Pub Date : 2012-11-26DOI: 10.1109/IFOST.2012.6357653
J. Koo
An interpreted system is a formal description of the computations carried out by a set of agents. And also interpreted systems have been proven a suitable formalism for reasoning about temporal and epistemic properties of agents. Alternating-time temporal logic(ATL) is a temporal logic that incorporates some basic game theoretical notions. Interpreted systems and the concurrent game structures in ATL are closely related. So we study the differences and similarities between the interpreted systems and the game structures for the notions like time, knowledge, strategy for analyzing the behavior of agents and multi-agent systems.
{"title":"Interpreted systems and game structures","authors":"J. Koo","doi":"10.1109/IFOST.2012.6357653","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357653","url":null,"abstract":"An interpreted system is a formal description of the computations carried out by a set of agents. And also interpreted systems have been proven a suitable formalism for reasoning about temporal and epistemic properties of agents. Alternating-time temporal logic(ATL) is a temporal logic that incorporates some basic game theoretical notions. Interpreted systems and the concurrent game structures in ATL are closely related. So we study the differences and similarities between the interpreted systems and the game structures for the notions like time, knowledge, strategy for analyzing the behavior of agents and multi-agent systems.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114832445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-26DOI: 10.1109/IFOST.2012.6357679
T. Minh, A. Shmoilov
To bring the definition of technical efficiency relay protections high-voltage electrical network, especially for the distance relay protection. To analyze the technical actions to limit and expand the characteristics numerical distance relay protection in order to reduce losses and improve functioning protection. Considering the specifications, efficiency and losses of the backup stages distance relay protection on high-voltage lines. Based on the analysis of technical efficiency proposes recommendations for designing and setting backup stages distance relay protection of high-voltage lines electrical network.
{"title":"The efficiency of functioning and setting backup stages line distance relay protection of high-voltage electrical network","authors":"T. Minh, A. Shmoilov","doi":"10.1109/IFOST.2012.6357679","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357679","url":null,"abstract":"To bring the definition of technical efficiency relay protections high-voltage electrical network, especially for the distance relay protection. To analyze the technical actions to limit and expand the characteristics numerical distance relay protection in order to reduce losses and improve functioning protection. Considering the specifications, efficiency and losses of the backup stages distance relay protection on high-voltage lines. Based on the analysis of technical efficiency proposes recommendations for designing and setting backup stages distance relay protection of high-voltage lines electrical network.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115535181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-26DOI: 10.1109/IFOST.2012.6357651
A. Grigoreva
The article describes the information system determine the competitiveness of innovative products on the basis of the theory of fuzzy sets and methods for multicriteria evaluation of alternatives.
本文描述了信息系统在模糊集理论和多准则评价方法的基础上确定创新产品竞争力的方法。
{"title":"Information system of innovative products competitiveness determining","authors":"A. Grigoreva","doi":"10.1109/IFOST.2012.6357651","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357651","url":null,"abstract":"The article describes the information system determine the competitiveness of innovative products on the basis of the theory of fuzzy sets and methods for multicriteria evaluation of alternatives.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"12 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117113704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-26DOI: 10.1109/IFOST.2012.6357575
Y. Yuryev, A. Yuryeva, D. Korzhenko, O. Stepanova
This paper concerns with the problem of obtaining the diamond-like carbon (DLC) films. DLC films have high hardness, low friction coefficient, low electrical conductivity, chemical inertness, high thermal conductivity and other valuable properties. Due to these properties DLC films are used as protective, dielectric, antireflecting, antifriction and biocompatible coatings. The most popular methods for DLC film production are vacuum arc evaporation and pulsed laser ablation. However, using these methods presents some difficulties. The main disadvantage of the coatings' deposition from the arc discharge plasma is drop fraction which degrades the quality of the obtained coatings. The disadvantage of the pulsed laser ablation is its technical complexity and difficulties in realization of the method. In this paper the magnetron sputtering is treated as an alternative method for producing the DLC films. The object of research is dual magnetron sputtering system (DMSS), which has advantages over planar magnetron system. The research of different operation modes of the DMSS while sputtering the carbon target in the Ar environment and the analysis of the hardness, electrical resistance and phase structure of the obtained DLC films on polished stainless steel are reported.
