{"title":"Фотопроводимость монокристаллов слоистого полупроводника p-GaSe, легированного редкоземельными элементами, и многодиапазонный фотоприемник света на их основе","authors":"А. Ш. Абдинов, Р. Ф. Бабаева","doi":"10.21883/ftp.2022.05.52346.8902","DOIUrl":"https://doi.org/10.21883/ftp.2022.05.52346.8902","url":null,"abstract":"The main characteristics of intrinsic photoconductivity and the spectra of negative photoconductivity induced by impurity photoconductivity, infrared quenching of intrinsic photoconductivity in doped REE (gadolinium and dysprosium) at N = 0−10−1 at%, p-GaSe single crystals are experimentally investigated. It is shown that the instability and irreproducibility of the photoelectric characteristics of this semiconductor are due to fluctuations in the electronic potential associated with the presence of random macroscopic defects. The dependence of photoelectric parameters and characteristics on N, as well as ensuring a high degree of their stability and reproducibility at N ≈ 10−1 at%, are associated with the corresponding changes in the fluctuations of the electronic potential and the fraction of covalent bonds between the layers, depending on N. Shown is the possibility of creating a multi-range photodetector of light with stable, reproducible parameters and characteristics based on p-GaSe at N = 10−2−10−1 at%.","PeriodicalId":24054,"journal":{"name":"Физика и техника полупроводников","volume":"1999 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88258939","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}
А. И. Бобров, Н.В. Байдусь, С.В. Хазанова, А. П. Горшков, К. В. Сидоренко, А. Н. Шушунов, Н. В. Малехонова, А. В. Нежданов, А. В. Здоровейщев, В. Н. Трушин, Е.В. Убыйвовк, А. И. Охапкин, Д.С. Клементьев, З.Ш. Гасайниев, А. В. Харламов
{"title":"Проектирование дизайна туннельно-связанных квантовых ям для создания модулятора по схеме Маха--Цендера","authors":"А. И. Бобров, Н.В. Байдусь, С.В. Хазанова, А. П. Горшков, К. В. Сидоренко, А. Н. Шушунов, Н. В. Малехонова, А. В. Нежданов, А. В. Здоровейщев, В. Н. Трушин, Е.В. Убыйвовк, А. И. Охапкин, Д.С. Клементьев, З.Ш. Гасайниев, А. В. Харламов","doi":"10.21883/ftp.2022.09.53400.35","DOIUrl":"https://doi.org/10.21883/ftp.2022.09.53400.35","url":null,"abstract":"In this paper, we propose a method for predicting the refractive index variation in InGaAlAs tunnel-coupled quantum wells under the action of an electric field. Complex of mathematical and experimental studies to optimize the heterosystems design forthe semiconductor modulator construction according to a planar Mach-Zehnder interferometer scheme is demonstrated.","PeriodicalId":24054,"journal":{"name":"Физика и техника полупроводников","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77261330","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}
Р. Н. Рагимов, А.С. Кахраманова, Д. Г. Араслы, А. А. Халилова, И. Х. Мамедов, А.Р. Халилзаде
{"title":"Термоэлектрические свойства твердых растворов Ag-=SUB=-8-=/SUB=-Ge-=SUB=-1-x-=/SUB=-Mn-=SUB=-x-=/SUB=-Te-=SUB=-6-=/SUB=-","authors":"Р. Н. Рагимов, А.С. Кахраманова, Д. Г. Араслы, А. А. Халилова, И. Х. Мамедов, А.Р. Халилзаде","doi":"10.21883/ftp.2022.09.53406.9760","DOIUrl":"https://doi.org/10.21883/ftp.2022.09.53406.9760","url":null,"abstract":"Abstract. Ag8Ge1-xMnxTe6 solid solutions with different manganese content (x = 0; 0.05; 0.1; 0.2) were prepared by alloying and further pressing the powders under a pressure of 0.6 GPa. By the X-ray diffraction studies have shown that the introduction of manganese atoms leads to the compressibility of the Ag8Ge1-xMnxTe6 lattice. All p-type samples had high resistance below the transition at temperatures of 180 - 220 K. An increase in electrical conductivity in the range of 220 - 300 K was analyzed using the Mott ratio; at temperatures T > 320 K, semiconductor behavior is observed in all compositions. The highest thermoelectric figure of merit ZT = 0.7 at 550 K was obtained for a solid solution of the composition Ag8Ge1-xMnxTe6 (х = 0.05).","PeriodicalId":24054,"journal":{"name":"Физика и техника полупроводников","volume":"46 10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82744687","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}
Н.К. Морозова, И.И. Аббасов, Е. М. Гаврищук, М. А. Мусаев, Дж. И. Гусейнов, А.Дж. Маммадова
{"title":"Изучение многополосного экситонного спектра ZnSe в области 477-490 нм","authors":"Н.К. Морозова, И.И. Аббасов, Е. М. Гаврищук, М. А. Мусаев, Дж. И. Гусейнов, А.