Pub Date : 2023-10-31DOI: 10.17586/2220-8054-2023-14-5-539-543
K.B. Tsiberkin
{"title":"Verification of continuum-based model of carbon materials","authors":"K.B. Tsiberkin","doi":"10.17586/2220-8054-2023-14-5-539-543","DOIUrl":"https://doi.org/10.17586/2220-8054-2023-14-5-539-543","url":null,"abstract":"","PeriodicalId":18782,"journal":{"name":"Nanosystems: Physics, Chemistry, Mathematics","volume":"27 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135979522","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 : 2023-10-31DOI: 10.17586/2220-8054-2023-14-5-505-510
U.N. Kuljanov
{"title":"On the spectrum of the two-particle Schrödinger operator with point potential: one dimensional case","authors":"U.N. Kuljanov","doi":"10.17586/2220-8054-2023-14-5-505-510","DOIUrl":"https://doi.org/10.17586/2220-8054-2023-14-5-505-510","url":null,"abstract":"","PeriodicalId":18782,"journal":{"name":"Nanosystems: Physics, Chemistry, Mathematics","volume":"253 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135979389","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 : 2023-10-31DOI: 10.17586/2220-8054-2023-14-5-518-529
A.M. Khalkhuzhaev, I.A. Khujamiyorov
{"title":"On the discrete spectrum of the Schrödinger operator using the 2+1 fermionic trimer on the lattice","authors":"A.M. Khalkhuzhaev, I.A. Khujamiyorov","doi":"10.17586/2220-8054-2023-14-5-518-529","DOIUrl":"https://doi.org/10.17586/2220-8054-2023-14-5-518-529","url":null,"abstract":"","PeriodicalId":18782,"journal":{"name":"Nanosystems: Physics, Chemistry, Mathematics","volume":"55 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135979387","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 : 2023-08-30DOI: 10.17586/2220-8054-2023-14-4-447-453
I. B. Dorosheva, A. Vokhmintsev, I. Weinstein, A. Rempel
A BSTRACT TiO 2 nanoparticles synthesized by the sol-gel method and modified by annealing in air and hydrogen atmospheres were studied by surface photovoltage spectroscopy (SPS). SPS measurements showed that the modified in air TiO 2 nanoparticles have a more intense signal than those treated in hydrogen. A linear correlation was found between the SPS and the diffuse reflectance spectra of the samples.
{"title":"Induced surface photovoltage in TiO2 sol-gel nanoparticles","authors":"I. B. Dorosheva, A. Vokhmintsev, I. Weinstein, A. Rempel","doi":"10.17586/2220-8054-2023-14-4-447-453","DOIUrl":"https://doi.org/10.17586/2220-8054-2023-14-4-447-453","url":null,"abstract":"A BSTRACT TiO 2 nanoparticles synthesized by the sol-gel method and modified by annealing in air and hydrogen atmospheres were studied by surface photovoltage spectroscopy (SPS). SPS measurements showed that the modified in air TiO 2 nanoparticles have a more intense signal than those treated in hydrogen. A linear correlation was found between the SPS and the diffuse reflectance spectra of the samples.","PeriodicalId":18782,"journal":{"name":"Nanosystems: Physics, Chemistry, Mathematics","volume":"15 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78796620","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 : 2023-08-30DOI: 10.17586/2220-8054-2023-14-4-405-412
S. Kanemitsu, Jay Mehta, Y. Sun, Dr. Vladimir N. Chubarikov
A BSTRACT To study point groups
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{"title":"Irreducible characters of the icosahedral group","authors":"S. Kanemitsu, Jay Mehta, Y. Sun, Dr. Vladimir N. Chubarikov","doi":"10.17586/2220-8054-2023-14-4-405-412","DOIUrl":"https://doi.org/10.17586/2220-8054-2023-14-4-405-412","url":null,"abstract":"A BSTRACT To study point groups","PeriodicalId":18782,"journal":{"name":"Nanosystems: Physics, Chemistry, Mathematics","volume":"24 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87526466","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 : 2023-08-30DOI: 10.17586/2220-8054-2023-14-4-438-446
Asma N. Naqash, Khurshed A. Shah, J. A. Sheikh, B. Kumbhani, Syed Muzaffar, Ali Andrabi
A BSTRACT In this study, we have investigated the transport properties of low bucked (LB) and high buck-led (HB) silicene based two probe devices such as I–V characteristics, conductance, transmission spectrum and projected device density of states. Firstly, we have opened a bandgap in both LB and HB zigzag silicene nanoribbon (ZSiNR) by hydrogen passivation and simulated for their transport properties. Further, we have doped the LB and HB ZSiNR structures by gallium (Ga) and arsenide (As) atoms in order to determine their changes in the transport properties. The results show that 4 atom width silicene nanoribbon shows a maximum band gap of 2.76 and 2.72 ˚A for LB-ZSiNR and HB-ZSiNR, respectively. The 2 atom doped ZSiNR shows good transport characteristics in the voltage range of 0.5 to 1.5 V in comparison with 4 and 6 atom doped models. The obtained results were validated by calculating the transmission spectrum and projected device density of states. It is believed that the modelled devices will find number of futuristic applications in the electronic industry.
