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2 edition of Electronic and optical properties of thin films of HgZnTe and CdS for solar cell devices found in the catalog.

Electronic and optical properties of thin films of HgZnTe and CdS for solar cell devices

Shaheen Arshed

Electronic and optical properties of thin films of HgZnTe and CdS for solar cell devices

by Shaheen Arshed

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Published .
Written in English


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StatementShaheen Arshed.
ID Numbers
Open LibraryOL13939626M

CdSe and CdTe are being used as the window and absorber layer, respectively, in photovoltaic devices. 2 Additionally, CdTe and CdSe are used in various other devices, such as thin film transistors, solar cell-based devices, photoconductors, gas sensors, acousto-optical devices and photographic photoreceptors, 3 and also in antibacterial. No CdS: Used in photoresistors and solar cells; CdS/Cu 2 S was the first efficient solar cell. Used in solar cells with CdTe. Common as quantum dots. Crystals can act as solid-state lasers. Electroluminescent. When doped, can act as a phosphor. No CdTe: Used in solar cells with CdS. Used in thin film solar cells and other cadmium.

A collection of resources for the photovoltaic educator. As solar cell manufacturing continues to grow at a record-setting pace, increasing demands are placed on universities to educate students on both the practical and theoretical aspects of photovoltaics.   Thin Film Deposition manufacturing processes are at the heart of today’s semiconductor industry, solar panels, CDs, disk drives, and optical devices industries. Thin Film Deposition is usually divided into two broad categories – Chemical Deposition .

IJRRAS 12 (3) September Oladiran & al. Properties of Cbd Grown Cds Thin Films withdrawn, rinsed with distilled water, and drip dried in air. CdS thin films were observed to be deposited on the glass substrate with nm thickness were uniform, well adherent to the substrates and yellow in colour. Thin films, Electronic and Optoelectronic Devices P-TF-1 Schottky Barrier Height Formation and Electrical Characterization of Diodes Based on TiN/p-Si() A. Douhin, BGU P-TF-2 Template Growth of PbS, CdS and ZnS Nanocrystals on Polydiacetylene Langmuir Film: .


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Electronic and optical properties of thin films of HgZnTe and CdS for solar cell devices by Shaheen Arshed Download PDF EPUB FB2

Properties of the CdS thin films strongly depend on the deposition techniques and the substrate temperatures [8]. Evaporated CdS thin films prepared for the solar cell applications usually have resistivities in the range of cm) and carrier concentrations in the range of to cm3 [1].

The films are always n-type with a. Structural and Optical Properties of CdS Thin films for the Solar Cell Applications CH.

1Ashok, K. 2Venkateswara Rao, CH. Shilpa Chakra3, K. Ganapathi Rao4 1,2,3 Centre for Nano Science and Technology,Institute of Jawaharlal Nehru Technological University Hyderabad, Kukatpally, Hyderabad –Telangana, India.

Properties of CdS thin films were investigated applying atomic force microscopy (AFM) and Raman spectroscopy. CdS thin films were prepared by using thermal evaporation technique under base. Fig. 1 shows the transmission spectra of CdS films, it can be seen that the films present high transmission (72–85%) in the visible range which is good for opt-electronic devices, especially for solar cell window layers.

and have sharp fall at the band edge, which is an indication of good crystallinity of CdS in the by:   Among all the processes, CBD is the very common process to make very thin CdS thin film for solar cells and RF sputtering is used to get CdS thin films with very smooth surface.

However, all the deposition process has a significant effect on structural, electrical and optical properties of CdS thin by: The crystal structure, electrical and optical properties of ZnSe thin films deposited on an In2O3:Sn (ITO) substrate are evaluated for their suitability as the window layer of CdTe thin film solar.

The crystal structure, electrical and optical properties of ZnSe thin films deposited on an In 2 O 3:Sn (ITO) substrate are evaluated for their suitability as the window layer of CdTe thin film solar thin films of 80, 90, and nm thickness were deposited by a physical vapor deposition method on Indium tin oxide coated glass substrates.

Complex materials with plasmonic effects for optical thin film applications 6. Scattering properties of random structures in thin films 7. Optical properties of thin film materials at short wavelengths 8. Controlling thermal radiation from surfaces 9.

