Influence of the electrochemical processing parameters on the photocurrent–voltage conversion characteristics of copper bismuth selenide photoactive films

Author:

Eraky M. S.,Sanad Moustafa M. S.,El-Sayed E. M.,Shenouda Atef Y.,El-Shereafy El-Sayed

Abstract

AbstractThin-film deposition using electrodeposition techniques is highly preferable because of its capability to deposit multi-component alloys at low temperatures. In this regard, copper bismuth selenide (CBSe) films were electrodeposited in two various ways, simultaneous and successive electrodeposition processes. The structural and morphological characterizations of the obtained films were performed using X-ray diffraction (XRD), scanning electron microscope (SEM), energy-dispersive X-ray analysis (EDX), and X-ray Photoelectron Spectrometer (XPS). The CBSe alloy films formed by successive electrodeposition revealed better crystallinity and more regular morphology in comparison with simultaneous electrodeposited CBSe films. The prepared CBSe film by successive electrodeposition exhibited high light absorptivity and low band gap energy value (Eg = 1.65 eV) resulting in a higher photoelectrical response. The crystallization of the ternary CBSe film electrodeposited via successive routine obeyed the instantaneous nucleation mechanism, while the CBSe film obtained by simultaneous electrodeposition agreed with the progressive nucleation mechanism. Successive electrodeposition of ternary CBSe alloy film achieved greater values of photocurrent–voltage conversion efficiency (η = 1.26%) in photoelectrochemical systems.Graphic abstract

Funder

Central Metallurgical Research and Development Institute

Publisher

Springer Science and Business Media LLC

Subject

General Physics and Astronomy,Fluid Flow and Transfer Processes

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3