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Defect-Passivating Organic/Inorganic Bicomponent Hole-Transport Layer for High Efficiency Metal-Halide Perovskite Device

Title
Defect-Passivating Organic/Inorganic Bicomponent Hole-Transport Layer for High Efficiency Metal-Halide Perovskite Device
Other Titles
유, 무기 정공수송층 적용으로 디펙 패시베이션을 통한 고효율의 페로브스카이트 소자
Author
이세욱
Alternative Author(s)
이세욱
Advisor(s)
박희준
Issue Date
2021. 2
Publisher
한양대학교
Degree
Master
Abstract
In this work, we introduce a bicomponent hole-transport layer, composed of inorganic NiOx and a donor−acceptor−donor (D−A−D)-structured organic small molecule, for p−i−n planar perovskite photovoltaic (PV) cells. The newly designed D−A−D organic hole-transporting material (HTM), (4′,4‴-(1,3,4-oxadiazole-2,5-diyl)bis(N,N-bis(4-methoxyphenyl)-[1,1′-biphenyl]-4-amine)), is shown to be an efficient HTM without a dopant, and methoxy functional units, further introduced to the molecules, are confirmed to be beneficial to passivate the defects in the perovskite, which improves the crystallinity of perovskite and suppresses the nonradiative recombination in the devices, consequently enhancing the performances of PV cells (over 20% efficiency from p−i−n architecture). Furthermore, the decreased defect sites along with the UV-blocking property of the HTM in p−i−n architecture are advantageous in improving the stability of the PV devices.
URI
https://repository.hanyang.ac.kr/handle/20.500.11754/159102http://hanyang.dcollection.net/common/orgView/200000485432
Appears in Collections:
GRADUATE SCHOOL[S](대학원) > ORGANIC AND NANO ENGINEERING(유기나노공학과) > Theses (Master)
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