Development of new isoindigo-based small molecule additive for the enhancement of all-polymer solar cell performances = 전-고분자 태양전지 성능향상을 위한 새로운 아이소인디고 기반의 저분자 첨가제 개발

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Recently, the problem of device stability has become an important issue for the commercialization of organic solar cells. The stability problems arise from the reduction of device performance due to various causes such as heat, light, moisture, and oxygen under the condition that the device is driven, and the all-polymer solar cells (all-PSCs) show excellent characteristics in terms of stability. Especially, the mechanical stability of the active layer is very important for the application to the flexible device, and unlike the fullerene-based organic solar cells which is occurred crack even at a low tensile strain, the all-PSCs have excellent mechanical properties. However, all-PSCs show relatively low power conversion efficiency (PCE) of 6 to 8% compared with the fullerene-based organic solar cells showing more than 10% PCE. In this thesis, we introduced a new small molecule additive into all-PSCs, and investigated the electrical properties, morphological properties, and optical properties of the all-PSCs. Finally, based on the results, we successfully enhanced performance of all-PSCs by control of the crystalline packing structure of polymer blends.
Advisors
Kim, Bumjoonresearcher김범준researcher
Description
한국과학기술원 :생명화학공학과,
Publisher
한국과학기술원
Issue Date
2017
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 생명화학공학과, 2017.2,[iv, 47 p. :]

Keywords

all-polymer solar cell; small molecule additive; morphology; crystalline enhancer; phase separation; 전-고분자 태양전지; 저분자 첨가제; 나노구조; 결정성; 상분리

URI
http://hdl.handle.net/10203/243087
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=675585&flag=dissertation
Appears in Collection
CBE-Theses_Master(석사논문)
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