Study of precursor conditioning for high efficiency organic-inorganic hybrid perovskite solar cells = 전구체 컨디셔닝이 고효율 유무기 하이브리드 페로브스카이트 태양전지에 미치는 영향

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The research of inorganic-organic hybrid lead halide perovskite solar cells have been a center topic on photovoltaic field. Several aspects that make perovskite solar cells competitive to conventional silicon solar cells are high performance, ease of fabrication, tunability of bandgap, and low manufacturing cost. One of the widely used fabrication process in perovskite solar cell is via solution process. However, the major concern in solution process is the reproducibility of the solar cells. Here, we studied the effects of how precursor solutions affected the device performance. By using Dynamic Light Scattering (DLS), we have indicated that the triple-cation lead mixed halide perovskite have a tendency to aggregate into two aggregates as the precursor solution further aged, namely FA-rich and Cs-rich: Whereas in single cation lead halide perovskite, the existence of aggregates does not affect the device performance. In addition, we have showed the bandgap tuning of triple-cation lead mixed halide perovskite in order to create a wide-bandgap perovskite solar cells. With optimization via halide intercalation, we have point out the composition that is suitable for top-cells tandem solar cells. A preliminary device efficiency result was reported. Despite the successful device fabrication, further efficiency enhancement and device stability must be researched.
Advisors
Shin, Byungharesearcher신병하researcher
Description
한국과학기술원 :신소재공학과,
Publisher
한국과학기술원
Issue Date
2018
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 신소재공학과, 2018.8,[vi, 62 p. :]

Keywords

Inorganic-organic hybrid▼aperovskite▼asolar cells▼aprocess conditions▼acolloidal chemistry▼awide-bandgap▼atandem solar cells; 무유기 하이브리드▼a페로브스카이트▼a태양 전지▼a공정 컨디셔닝▼a콜로이드 화학▼a높은 밴드 갭▼a탠덤 태양 전지

URI
http://hdl.handle.net/10203/266471
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=828542&flag=dissertation
Appears in Collection
MS-Theses_Master(석사논문)
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