{"title":"Deposition of diamond-like carbon films from the magnetron discharge plasma","authors":"Y. Yuryev, A. Yuryeva, D. Korzhenko, O. Stepanova","doi":"10.1109/IFOST.2012.6357575","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357575","url":null,"abstract":"This paper concerns with the problem of obtaining the diamond-like carbon (DLC) films. DLC films have high hardness, low friction coefficient, low electrical conductivity, chemical inertness, high thermal conductivity and other valuable properties. Due to these properties DLC films are used as protective, dielectric, antireflecting, antifriction and biocompatible coatings. The most popular methods for DLC film production are vacuum arc evaporation and pulsed laser ablation. However, using these methods presents some difficulties. The main disadvantage of the coatings' deposition from the arc discharge plasma is drop fraction which degrades the quality of the obtained coatings. The disadvantage of the pulsed laser ablation is its technical complexity and difficulties in realization of the method. In this paper the magnetron sputtering is treated as an alternative method for producing the DLC films. The object of research is dual magnetron sputtering system (DMSS), which has advantages over planar magnetron system. The research of different operation modes of the DMSS while sputtering the carbon target in the Ar environment and the analysis of the hardness, electrical resistance and phase structure of the obtained DLC films on polished stainless steel are reported.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115321178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-26DOI: 10.1109/IFOST.2012.6357542
Xiaojing Liu, Xuehuan Huo, Miao Zhang
Aimed at the problems of crack, wrinkle and springback caused by base metal different forming property of Tailor-Welded Blanks (TWBs) on two sides of welding line, the bending springback research on TWBs with different thickness which have transverse weld is carried out by the methods of combining numerical simulation with experiments. Based on optimized forming technology, the method of split blank holder is proposed to form the TWBs components. On the basis of the result of springback calculations, the die surface compensation is carried applying the springback compensation module (SCP/Compensation) in the FEM numerical simulation analysis software of DYNAFORM. The simulation results indicate that applying the die after two times of compensation to finish the bending process, the component surface after springback is identical with that of standard component, and the influences of springback on component forming can be eliminated basically. The experiment of U-shaped part forming is done to confirm the accuracy of the finite element numerical simulation results.
{"title":"Research on springback of Tailor Welded Blanks with different thickness and surface compensation based on numerical simulation","authors":"Xiaojing Liu, Xuehuan Huo, Miao Zhang","doi":"10.1109/IFOST.2012.6357542","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357542","url":null,"abstract":"Aimed at the problems of crack, wrinkle and springback caused by base metal different forming property of Tailor-Welded Blanks (TWBs) on two sides of welding line, the bending springback research on TWBs with different thickness which have transverse weld is carried out by the methods of combining numerical simulation with experiments. Based on optimized forming technology, the method of split blank holder is proposed to form the TWBs components. On the basis of the result of springback calculations, the die surface compensation is carried applying the springback compensation module (SCP/Compensation) in the FEM numerical simulation analysis software of DYNAFORM. The simulation results indicate that applying the die after two times of compensation to finish the bending process, the component surface after springback is identical with that of standard component, and the influences of springback on component forming can be eliminated basically. The experiment of U-shaped part forming is done to confirm the accuracy of the finite element numerical simulation results.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123274578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-26DOI: 10.1109/IFOST.2012.6357490
Yandan Zhu, Lifeng Wang, Yang Liu, Ye Lv
The reliability of SAC lead-free solder joints are believed to be greatly influenced by the interfacial intermetallic compounds (IMCs) between solders and substrates. Our previous works investigated the effects of minimal rare earth (RE) elements addition on the interfacial IMCs under different aging time. Experimental results showed that the appropriate RE content is 0.07wt% La in Sn-0.3Ag-0.7Cu (SAC0307). In this paper, the influences of reflow parameters and Ce addition on the IMCs of SAC0307-0.07La/Cu solder joints were studied. The morphologies of IMCs were characterized by metallographic microscope (OM) and scanning electron microscope (SEM). Besides, the shear strength of the solder joints was evaluated by the shear tests. In comparison purpose, all the solder balls were prepared under the same conditions. The results showed that the thicknesses of the IMCs increased following the linear law and the shear strength varied under the parabolic law with the increase of reflow time. Meanwhile, the shear strength of the solder joints increased almost linearly with the increase of the cooling rate. The main failure mode was ductile fracture when the shear speed was 0.05mm/s.
