Low-Temperature Solution-Processed Kesterite Solar Cell Based on in Situ Deposition of Ultrathin Absorber Layer

Journal article
(Original article)


Publication Details

Author(s): Hou Y, Azimi SH, Gasparini N, Savador M, Chen W, Khanzada LS, Brandl M, Hock R, Brabec C
Journal: ACS Applied Materials and Interfaces
Publication year: 2015
Volume: 7
Journal issue: 38
Pages range: 21100-21106
ISSN: 1944-8252
Language: English


Abstract


The production of high-performance, solution-processed kesterite Cu2ZnSn(Sx,Se1-x)4 (CZTSSe) solar cells typically relies on high-temperature crystallization processes in chalcogen-containing atmosphere and often on the use of environmentally harmful solvents, which could hinder the widespread adoption of this technology. We report a method for processing selenium free Cu2ZnSnS4 (CZTS) solar cells based on a short annealing step at temperatures as low as 350 °C using a molecular based precursor, fully avoiding highly toxic solvents and high-temperature sulfurization. We show that a simple device structure consisting of ITO/CZTS/CdS/Al and comprising an extremely thin absorber layer (∼110 nm) achieves a current density of 8.6 mA/cm2. Over the course of 400 days under ambient conditions encapsulated devices retain close to 100% of their original efficiency. Using impedance spectroscopy and photoinduced charge carrier extraction by linearly increasing voltage (photo-CELIV), we demonstrate that reduced charge carrier mobility is one limiting parameter of low-temperature CZTS photovoltaics. These results may inform less energy demanding strategies for the production of CZTS optoelectronic layers compatible with large-scale processing techniques.



FAU Authors / FAU Editors

Azimi, Seyed Hamed Dr.
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Brabec, Christoph Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Brandl, Marco
Lehrstuhl für Kristallographie und Strukturphysik
Chen, Wei
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Gasparini, Nicola
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Hock, Rainer Prof. Dr.
Professur für Kristallographie und Strukturphysik
Hou, Yi Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Khanzada, Laraib Sarfraz
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)


How to cite

APA:
Hou, Y., Azimi, S.H., Gasparini, N., Savador, M., Chen, W., Khanzada, L.S.,... Brabec, C. (2015). Low-Temperature Solution-Processed Kesterite Solar Cell Based on in Situ Deposition of Ultrathin Absorber Layer. ACS Applied Materials and Interfaces, 7(38), 21100-21106. https://dx.doi.org/10.1021/acsami.5b04468

MLA:
Hou, Yi, et al. "Low-Temperature Solution-Processed Kesterite Solar Cell Based on in Situ Deposition of Ultrathin Absorber Layer." ACS Applied Materials and Interfaces 7.38 (2015): 21100-21106.

BibTeX: 

Last updated on 2018-19-04 at 03:39