Interface-modified NiMgO <sub> <i>x</i> </sub> layers with dibenzocarbazole molecules for high-efficiency perovskite light-emitting diodes
Nickel magnesium oxide is a stable hole injection layer for PeLEDs but suffers from poor hole injection and interfacial quenching. Here, we introduce [4-(7<i>H</i>-dibenzo[c,g]carbazol-7-yl)butyl]phosphonic acid (4PADCB) as an interlayer that passivates interfacial defects, suppresses luminescence quenching, and lowers hole injection barriers, boosting external quantum efficiency from 5.5% to 14.4%.
Authors
- Seungbum Hong (ORCID: https://orcid.org/0000-0002-2667-1983)
- Jun‐Seo Lee (ORCID: https://orcid.org/0000-0002-5796-2417)
- Seungmin Shin
- William W. Yu (ORCID: https://orcid.org/0000-0001-5354-6718)
- Himchan Cho (ORCID: https://orcid.org/0000-0001-6372-5787)
- In Hye Kwak (ORCID: https://orcid.org/0000-0003-4697-0566)
- Hyungdoh Lee
- Hyung Joong Yun (ORCID: https://orcid.org/0000-0002-1282-5902)
Institutions
- Korea Advanced Institute of Science and Technology (KR)
- Korea Basic Science Institute (KR)
Publication Details
- Journal
- Materials Horizons
- Published
- 2025-11-25
- DOI
- https://doi.org/10.1039/d5mh01949d
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00