{"title":"Effect of RE element addition and processing parameters on the shear strength and interfacial IMCs of SAC solder joints","authors":"Yandan Zhu, Lifeng Wang, Yang Liu, Ye Lv","doi":"10.1109/IFOST.2012.6357490","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357490","url":null,"abstract":"The reliability of SAC lead-free solder joints are believed to be greatly influenced by the interfacial intermetallic compounds (IMCs) between solders and substrates. Our previous works investigated the effects of minimal rare earth (RE) elements addition on the interfacial IMCs under different aging time. Experimental results showed that the appropriate RE content is 0.07wt% La in Sn-0.3Ag-0.7Cu (SAC0307). In this paper, the influences of reflow parameters and Ce addition on the IMCs of SAC0307-0.07La/Cu solder joints were studied. The morphologies of IMCs were characterized by metallographic microscope (OM) and scanning electron microscope (SEM). Besides, the shear strength of the solder joints was evaluated by the shear tests. In comparison purpose, all the solder balls were prepared under the same conditions. The results showed that the thicknesses of the IMCs increased following the linear law and the shear strength varied under the parabolic law with the increase of reflow time. Meanwhile, the shear strength of the solder joints increased almost linearly with the increase of the cooling rate. The main failure mode was ductile fracture when the shear speed was 0.05mm/s.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"270 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124370497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-26DOI: 10.1109/IFOST.2012.6357825
Ji-Ho Lee, I. Oh, C. Sim, C. Yoo, Yangho Kim
This study aims to investigate the AD (asthma, allergic rhinitis and atopic dermatitis) prevalence for elementary schoolchildren in an industrial city of Ulsan, Korea and to identify major environmental risk factors associated with AD prevalence. Data on the physician-diagnosed prevalence in the past 12 months and potential risk factors of AD were collected by a questionnaire including ISAAC core questions from the 2009-2010 survey of 4,067 schoolchildren (1st-6th grade) living in different urban environments. Exposure to outdoor air pollution was estimated by using annual mean concentrations of pollutants (PM10, O3, NO2, SO2 and CO) obtained from monitoring sites near the participant's residence. Our survey results showed that the AD prevalence rate ranged between 26.2% and 35.9%. Children living in polluted areas (near industrial and central urban areas) had about 10% higher prevalence of AD than those living in coastal or suburban residences. The Chi-Square test demonstrated that this local difference was statistically significant before and after adjustment of major confounder such as parental AD history and parental education. The results of the logistic regression analysis showed that current AD prevalence was significantly associated independently with socio-economic indices and indoor/outdoor environmental factors. Statistically significant association between several environmental factors (ventilation in winter, odor condition and exposure to traffic smoke, and outdoor PM10/O3 pollution) and the prevalence of AD was found by multivariate model after adjusting confounders. The adjusted odd ratios for the AD prevalence were 1.24 (95% CI: 1.03-1.49) and 1.79 (95% CI: 1.17-2.75) with increase in PM10 level of 10 μg m-3 and O3 level of 10 ppb, respectively. Although there should be other risk factors for AD, these results suggest that living in polluted area and exposure to high levels of air pollutants can contribute to the increased risk of childhood AD.
{"title":"Prevalence of children's allergic diseases in Ulsan: Local differences and environmental risk factors","authors":"Ji-Ho Lee, I. Oh, C. Sim, C. Yoo, Yangho Kim","doi":"10.1109/IFOST.2012.6357825","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357825","url":null,"abstract":"This study aims to investigate the AD (asthma, allergic rhinitis and atopic dermatitis) prevalence for elementary schoolchildren in an industrial city of Ulsan, Korea and to identify major environmental risk factors associated with AD prevalence. Data on the physician-diagnosed prevalence in the past 12 months and potential risk factors of AD were collected by a questionnaire including ISAAC core questions from the 2009-2010 survey of 4,067 schoolchildren (1st-6th grade) living in different urban environments. Exposure to outdoor air pollution was estimated by using annual mean concentrations of pollutants (PM10, O3, NO2, SO2 and CO) obtained from monitoring sites near the participant's residence. Our survey results showed that the AD prevalence rate ranged between 26.2% and 35.9%. Children living in polluted areas (near industrial and central urban areas) had about 10% higher prevalence of AD than those living in coastal or suburban residences. The Chi-Square test demonstrated that this local difference was statistically significant before and after adjustment of major confounder such as parental AD history and parental education. The results of the logistic regression analysis showed that current AD prevalence was significantly associated independently with socio-economic indices and indoor/outdoor environmental factors. Statistically significant association between several environmental factors (ventilation in winter, odor condition and exposure to traffic smoke, and outdoor PM10/O3 pollution) and the prevalence of AD was found by multivariate model after adjusting confounders. The adjusted odd ratios for the AD prevalence were 1.24 (95% CI: 1.03-1.49) and 1.79 (95% CI: 1.17-2.75) with increase in PM10 level of 10 μg m-3 and O3 level of 10 ppb, respectively. Although there should be other risk factors for AD, these results suggest that living in polluted area and exposure to high levels of air pollutants can contribute to the increased risk of childhood AD.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124980583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-26DOI: 10.1109/IFOST.2012.6357594
O. Khasanov, E. Dvilis, A. Khasanov, A. Kachaev, Z. Bikbaeva, V. Polisadova, T. Milovanova
The B4C ceramic samples have been manufactured by SPS method using mixed micrometric and nano-scaled powder. The microstructure, density, microhardness, fracture toughness of sintered ceramics have been investigated. The optimal processing modes have been determined.
