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journal article·2025-01Open access

Efficient Polycrystalline Single‐Cation Perovskite Light‐Emitting Diodes by Simultaneous Intracrystal and Interfacial Defect Passivation (Small 1/2025)

Hobeom Kim, Jung‐Min Heo, Christoph Wolf, Young‐Hoon Kim, Seong‐Chul Lee, Eojin Yoon, Geon‐Hui Lee, Kyung Yeon Jang, Junmo Park, Joo Sung Kim, Min‐Ho Park, Su‐Hun Jeong, Himchan Cho, Tae‐Hee Han, Emad Oveisi, Mohammad Khaja Nazeeruddin, Tae‐Woo Lee

Small· Volume 21· Issue 1
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Source abstract

Abstract

Light-Emitting Diodes In article number 2405272, Tae-Woo Lee and co-workers report on a high-performance perovskite light-emitting diode device achieved through the introduction of 1,8-octanedithiol (ODT). This additive effectively passivates defects within the MAPbBr3 perovskite emitter and at the interface with the hole injection layer. The inset illustrates how ODT prevents exciton quenching by defect passivation, significantly enhancing luminescent properties and device efficiency.
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Quantum Dots Synthesis And Properties

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Affiliations

Department of Materials Science and Engineering Seoul National University 1 Gwanak‐ro Seoul 08826 Republic of Korea

School of Materials Science and Engineering Gwangju Institute of Science and Technology (GIST) 123 Cheomdangwagi‐ro Gwangju 61005 Republic of Korea

PEROLED Co. Ltd. Building 940, 1 Gwanak‐ro Seoul 08826 Republic of Korea

Institute of Engineering Research Soft Foundry Seoul National University 1 Gwanak‐ro Seoul 08826 Republic of Korea

Department of Materials Science and Engineering Pohang University of Science and Technology (POSTECH) 77 Cheongam‐ro Pohang 37673 Republic of Korea

Interdisciplinary Centre for Electron Microscopy (CIME) École Polytechnique Fédérale de Lausanne (EPFL) Lausanne CH‐1015 Switzerland

Institute of Chemical Sciences and Engineering École Polytechnique Fédérale de Lausanne (EPFL) Lausanne CH‐1015 Switzerland

Research Institute of Advanced Materials Seoul National University 1 Gwanak‐ro Seoul 08826 Republic of Korea

School of Chemical and Biological Engineering Seoul National University 1 Gwanak‐ro Seoul 08826 Republic of Korea

SN Display Co. Ltd. Building 33, 1 Gwanak‐ro Seoul 08826 Republic of Korea

References

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