Indium doping on the structural, surface and optical properties of CdS thin films prepared by ultrasonic spray pyrolysis method

Yıl 2017, Cilt: 19 Sayı: 2, 264 - 274, 10.10.2017

Şilan Baturay

https://doi.org/10.25092/baunfbed.342553

Cited By: 3

Öz

CdS nanostructures are important and useful
materials for photovoltaic applications. In this paper, pure CdS and In doped
CdS (CdS:In) thin films were fabricated on soda lime glass substrate using
ultrasonic spray pyrolysis (USP) method, to investigate the effect In
concentration on the structural behavior, surface and optical properties of the
CdS thin films by X-ray diffraction (XRD), Atomic Force Microscopy (AFM) and
Ultraviolet–visible (Uv-vis) spectrophotometry. X-ray diffraction patterns of
the pure and In doped CdS films indicated that pure CdS film had a mixed of
cubic and hexagonal structure with polycrystalline nature while In doped CdS
had a hexagonal structure with polycrystalline nature. Increasing the In doping
ratio improve the (002) preferential orientation. The optical properties of the
In-doped CdS and pure CdS films showed that the energy band gap of the In-doped
CdS is a slightly lower than the energy band gap of the pure CdS film. The
surface properties of the films showed that all thin films are compact and
uniform.

Anahtar Kelimeler

CdS, Indium doping, Ultrasonic spray pyrolysis, structural properties

Ultrasonik sprey piroliz yöntemiyle hazırlanan CdS ince filmlerin yapı, yüzey ve optik özelliklerine In katkısının etkisi

Öz

CdS nanoyapılar fotovoltaik
uygulamalar için önemli ve yararlı malzemelerdir. Bu çalışmada, katkısız CdS ve
In katkılı CdS (CdS: In) ince filmler ultrasonik sprey piroliz (USP) yöntemi
kullanılarak cam alttaş üzerine büyütüldü ve X ışını kırınımı (XRD), Atomik
Kuvvet Mikroskopisi (AFM) ve spektrofotometri ile CdS ince filmlerin yapısal
davranışları, yüzeyleri ve optik özellikleri üzerine konsantrasyonun etkisini
araştırıldı. Saf ve In katkılı CdS filmlerin X-ışını kırınım desenleri, saf CdS
filmin polikristal yapıya sahip bir kübik ve altıgenken, In katkılı CdS'nin
polikristal yapılı altıgen bir yapıya sahip olduğunu görüldü. In katkılama
oranının arttırılması tercihli yönelimi (002) artırdı. In-katkılı CdS ve saf
CdS filmlerin optik özellikleri In-katkılı CdS'nin enerji bant aralığının saf
CdS filmin enerji bant aralığından biraz daha düşük olduğunu görüldü. Filmlerin
yüzey özelliklerinden tüm ince filmlerin kompakt ve düzgün olduğunu
görülmektedir.

Anahtar Kelimeler

CdS, İndiyum katkılama, Ultrasonik sprey piroliz, yapısal özellikler

Kaynakça

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