{"title":"Transport properties of GaAs Co-doped H-passivated low-buckled and high-buckled zigzag silicene nanoribbon two probe devices","authors":"Asma N. Naqash, Khurshed A. Shah, J. A. Sheikh, B. Kumbhani, Syed Muzaffar, Ali Andrabi","doi":"10.17586/2220-8054-2023-14-4-438-446","DOIUrl":"https://doi.org/10.17586/2220-8054-2023-14-4-438-446","url":null,"abstract":"A BSTRACT In this study, we have investigated the transport properties of low bucked (LB) and high buck-led (HB) silicene based two probe devices such as I–V characteristics, conductance, transmission spectrum and projected device density of states. Firstly, we have opened a bandgap in both LB and HB zigzag silicene nanoribbon (ZSiNR) by hydrogen passivation and simulated for their transport properties. Further, we have doped the LB and HB ZSiNR structures by gallium (Ga) and arsenide (As) atoms in order to determine their changes in the transport properties. The results show that 4 atom width silicene nanoribbon shows a maximum band gap of 2.76 and 2.72 ˚A for LB-ZSiNR and HB-ZSiNR, respectively. The 2 atom doped ZSiNR shows good transport characteristics in the voltage range of 0.5 to 1.5 V in comparison with 4 and 6 atom doped models. The obtained results were validated by calculating the transmission spectrum and projected device density of states. It is believed that the modelled devices will find number of futuristic applications in the electronic industry.","PeriodicalId":18782,"journal":{"name":"Nanosystems: Physics, Chemistry, Mathematics","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81224718","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 : 2023-08-30DOI: 10.17586/2220-8054-2023-14-4-428-437
J. Dweik, H. Farhat, J. Younis
A BSTRACT The validity of different analytical approximations solution is studied using the classical Poisson– Boltzmann (PB) equation based on a mean-field description of ions as ideal point charges in combination with the assumption of fully overlapped electrical double layers in the membrane pores. The electrical conductivity is calculated by numerical and approximate analytical methods in order to explain the process of ion transport. In this paper, a new analytical approximation named the extended homogeneous approximation (EH) is presented, which provides better results than the homogeneous approximation based on Donnan theory. Also, the results show that the electrical conductivity calculated by the EH, is coherent with the numerical method within specific limits.
{"title":"The Space Charge Model. A new analytical approximation solution of Poisson-Boltzmann equation: the extended homogeneous approximation","authors":"J. Dweik, H. Farhat, J. Younis","doi":"10.17586/2220-8054-2023-14-4-428-437","DOIUrl":"https://doi.org/10.17586/2220-8054-2023-14-4-428-437","url":null,"abstract":"A BSTRACT The validity of different analytical approximations solution is studied using the classical Poisson– Boltzmann (PB) equation based on a mean-field description of ions as ideal point charges in combination with the assumption of fully overlapped electrical double layers in the membrane pores. The electrical conductivity is calculated by numerical and approximate analytical methods in order to explain the process of ion transport. In this paper, a new analytical approximation named the extended homogeneous approximation (EH) is presented, which provides better results than the homogeneous approximation based on Donnan theory. Also, the results show that the electrical conductivity calculated by the EH, is coherent with the numerical method within specific limits.","PeriodicalId":18782,"journal":{"name":"Nanosystems: Physics, Chemistry, Mathematics","volume":"32 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74226842","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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