Дж. Маммадова","doi":"10.21883/ftp.2022.01.51816.9741","DOIUrl":"https://doi.org/10.21883/ftp.2022.01.51816.9741","url":null,"abstract":"Изучены спектры фотолюминесценции поликристаллического CVD (chemical vapour deposition) ZnSe, выращенного с большим избытком селена и содержащего комплексы O*Se-Cu+i на дефектах упаковки. Измерено поглощение, дополняющее эти данные. Рассмотрены особенности спектров фотолюминесценции по сравнению с катодолюминесценцией. Показано, что идентичные полосы фотолюминесценции наблюдаются как несколько более коротковолновые, чем полосы катодолюминесценции. Для исследованных кристаллов представлена зонная модель согласно результатам, полученным в данной работе. Длинноволновое смещение спектров фотолюминесценции при уменьшении энергии возбуждения соответствует сдвигу по энергетической шкале зонной модели с соответствующим изменением типа излучательных переходов. Внесены изменения, определяющие природу группы эквидистантных полос 477-490 нм, характерных для образцов ZnSe с избытком кислорода и Se. Результаты могут быть полезны для более полного изучения структуры многофононных экситонных спектров фото- и катодолюминесценции кристаллов АIIВVI. Ключевые слова: зонная модель, узколинейчатые многофононные спектры, экситонное излучение, дефекты упаковки, изоэлектронная примесь кислорода, несущая эффективный отрицательный заряд.","PeriodicalId":24054,"journal":{"name":"Физика и техника полупроводников","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90287582","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":"The Analytical Effects of a Hydrostatic Pressure on the Ground State Energy of GaAs Quantum Dot at Low-Temperature: Algebraic Method","authors":"F. S. Nammas, E. H. Hasan","doi":"10.21883/ftp.2022.10.53959.9847","DOIUrl":"https://doi.org/10.21883/ftp.2022.10.53959.9847","url":null,"abstract":"This analytical study focused on discussing the collective effects of hydrostatic pressure and temperature on the ground state energy for two electrons trapped in GaAs parabolic quantum dot in the presence of a magnetic field using the effective mass approximation. The electronic interaction was approximated by the Johnson-Payne potential model, where its parameters were carefully chosen to match the Coulomb interaction. It is noted that the ground state energy decreases with an increment in pressure while it increases linearly slightly with increasing temperature. As is customary, it was found that ground state energy decreases with increasing dot size and reach its bulk value as the dot becomes wider. Among the most prominent notes related to this study were as follows: (i) The largest contribution to the total ground state energy is caused by the relative motion since the effect of pressure on this part is more pronounced than the part of the center of mass that often does not feel the presence of pressure. (ii) Ground state energy shows temperature insensitivity while pressure exerts a tangible effect on the ground state energy in the strong magnetic field confinement. (iii) The effect of temperature on the ground state energy is always the opposite of the pressure effect. (iv) With regard to the increase in pressure, it was found that it reduces the electron separation (r), therefore the ground state energy decreases in the presence of the harmonic interaction that is directly proportional to the square of r, but compared to previous works mentioned in the literature, energy showed increased behavior because Coulomb's interaction is inversely proportional to the electron separation. (v) In the region of weak confinement (R>aB*), the effect of pressure on ground state energy becomes neglected, while this effect becomes noticeable in the region of ??strong confinement (R<aB*). Keywords: Quantum Dots, Hydrostatic Pressure, Harmonic e-e Interaction.","PeriodicalId":24054,"journal":{"name":"Физика и техника полупроводников","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88807371","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":"Локализованные состояния π-электронов в спектре оптического поглощения высокотетраэдрического аморфного углерода","authors":"М.С. Чекулаев, С.Г. Ястребов","doi":"10.21883/ftp.2022.04.52199.9757","DOIUrl":"https://doi.org/10.21883/ftp.2022.04.52199.9757","url":null,"abstract":"The paper presents result of ab initio methods exploiting to calculate the molar extinction spectrum of some model clusters, the molecular hybrid C24H30 included. Based on the comparison of the calculation with the experimental spectra of the main allotropic modifications of carbon, the absorption maximum with an energy of ~ 6 eV in the absorption spectrum of highly tetrahedral amorphous carbon (tа-C) attributed to the π → π * optical transitions of electrons in a single aromatic ring. The edge sites of the ring covalently bonded with the sp3 hybridised carbon atoms of the amorphous matrix. The manifestation of a shoulder in the spectrum of the imaginary part of the refractive index of a film of highly tetrahedral amorphous carbon (tа-C), 4.6 eV, is assigned to π → π * optical transitions of clusters distorted with hybrid Stone-Wallace-like defect, also covalently bonded with the amorphous matrix. Key words: interaction of light with matter, new forms of carbon, tetrahedrally coordinated amorphous carbon, Stone–Wales defect","PeriodicalId":24054,"journal":{"name":"Физика и техника полупроводников","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88849289","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":"Аномалии теплового расширения и теплопроводности монокристаллов CuIn-=SUB=-7-=/SUB=-Se-=SUB=-11-=/SUB=-","authors":"И. В. Боднарь, В. В. Хорошко","doi":"10.21883/ftp.2022.03.52109.9759","DOIUrl":"https://doi.org/10.21883/ftp.2022.03.52109.9759","url":null,"abstract":"Методом