화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2014년 가을 (11/12 ~ 11/14, 엑스코(대구))
권호 18권 2호
발표분야 에너지저장변환-포스터
제목 Secondary phases at back contact interface of Cu2ZnSnS4 solar cells
초록 We have investigated CZTS cells with five different sulfurization temperatures. In order to locate the ZnS by Raman spectroscopy in different depths, the samples were dimpled down with a dimpler. From the Raman results, we identified all layers; the ZnO-window layer, the CdS-buffer layer, the CZTS-absorber layer, and the Mo-back contact layer. ZnS is found in the absorber layer even though it is not probed at the surface. The distribution of the ZnS varies among different samples, especially near the back contact. ZnS and MoS2 were found together in the lower and higher sulfurization temperature samples, and the phases existed separately in the medium sulfurization temperature sample, which gave the best cell efficiency of 7.5%.
저자 남다현1, 심준형2, 양기정2, 강진규2, 박상욱3, 전찬욱3, 정현식1
소속 1서강대, 2DGIST, 3영남대
키워드 thin film solar cell; CZTS; Raman spectroscopy
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