{"title":"Mechanochemical Synthesis of Nanodispersed Compositions on the Base of Zn, Ce and Mo Oxides","authors":"","doi":"10.15407/nnn.20.02.359","DOIUrl":"https://doi.org/10.15407/nnn.20.02.359","url":null,"abstract":"","PeriodicalId":18830,"journal":{"name":"Nanosistemi, Nanomateriali, Nanotehnologii","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47766842","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}
Materials with pore sizes less than hundred nanometres are considered nanoporous. Their organic/inorganic framework supports their porous nature, and the pores are filled with fluid. The pores of consistent shape and fixed diameter are essential for these materials in specific applications. They own certain magnetic, electrical, and optical properties, which signi-fy them in various applications such as signal transmission, energy, medicine, etc . Apart from natural nanoporous materials in existence, fabrication of materials with required melting point through combining polymers is possible. Materials, which are tailored to achieve unnatural electromagnetic properties like negative dielectric constant, negative refractive index, electromagnetic index, etc ., are known as metamaterials. They are microscopically built from conventional materials such as metals and die-lectrics like plastics. Some of the metamaterials may be nanoporous but not all. Metamaterials find significant applications in designing of antennas, cloaking devices, sensing devices, etc . In view of the importance related to nanoporous and metamaterials, some of their applications are reviewed to the possible extent.
{"title":"Applications of Nanoporous and Metamaterials: An Unornamented Review","authors":"N. Prasad, T. A. Babu, N. Madhavi, S. Ramesh","doi":"10.15407/nnn.20.02.289","DOIUrl":"https://doi.org/10.15407/nnn.20.02.289","url":null,"abstract":"Materials with pore sizes less than hundred nanometres are considered nanoporous. Their organic/inorganic framework supports their porous nature, and the pores are filled with fluid. The pores of consistent shape and fixed diameter are essential for these materials in specific applications. They own certain magnetic, electrical, and optical properties, which signi-fy them in various applications such as signal transmission, energy, medicine, etc . Apart from natural nanoporous materials in existence, fabrication of materials with required melting point through combining polymers is possible. Materials, which are tailored to achieve unnatural electromagnetic properties like negative dielectric constant, negative refractive index, electromagnetic index, etc ., are known as metamaterials. They are microscopically built from conventional materials such as metals and die-lectrics like plastics. Some of the metamaterials may be nanoporous but not all. Metamaterials find significant applications in designing of antennas, cloaking devices, sensing devices, etc . In view of the importance related to nanoporous and metamaterials, some of their applications are reviewed to the possible extent.","PeriodicalId":18830,"journal":{"name":"Nanosistemi, Nanomateriali, Nanotehnologii","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43680682","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}
{"title":"Studies on Characteristics of Polymer/Ceramics Nanocomposites for Biomedical and Industrial Applications","authors":"","doi":"10.15407/nnn.20.02.535","DOIUrl":"https://doi.org/10.15407/nnn.20.02.535","url":null,"abstract":"","PeriodicalId":18830,"journal":{"name":"Nanosistemi, Nanomateriali, Nanotehnologii","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46084000","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}
{"title":"Heat-Transfer Processes in Multilayer Nanocomposite Systems During Cutting","authors":"","doi":"10.15407/nnn.20.02.385","DOIUrl":"https://doi.org/10.15407/nnn.20.02.385","url":null,"abstract":"","PeriodicalId":18830,"journal":{"name":"Nanosistemi, Nanomateriali, Nanotehnologii","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48026318","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}
{"title":"Fabrication and Properties of Film Nanocomposites (PVA–PAA)1–x/TiNx for Energy Storage and Release Application","authors":"","doi":"10.15407/nnn.20.01.165","DOIUrl":"https://doi.org/10.15407/nnn.20.01.165","url":null,"abstract":"","PeriodicalId":18830,"journal":{"name":"Nanosistemi, Nanomateriali, Nanotehnologii","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46591172","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}
Changes of temperature and composition play a major role in enhancement of the electronic properties of low-dimensional semiconductor devices. Therefore, the interest of researchers in this field is increased. In this article, we study the effect of both the temperature and the nitrogen ratio on the electronic structure of Ga x In 1 x N y As 1 y /InP quantum well. The band anticrossing model, Varshni model, and Bose–Einstein model are adopted to determine the nitrogen effect on conduction band ( E and E ). The band gap of Ga x In 1 x As as ternary alloy, and band offsets ( E c , E v ) for the Ga x In 1 x N y As 1 y /InP quantum wells are estimated as functions of nitrogen content and temperature. The splitting of conduction band into two non-parabolic subbands due to adding the nitrogen to GaInAs alloy contributes into increase of the band offset of Ga x In 1 x N y As 1 y /InP quantum well, and thus, into increase of the number of energy states inside the quantum well. The results may be useful for applications in electronic and optical devices.
温度和成分的变化对提高低维半导体器件的电子性能起着重要的作用。因此，研究人员对这一领域的兴趣增加了。在本文中，我们研究了温度和氮比对Ga x In 1 × x N y As 1 × y /InP量子阱电子结构的影响。采用能带反交叉模型、Varshni模型和玻色-爱因斯坦模型来确定氮对导带(E *和E)的影响。Ga的带隙在1x x作为三元合金,和带偏移量(E c,E v)的Ga x 1x N y 1y / InP量子井估计含氮量和温度的函数。在GaInAs合金中加入氮气使导带分裂为两个非抛物型的子带，增加了Ga x in1 × x N y as1 × y /InP量子阱的能带偏移量，从而增加了量子阱内的能态数。研究结果可用于电子和光学器件的应用。
{"title":"Theoretical Study of the Conduction Band and Energy Gap of GaInNAs/InP Quantum Well Structure","authors":"Hassan T. B. ALHammade","doi":"10.15407/nnn.20.01.015","DOIUrl":"https://doi.org/10.15407/nnn.20.01.015","url":null,"abstract":"Changes of temperature and composition play a major role in enhancement of the electronic properties of low-dimensional semiconductor devices. Therefore, the interest of researchers in this field is increased. In this article, we study the effect of both the temperature and the nitrogen ratio on the electronic structure of Ga x In 1 x N y As 1 y /InP quantum well. The band anticrossing model, Varshni model, and Bose–Einstein model are adopted to determine the nitrogen effect on conduction band ( E and E ). The band gap of Ga x In 1 x As as ternary alloy, and band offsets ( E c , E v ) for the Ga x In 1 x N y As 1 y /InP quantum wells are estimated as functions of nitrogen content and temperature. The splitting of conduction band into two non-parabolic subbands due to adding the nitrogen to GaInAs alloy contributes into increase of the band offset of Ga x In 1 x N y As 1 y /InP quantum well, and thus, into increase of the number of energy states inside the quantum well. The results may be useful for applications in electronic and optical devices.","PeriodicalId":18830,"journal":{"name":"Nanosistemi, Nanomateriali, Nanotehnologii","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41632895","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}
{"title":"Theoretical Method of Determining the Physical Parameters of Graphene","authors":"","doi":"10.15407/nnn.20.01.001","DOIUrl":"https://doi.org/10.15407/nnn.20.01.001","url":null,"abstract":"","PeriodicalId":18830,"journal":{"name":"Nanosistemi, Nanomateriali, Nanotehnologii","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43723066","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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