Бриджмена из расплава выращены однородные монокристаллы CuIn7Se11 диаметром ~ 14 мм и длиной ~ 40 мм. Определен состав и структура полученных монокристаллов. Показано, что полученные монокристаллы кристаллизуются в гексагональной структуре. На ориентированных монокристаллах параллельно и перпендикулярно главной оси кристалла c исследована анизотропия теплового расширения и теплопроводности в интервале температур 80-650 K. Установлено, что на указанных монокристаллах, ориентированных параллельно главной оси кристалла наблюдаются аномалии теплового расширения и теплопроводности. Ключевые слова: метод Бриджмена, монокристаллы, кристаллическая структура, тепловое расширение, теплопроводность.","PeriodicalId":24054,"journal":{"name":"Физика и техника полупроводников","volume":"65 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86060704","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}
В.Р. Расулов, Р.Я. Расулов, Б. Б. Ахмедов, И.А. Муминов
{"title":"Межзонный двухфотонный линейно-циркулярный дихроизм в полупроводниках в приближении Кейна","authors":"В.Р. Расулов, Р.Я. Расулов, Б. Б. Ахмедов, И.А. Муминов","doi":"10.21883/ftp.2022.01.51813.9719","DOIUrl":"https://doi.org/10.21883/ftp.2022.01.51813.9719","url":null,"abstract":"Interband two-photon optical transitions are classified and expressions are obtained for the matrix elements in a narrow-gap semiconductor depending on the band parameters, degree of polarization, and light frequency. It is shown that the main contribution to two-photon linear-circular dichroism in narrow-gap semiconductors is made by optical transitions proceeding from the subband of light holes to the conduction band. The dependences of the partial coefficients of interband two-photon absorption of light, which differ from each other by the types of optical transitions, are analyzed depending on the degree of polarization of the light, and a quantitative analysis of the coefficient of linear-circular dichroism of two-photon absorption of light is carried out. Expressions are obtained for the spectral dependence of the coefficient of interband two-photon absorption of light in narrow-gap semiconductors in the Kane model.","PeriodicalId":24054,"journal":{"name":"Физика и техника полупроводников","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89746824","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}
Д. Д. Ефимов, В.А. Комаров, Н.С. Каблукова, Е. В. Демидов, М. В. Старицын
{"title":"Блочные и монокристаллические пленки сплава висмут--сурьма 3-12 ат% с подслоем сурьмы","authors":"Д. Д. Ефимов, В.А. Комаров, Н.С. Каблукова, Е. В. Демидов, М. В. Старицын","doi":"10.21883/ftp.2022.02.51953.20a","DOIUrl":"https://doi.org/10.21883/ftp.2022.02.51953.20a","url":null,"abstract":"We investigated the effect of the antimony underlayer (10 nm) on the structure and galvanomagnetic properties of bismuth-antimony solid solution thin films (3-12 at.% Sb). The films were obtained on mica substrates by discrete vacuum evaporation and zone recrystallization. We found that the misorientation of the crystallite plane (111) increases relative to the film plane as well as the crystallite sizes decrease. The antimony underlayer does not change the crystallographic orientation during recrystallization and increases the film adhesion. The change in the galvanomagnetic coefficients when using a sublayer is due to the classical dimensional effect and increasing plane deformation.","PeriodicalId":24054,"journal":{"name":"Физика и техника полупроводников","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87497897","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}
Алексей Евгеньевич Климов, В. А. Голяшов, Д В Горшков, Е.В. Матюшенко, Игорь Георгиевич Неизвестный, Г. И. Сидоров, Н. С. Пащин, С.П. Супрун, О. Е. Терещенко
{"title":"МДП транзистор на основе пленки PbSnTe : In с подзатворным диэлектриком Al-=SUB=-2-=/SUB=-O-=SUB=-3-=/SUB=--=SUP=-*-=/SUP=-","authors":"Алексей Евгеньевич Климов, В. А. Голяшов, Д В Горшков, Е.В. Матюшенко, Игорь Георгиевич Неизвестный, Г. И. Сидоров, Н. С. Пащин, С.П. Супрун, О. Е. Терещенко","doi":"10.21883/ftp.2022.02.51969.30","DOIUrl":"https://doi.org/10.21883/ftp.2022.02.51969.30","url":null,"abstract":"Results on the creation and properties of transistor-type MIS structures (MIST) with an Al2O3 thin-film gate dielectric based on PbSnTe:In films obtained by molecular beam epitaxy are presented. The source-drain current-voltage characteristics (CVC) and gate characteristics of the MIST at Т = 4.2 К have been investigated. It is shown that in MIST based on PbSnTe:In films with n ~ 1017 cm-3 the modulation of the channel current reaches 7 – 8 % in the range of gate voltages – 10 V < Ugate < + 10 V. The features of the source-drain CVC and the gate characteristics for a pulsed and sawtooth variation of Ugate are considered.","PeriodicalId":24054,"journal":{"name":"Физика и техника полупроводников","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87509631","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}