Enhanced interfacial characteristics of perovskite solar cell with multi-functional organic hole-selective interlayer
- Authors
- Park, Hansol; Kye, Hyojin; Jeong, Bum Ho; Heo, Jihyeon; Hwang, Sooji; Kim, Bong-Gi; Park, Hui Joon
- Issue Date
- Jan-2022
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Perovskite solar cell; Interface; Defect-passivation; Organic hole-selective interlayer; Nickel oxide; Material design
- Citation
- DYES AND PIGMENTS, v.197, pp.1 - 10
- Indexed
- SCIE
SCOPUS
- Journal Title
- DYES AND PIGMENTS
- Volume
- 197
- Start Page
- 1
- End Page
- 10
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/139902
- DOI
- 10.1016/j.dyepig.2021.109837
- ISSN
- 0143-7208
- Abstract
- In solution-processed organic and inorganic halide perovskite solar cells (PSCs), managing the interfacial characteristics between multi-layers has been a crucial factor in determining their performance and stability. Here, we newly design an indolocarbazole-based organic molecule that can enhance the interfacial properties between a solution-processed NiOx hole transport layer and perovskite in p-i-n planar PSC. Especially, to be beneficial to this architecture, its visible transparency and energy level are optimized, and its chemical structure is crosslinked for better solution processability as a hole-selective interlayer. More importantly, it can passivate the defects in the perovskite film, consequently enhancing the quality of the film and suppressing non-radiative recombination in the devices. With this interface modification, we confirm that the performance and stability of PSC devices are largely enhanced.
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