Structural and optical properties of undoped and doped ZnSe/GaAs strained heterostructures

Kim, T.W; Jung, M.; Lee, D.U; Oh, Eunsoon; Lee, S.D; Jung, Hyun Ae; Kim, M.D; Kim, J.R; Park, H.S; Lee, J.Y

doi:10.1016/s0040-6090(96)09323-6

Cited by 11 publications

(2 citation statements)

References 17 publications

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“…Thin ZnSe films were obtained by the following methods: RF magnetron sputtering [7], organic metal vapor deposition [8], molecular beam epitaxy, organic metal vapor phase epitaxy [9], and vacuum evaporation [10].…”

Section: Introductionmentioning

confidence: 99%

Creation of ZnSe nanoclusters in a silicon dioxide track template on silicon

Akylbekovа¹,

Baimukhanov²,

Dauletbekova³

2022

8th International Congress on Energy Fluxes and Radiation Effects

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In this work, we study the formation of zinc selenide nanocrystals during chemical deposition into a-SiO2/Si-n track template. For the first time, zinc selenide nanocrystals were obtained by chemical precipitation in an aqueous alkaline medium using sodium selenosulfate as a source of Se ions. The deposition was carried out at a temperature of t = 75°C for 40 min. The morphology was observed using scanning electron microscopy, and the crystalline phase was studied using X-ray diffraction analysis. To confirm the obtained ZnSe phase by X-ray diffraction analysis, we performed elemental analysis on a TM3030 scanning electron microscope. The crystalline phase of the sample is a cubic structure (sphalerite) with space group F-43m. The unit cell parameters are: a = 5.592081 Å and corresponds to the results of other works.

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Section: Introductionmentioning

confidence: 99%

Creation of ZnSe nanoclusters in a silicon dioxide track template on silicon

Akylbekovа¹,

Baimukhanov²,

Dauletbekova³

2022

8th International Congress on Energy Fluxes and Radiation Effects

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“…Consequently, there are already numerous reported applications based on ZnSe thin films, such as LEDs [7,8], infrared devices [9,10], diodes [11], photodetectors [12], lasers [13], sensors [14], and solar cells [15], to mention only a few. Various techniques have been used to prepare ZnSe thin films including vacuum thermal evaporation [16][17][18], chemical bath deposition [19][20][21], chemical vapor deposition [22], sintering [23], close-spaced sublimation [24], electrodeposition [25], molecular beam epitaxy [26], laser deposition [27], or RF magnetron sputtering [9,28,29]. Regarding the use of ZnSe thin films in solar cells technology, among the Cd-free buffer layers, ZnSe is one of the most important candidates to replace cadmium sulfide (CdS) as a window material for solar cells.…”

Section: Introductionmentioning

confidence: 99%

Effect of RF Power on the Physical Properties of Sputtered ZnSe Nanostructured Thin Films for Photovoltaic Applications

et al. 2021

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Zinc selenide (ZnSe) thin films were deposited by RF magnetron sputtering in specific conditions, onto optical glass substrates, at different RF plasma power. The prepared ZnSe layers were afterwards subjected to a series of structural, morphological, optical and electrical characterizations. The obtained results pointed out the optimal sputtering conditions to obtain ZnSe films of excellent quality, especially in terms of better optical properties, lower superficial roughness, reduced micro-strain and a band gap value closer to the one reported for the ZnSe bulk semiconducting material. Electrical characterization were afterwards carried out by measuring the current–voltage (I-V) characteristics at room temperature, of prepared “sandwich”-like Au/ZnSe/Au structures. The analysis of I-V characteristics have shown that at low injection levels there is an Ohmic conduction, followed at high injection levels, after a well-defined transition voltage, by a Space Charge Limited Current (SCLC) in the presence of an exponential trap distribution in the band gap of the ZnSe thin films. The results obtained from all the characterization techniques presented, demonstrated thus the potential of ZnSe thin films sputtered under optimized RF plasma conditions, to be used as alternative environmentally-friendly Cd-free window layers within photovoltaic cells manufacturing.

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