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The mechanisms controlling the growth rate and composition of epitaxial CdTe and CdZnTe films were studied. The films were grown by isothermal closed space configuration technique. A GaAs 100 substrate was exposed sequentially to the…

应用物理 · 物理学 2019-10-09 E. M. Larramendi , O. de Melo , M. Hernández Vélez , M. C. Tamargo

Thin films of CdTe were deposited on glass substrates by thermal evaporation. From the XRD measurements itis found that the films are of zinc-blende-type structure. Transmittance, absorption, extinction, and refractive coefficients are…

Tin Selenide (SnSe) thin films were grown onto glass and alumina substrates by Chemical Vapor Deposition (CVD) method. The structural, micro-structural and morphological characterizations of the as grown thin films were investigated using…

Ca- and Zn-subsituted Y1-xCaxBa2(Cu1-yZny)O7-delta (x = 0, 0.05 and y = 0, 0.02, 0.04, 0.05) thin films were grown on SrTiO3 (100) substrates using the pulsed laser deposition (PLD) technique. Effects of various growth parameters on the…

超导电性 · 物理学 2009-11-10 S. H. Naqib , R. A. Chakalov , J. R. Cooper

CdTe and CdS are emerging as the most promising materials for thin film photovoltaics in the quest of the achievement of grid parity. The major challenge for the advancement of grid parity is the achievement of high quality at the same time…

CdTe is the most commercially successful thin-film photovoltaic technology to date. The recent development of Se-alloyed CdSe$_{x}$Te$_{1-x}$ layers in CdTe solar cells has led to higher device efficiencies, due to a lowered bandgap…

材料科学 · 物理学 2023-10-11 Alan R Bowman , Jacob J Leaver , Kyle Frohna , Samuel D Stranks , Giulia Tagliabue , Jon D Major

We study by photoacoustic spectroscopy the band--gap shift effect of CdS films. The CdS films were grown by chemical bath deposition and exposed to different annealing atmospheres over a range of temperature in which the sample structure is…

凝聚态物理 · 物理学 2007-05-23 S. A. Tomas

Pulsed laser deposition from a Nd:YAG laser was employed in production of hundreds of nanometer thick quasicrystalline Ti-Zr-Ni films on glass substrate. The influence of deposition temperature Ts on the structure, morphology and…

材料科学 · 物理学 2020-10-26 Valerie Brien , A. Dauscher , P. Weisbecker , J. Ghanbaja , F Machizaud

The preparation method of thermoelectric PbTe-CdTe semiconductor nanocomposite in the form of a bulk material doped with Bi, I or Na, intended for production the mid-temperature thermoelectric energy generators is presented. The method…

材料科学 · 物理学 2023-06-16 M. Szot , K. Dybko , A. Mycielski , A. Reszka , R. Minikayev , P. Dziawa , T. Story

This study explores the suitability of semi-insulating compounds, specifically (Cd,Mn)Te and (Cd,Mn)(Te,Se), as materials for room temperature X-ray and gamma-ray detectors. These compounds were grown using the Bridgman method, known for…

Thin films of polycrystalline $\beta$-Mn structure CoZn have been grown on thermally oxidized Si substrates by co-sputtering from elemental targets followed by annealing. A range of films grown with variable Co deposition power and fixed Zn…

材料科学 · 物理学 2023-11-20 M. Dearg , G. Burnell , S. Langridge , C. H. Marrows

We report molecular beam epitaxial growth of a SnTe (111) layer on a CdTe template, fabricated by depositing it on a GaAs (111)A substrate, instead of BaF$_2$ which has been conventionally used as a substrate. By optimizing temperatures for…

材料科学 · 物理学 2016-09-21 Ryo Ishikawa , Tomonari Yamaguchi , Yusuke Ohtaki , Ryota Akiyama , Shinji Kuroda

Manganese-doped zinc sulfide nanocrystalline thin films were synthesized using a low-temperature chemical bath deposition and deposited on glass substrates for controlled durations using triethanolamine (TEA) as a complexing and capping…

材料科学 · 物理学 2025-11-25 Himal Pokhrel , Urvashi Verma

A new method for continuous compositional-spread (CCS) thin-film fabrication based on pulsed-laser deposition (PLD) is introduced. This approach is based on a translation of the substrate heater and the synchronized firing of the excimer…

材料科学 · 物理学 2009-11-10 H. M. Christen , C. M. Rouleau , I. Ohkubo , H. Y. Zhai , H. N. Lee , S. Sathyamurthy , D. H. Lowndes

The electrical conductivity of a CdS thin film, controlled by grain structures is essential to enhance its photoconductivity to be able to be fit as a window material in CdS/CdTe heterojunction solar cell. In order to characterize a thin…

材料科学 · 物理学 2016-09-21 Rezwanur Rahman , John A. Scales

CdTe has been a special semiconductor for constructing the lowest-cost solar cells and the CdTe-based Cd1-xZnxTe alloy has been the leading semiconductor for radiation detection applications. The performance currently achieved for the…

Physical vapor high-temperature deposition of CdTe thin films is one of the main methods for preparing high-efficiency CdTe solar cells, but high-temperature deposition also has an impact on the internal structure of the film. The…

材料科学 · 物理学 2023-08-09 Wenxiong Zhao , Yufeng Zhang

g-C3N4 is a novel semiconductor photocatalyst material; however, the low specific surface area and rapid carrier compliance hinder its photocatalytic performance. On the other hand, the synthesis of 2D g-C3N4 with high crystallinity remains…

应用物理 · 物理学 2023-06-21 Ying Du , Meng Wu , Hui-Qiong Wang , Junyong Kang

We investigate the synthesis of kesterite Cu2ZnSnS4 (CZTS) polycrystalline thin films using cosputtering from binary sulfide targets followed by annealing in sulfur vapor at 500 {\deg}C to 650 {\deg}C. The films are the kesterite CZTS phase…

材料科学 · 物理学 2011-10-11 W. M. Hlaing OO , J. L. Johnson , A. Bhatia , E. A. Lund , M. M. Nowell , M. A. Scarpulla

We report growth and characterization of epitaxial $\alpha$-Sn thin films grown on CdTe(111)B. Noninvasive techniques verify the film's pseduomorphic growth before fabrication of magnetotransport devices, overcoming ex-situ obstacles on…

强关联电子 · 物理学 2020-02-19 Owen Vail , Patrick Taylor , Patrick Folkes , Barbara Nichols , George de Coster
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