Color in Optical Coatings. Part 3: Novel materials for optical thin films and coatings Keywords: CdS, FTIR, photocell, spin coating, thin films 1.

Introduction: The structure of Cadmium Sulfide (CdS) is solid hexagonal or cubic crystal. Thin films of CdS can be used as window material of Cds/CdTe solar cells and other electro optical devices due to its high band gap.

CdS is a n-type yellowish semiconductor material with direct. Key words: thin film, chemical spry, optical properties Introduction Poly-CdS thin film has a band gap of ev, which causes considerable absorption of the short – wavelength region 1.

The physical parameter which influence the efficiency of the photovoltaic devices 2. Theoretical and experimental investigations in the last.

The optical and electronic properties of nanocrystalline WO 3 thin films prepared by reactive dc magnetron sputtering at different total pressures (P tot) were studied by optical spectroscopy and density functional theory (DFT) inic films prepared at low P tot show absorption in the near infrared due to polarons, which is attributed to a strained film structure.

In this chapter, we describe the usefulness of chemical bath deposition (CBD) technique to produce high-quality thin films of cadmium sulfide for large-scale applications.

In terms of operation, CBD offers unique blend of cost-effectiveness and rapid deposition rate of thin films. The book is comprised of four key parts.

Part one explores the design and manufacture of optical coatings. Part two highlights unconventional features of optical thin films including scattering properties of random structures in thin films, optical properties of thin film materials at short wavelengths, thermal properties and color effects.

Abstract. In this chapter, simulations for CuInGaSe 2 (CIGS) solar cell materials are illustrated from the viewpoint of first-principles calculations. The solar cell materials under high pressure, upon doping, the atomistic distribution in solar cell materials, and the interface in solar.

An in situ thermal annealing process (iTAP) has been introduced before the common ex situ cadmium chloride (CdCl 2) annealing to improve crystal quality and morphology of the CdTe thin films after pulsed laser deposition of CdS/CdTe heterostructures.

A strong correlation between the two annealing processes was observed, leading to a profound effect on the performance of CdS/CdTe thin film. Transparent conducting metal oxides (TCOs) combine the properties of optical transparency in the visible region with a high electrical conductivity.

They are a critical component as the window electrode in liquid crystal and electroluminescent display devices, as well as in many designs of solar cells now under development. Sn-doped In2O3 is currently the most important TCO, but it.

Zinc oxide (ZnO) belongs to the class of transparent conducting oxides that can be used as transparent electrodes in electronic devices or heated windows.

In this book the material properties of, the deposition technologies for, and applications of zinc oxide in thin film solar cells are described in a comprehensive manner. Structural, morphological, optical and electronic properties of ZnO 1/5(1). The coating usually consists of one or moreethinfilmsof thin films of material with composition and thickness chosen to give the correct optical properties through a mixture of interference and the natural optical properties of the materials.

Macleod ‐Thin Film Optics 4. Thin-film solar cells and modules differ significantly from the silicon wafer-based technology because the sunlight-absorbing compounds (so-called “absorbers”) are direct semiconductors with high optical absorption coefficients, enabling complete absorption of the incoming sunlight within a thickness of less than 3 μm.

The materials are. Chemistry and Materials Research ISSN (Print) ISSN (Online) Vol.3 No, Effect of zinc on structural and some optical properties of CdS thin films. A thin film is a layer of material ranging from fractions of a nanometer to several micrometers in thickness.

The controlled synthesis of materials as thin films (a process referred to as deposition) is a fundamental step in many applications. A familiar example is the household mirror, which typically has a thin metal coating on the back of a sheet of glass to form a reflective interface.A polycrystalline, thin‐film CuxS/CdS solar cell was exposed to air saturated with water vapor at temperatures between 27 and 67 °C for up to 6 1/2 h.

The short‐circuit current decreased progressiv.This book spreads the current knowledge of semiconductor physics and its applications across the scientific community and includes in particular the latest developments on III-Nitrides: Materials & Devices, Compound Semiconductors, VLSI Technology, Optoelectronics, Sensors, and Photovoltaics.