{"title":"Development of B4C nanostructured ceramics","authors":"O. Khasanov, E. Dvilis, A. Khasanov, A. Kachaev, Z. Bikbaeva, V. Polisadova, T. Milovanova","doi":"10.1109/IFOST.2012.6357594","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357594","url":null,"abstract":"The B4C ceramic samples have been manufactured by SPS method using mixed micrometric and nano-scaled powder. The microstructure, density, microhardness, fracture toughness of sintered ceramics have been investigated. The optimal processing modes have been determined.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125155034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-26DOI: 10.1109/IFOST.2012.6357760
V. Polovnikov
The results of numerical investigation are reported on thermal regimes in the systems of heat transport based on the solution of the conjugative problem of conductive-convective heat transfer in the system “twin - tube - channel underground heat pipeline - environmental medium.” It is shown that the use of the proposed approach allows one to perform the comprehensive analysis of the heating regimes in such systems.
{"title":"Numerical investigation of thermal regimes of heat pipelines","authors":"V. Polovnikov","doi":"10.1109/IFOST.2012.6357760","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357760","url":null,"abstract":"The results of numerical investigation are reported on thermal regimes in the systems of heat transport based on the solution of the conjugative problem of conductive-convective heat transfer in the system “twin - tube - channel underground heat pipeline - environmental medium.” It is shown that the use of the proposed approach allows one to perform the comprehensive analysis of the heating regimes in such systems.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125398377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-11-26DOI: 10.1109/IFOST.2012.6357547
Wei Zheng, S. Cui, Xiaona Zhang
Solar cell is the most effective form to use solar energy. The researchers focused on the dye-sensitized solar cell (DSSC) due to its low cost and high transformation efficiency. TiO2 photoanode was modified by doping the wide band gap semiconductor of CaO into TiO2 matrix. The influence of modification on DSSC was discussed in this paper. The results indicated that most CaO could pass into the surface structure of TiO2 and the particle size of CaO was close to TiO2. The forbidden band structure of TiO2 was changed by the energy barrier of the CaO/TiO2 core-shell film. The interface effect between CaO and TiO2 could increase the transmission path of light inside the film and the absorbance was enhanced. Under the surface modification of CaO, the absorption capacity of N3 dye, absorbance and conversion efficiency were highly improved. Especially, the photoelectric conversion efficiency was increased 18.94% compared with pure TiO2. Thus, we can improve the photoelectrical performance of DSSC by using surface modification.
太阳能电池是利用太阳能最有效的形式。染料敏化太阳能电池(dye-sensitized solar cell, DSSC)因其成本低、转化效率高而备受关注。通过在TiO2基体中掺杂氧化钙的宽禁带半导体来修饰TiO2光阳极。讨论了改性对DSSC的影响。结果表明，CaO大部分能进入TiO2的表面结构，且CaO的粒径与TiO2接近。CaO/TiO2核壳膜的能垒改变了TiO2的禁带结构。CaO与TiO2之间的界面效应增加了光在膜内的透射路径，提高了吸光度。在CaO的表面改性下，N3染料的吸收能力、吸光度和转化效率都得到了很大的提高。与纯TiO2相比，光电转换效率提高了18.94%。因此，我们可以通过表面改性来改善DSSC的光电性能。
{"title":"The research of CaO/TiO2 nanocrystalline film for dye-sensitized solar cell","authors":"Wei Zheng, S. Cui, Xiaona Zhang","doi":"10.1109/IFOST.2012.6357547","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357547","url":null,"abstract":"Solar cell is the most effective form to use solar energy. The researchers focused on the dye-sensitized solar cell (DSSC) due to its low cost and high transformation efficiency. TiO2 photoanode was modified by doping the wide band gap semiconductor of CaO into TiO2 matrix. The influence of modification on DSSC was discussed in this paper. The results indicated that most CaO could pass into the surface structure of TiO2 and the particle size of CaO was close to TiO2. The forbidden band structure of TiO2 was changed by the energy barrier of the CaO/TiO2 core-shell film. The interface effect between CaO and TiO2 could increase the transmission path of light inside the film and the absorbance was enhanced. Under the surface modification of CaO, the absorption capacity of N3 dye, absorbance and conversion efficiency were highly improved. Especially, the photoelectric conversion efficiency was increased 18.94% compared with pure TiO2. Thus, we can improve the photoelectrical performance of DSSC by using surface modification.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114580767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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