STRUCTURAL, OPTICAL AND ELECTRICAL PROPERTIES OF NANOCRYSTALLINE CdS THIN FILMS GROWN BY CHEMICAL BATH DEPOSITION METHOD

نویسندگان

  • R. DEMIR
  • F. GODE
  • Mehmet Akif Ersoy
چکیده

Cadmium sulfide thin films are prepared on glass substrates at 82 °C for 1 hour by chemical bath deposition. After deposition, the films are annealed at 480 °C for 1 hour in air atmosphere. Both as-grown and annealed films are characterized by X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy, optical absorption spectroscopy and current voltage characteristics and their structural, morphological, compositional, optical and electrical properties are investigated. The X-ray diffraction patterns of deposited films show the formation of polycrystalline of CdS with both cubic and hexagonal structure. Moreover, after the thermal treatment of 480 °C, they mostly turn into polycrystalline CdO with cubic structure. The grain size of the deposited film decreases approximately from 10−20 nm to 2-3.5−5.5 nm by annealing. The band gap energy of the films is determined for the direct transitions of 2.15 eV and increased to 2.25 eV by the thermal treatment. After thermal process, the electrical conductivity of the films calculated from the current–voltage characteristic in the dark increases from 5.482×10 –10

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Investigations on structural and electrical properties of Cadmium Zinc Sulfide thin films

Nowadays, II – IV group semiconductor thin films have attracted considerable attention from the research community because of their wide range of application in the fabrication of solar cells and other opto-electronic devices. Cadmium zinc sulfide (Zn-CdS) thin films were grown by chemical bath deposition (CBD) technique. X-ray diffraction (XRD) is used to analyze the structure and crystallite ...

متن کامل

Investigations on structural and electrical properties of Cadmium Zinc Sulfide thin films

Nowadays, II – IV group semiconductor thin films have attracted considerable attention from the research community because of their wide range of application in the fabrication of solar cells and other opto-electronic devices. Cadmium zinc sulfide (Zn-CdS) thin films were grown by chemical bath deposition (CBD) technique. X-ray diffraction (XRD) is used to analyze the structure and crystallite ...

متن کامل

Effect of Annealing Temperature on Structural, Optical and Electrical Properties of Pure CdS Thin Films Deposited by Spray Pyrolysis Technique

Effect of annealing temperature on the properties of CdS thin films are carried out in this work. Nanocrystalline cadmium sulphide (CdS) thin films were prepared using spray pyrolysis deposition (SPD) technique and the structural, optical and electrical properties were investigated for different annealing temperature (as deposited, 300, 400 & 500 C). The surface morphology and compositional pro...

متن کامل

Effect Of Substrates And Film Thickness On The Properties Of Zno Thin Films Grown By Chemical Bath Deposition

Zinc oxide(ZnO) is a promising material in nanotechnology applications, for example in nano-electronics and nanorobotic technology. The objectives foe our work are to study the effect of thickness on the structural, optical, electrical and mechanical properties and various susbstrates have been investigated of ZnO thin films. ZnO thin films were coated using chemical bath technique for various ...

متن کامل

EFFECT OF ANNEALING TIME AND TEMPERATURE ON STRUCTURAL, OPTICAL AND ELECTRICAL PROPERTIES OF CdS FILMS DEPOSITED BY CBD

Cadmium sulphide (CdS) thin films were deposited onto glass substrates by chemical bath deposition (CBD) from a bath containing cadmium acetate, ammonium acetate, thiourea and ammonium hydroxide. The CdS films were annealed in air at various temperatures (350, 400 and 450 °C) for 60 minutes, and times (5, 15, 30, 45 and 60 minutes) at constant temperature (400 °C) in order to investigate the in...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2015