Issue 49, 2018, Issue in Progress
From the journal:

RSC Advances

Efficient (Cu1−xAgx)2ZnSn(S,Se)4 solar cells on flexible Mo foils

Xue Yu, ORCID logo a   Shuying Cheng,*ab   Qiong Yan,a   Jinling Yu,ab   Wen Qiu,a   Zhengji Zhou,c   Qiao Zhengab  and  Sixin Wu*c  

* Corresponding authors

a College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, P. R. China
E-mail: sycheng@fzu.edu.cn

b Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou, P. R. China

c The Key Laboratory for Special Functional Materials of MOE, Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, Henan 475004, P. R. China
E-mail: wusixin@henu.edu.cn

Abstract

Cation substitution plays a crucial role in improving the efficiency of Cu2ZnSn(S,Se)4 (CZTSSe) solar cells. In this work, we report a significant efficiency enhancement of flexible CZTSSe solar cells on Mo foils by partial substitution of Cu+ with Ag+. It is found that the band gap (Eg) of (Cu1−xAgx)2ZnSn(S,Se)4 (CAZTSSe) thin films can be adjusted by doping with Ag with x from 0 to 6%, and the minimum Eg is achieved with x = 5%. We also found that Ag doping can obviously increase the average grain size of the CAZTSSe absorber from 0.4 to 1.1 μm. Additionally, the depletion width (Wd) at the heterojunction interface of CAZTSSe/CdS is found to be improved. As a result, the open-circuit voltage deficit (Voc,def) is gradually decreased, and the band tailing is suppressed. Benefiting from the enhanced open-circuit voltage (Voc), the power conversion efficiency (PCE) is successfully enhanced from 4.34% (x = 0) to 6.24% (x = 4%), and the Voc,def decreases from 915 to 848 mV.

Graphical abstract: Efficient (Cu1−xAgx)2ZnSn(S,Se)4 solar cells on flexible Mo foils

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/C8RA04958K
Article type
Paper
Submitted
10 Jun 2018
Accepted
13 Jul 2018
First published
03 Aug 2018
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2018,8, 27686-27694

Permissions

Request permissions

Efficient (Cu1−xAgx)2ZnSn(S,Se)4 solar cells on flexible Mo foils

X. Yu, S. Cheng, Q. Yan, J. Yu, W. Qiu, Z. Zhou, Q. Zheng and S. Wu, RSC Adv., 2018, 8, 27686 DOI: 10.1039/C8RA04958K

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements