(The) effect of interface passivation on structural and electric properties in kesterite $Cu_2ZnSnSe_4$ (CZTS) thin film solar cells = $Cu_2ZnSnSe_4$ (CZTS) 상하부 계면의 패시베이션과 이를 이용한 태양 전지의 구조적, 전기적 특성 연구

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The $Cu_2ZnSnSe_4$ (CZTS) thin film solar cell has drawn significant attention due to its earth-abundant and non-toxic constituents as a solar cell absorber. CZTS, however, possesses intrinsic drawbacks including phase insta-bility, secondary phases, and defects that harm the device performance. Considering the ease of processing con-ditions to achieve CZTS with a pure-phase, CZTS solar cells were prepared by thermal co-evaporation. The an-nealing conditions including temperature and Se vapor were adjusted in such a way to suppress the Sn-loss and to reduce the thickness of $MoSe_2$. Also, CdS thickness was controlled to improve the incident light collection. Afterwards, we focused on passivating the interface of CZTS - both a front CZTS surface and a back CZTS/Mo interface - to reduce the interfacial recombination accounting for the large open-circuit deficit in most of CZTS solar cells. Structural and electrical properties were studied using scanning electron microscopy (SEM), energy dispersive x-ray spectroscopy (EDS), x-ray diffraction technique (XRD), J-V and external quantum efficiency measurement (EQE), and low-temperature photoluminescence (PL) analysis. The effect of interface passivation in correlation with the device performance were studied as well.
Advisors
Shin, Byungharesearcher신병하researcher
Description
한국과학기술원 :신소재공학과,
Publisher
한국과학기술원
Issue Date
2016
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 신소재공학과, 2016.2 ,[vii, 65 p. :]

Keywords

kesterite; thin film solar cells; interface passivation; 케스터라이트; 박막 태양전지; 계면 패시베이션

URI
http://hdl.handle.net/10203/221585
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=657606&flag=dissertation
Appears in Collection
MS-Theses_Master(석사논문)
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