Thin film solar cells based on the ternary compound Cu2SnS3

Berg, Dominik, Djemour, Rabie, Gütay, Levent, Zoppi, Guillaume, Siebentritt, Susanne and Dale, Phillip (2012) Thin film solar cells based on the ternary compound Cu2SnS3. Thin Solid Films, 520 (19). pp. 6291-6294. ISSN 0040-6090

PDF (Full text)
Berg_2012_accepted_online_version.pdf - Accepted Version

Download (358kB) | Preview
Official URL:


Alongside with Cu2ZnSnS4 and SnS, the p-type semiconductor Cu2SnS3 also consists of only Earth abundant and low-cost elements and shows comparable opto-electronic properties, with respect to Cu2ZnSnS4 and SnS, making it a promising candidate for photovoltaic applications of the future. In this work, the ternary compound has been produced via the annealing of an electrodeposited precursor in a sulfur and tin sulfide environment. The obtained absorber layer has been structurally investigated by X-ray diffraction and results indicate the crystal structure to be monoclinic. Its optical properties have been measured via photoluminescence, where an asymmetric peak at 0.95 eV has been found. The evaluation of the photoluminescence spectrum indicates a band gap of 0.93 eV which agrees well with the results from the external quantum efficiency. Furthermore, this semiconductor layer has been processed into a photovoltaic device with a power conversion efficiency of 0.54%, a short circuit current of 17.1 mA/cm2, an open circuit voltage of 104 mV hampered by a small shunt resistance, a fill factor of 30.4%, and a maximal external quantum efficiency of just less than 60%. In addition, the potential of this Cu2SnS3 absorber layer for photovoltaic applications is discussed.

Item Type: Article
Uncontrolled Keywords: Cu2SnS3, ternary compound, Cu–Sn–S, kesterite, thin film solar cell, electrodeposition
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Sarah Howells
Date Deposited: 06 Jul 2012 14:53
Last Modified: 17 Dec 2023 16:18

Actions (login required)

View Item View Item


Downloads per month over past year

View more statistics