CuIn (Se,S)2 based photovoltaic cells from one-step electrodeposition

International Journal of Physical Sciences

C. Sene¹ 

关键词: CuInSe2;    CuIn(Se;    S)2;    absorber layers;    electrodeposition;    pHydrion buffer;    photovoltaic cells.;   

DOI  :  

学科分类：物理（综合）

来源: Academic Journals

【 摘 要 】

The formation of CuIn (Se,S)2films for application in photovoltaic devices by post-deposition treatments of electrodeposited pre-cursors is described. The polycrystalline CuInSe2(CIS) pre-cursor layers were prepared by the one-step electrodeposition (ED) method on molybdenum-coated soda lime (SL) glass substrates. Growth was performed from low concentration buffered baths containing CuSO4, In2(SO4)3and SeO2with Li2SO4electrolyte. As deposited films were amorphous and required recrystallization by annealing in H2Se or H2S prior to device processing. Reaction in flowing H2Se produced random oriented CuInSe2films which resulted in devices with low conversion efficiencies of only~3%. Annealing in flowing H2S led to partial replacement of the selenium in the CuInSe2film with sulfur, determined by XRD and EDS to produce CuIn(Se,S)2quaternary alloys. Devices processed from CuIn(Se,S)2films showed improved J-V characteristic with conversion efficiencies of~6.4%.

【 授权许可】

CC BY