UFAS1 PLATFORM EVENTS, International Conference on Materials Science ICMS2018

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Study of the CISe absorbent layer deposited by Spray pyrolysis on glass and stainless steel 316 substrates
Bachir Eddine MESSAID

Last modified: 2018-08-01

Abstract


Currently, chalcopyrite CuInSe2 (CISe) solar cells based on thin films have been imposed in the photovoltaic market, especially those deposited on Glass substrate [1], but the use of thise solar cells is limited to regular support, In order to widen the range of its application, a stainless steel 316 is used as substrate with a glass substrates, a comparative study was carried out. In this work, the spray pyrolysis presents the technique of elaboration, the CISe layers deposited on Glass have been optimized, the deposited layers are heated at 550 for 10 min, One can remark the presence of four peaks in all diffractograms, indexed as (112), (220), (400), and (424) according to the JCPDS 23-0209 file of CISe chalcopyrite [2,3], This confirms that films are polycrystalline, however this crystallization is totally lost by using the stainless steel 316 substrate, that the peaks of Iron and stainless steel 316 were found, these results are confirmed by the EDS analysis which shows a non-stoichiometric CISe layer at 550 C, the ratio Se / Cu = 1, However, a different surface observed on the images SEM, The films surface deposited on stainless steel 316 looks like a spider canvas, the CISe grains are bigger on stainless steel 316 (900 nm to 1200 nm) than those observed on glass (200 nm to 400 nm).