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journal article·2023-11Open access

Thermal Management Enables Stable Perovskite Nanocrystal Light‐Emitting Diodes with Novel Hole Transport Material (Small 45/2023)

Xinyu Shen, Seon Lee Kwak, Woo Hyeon Jeong, Ji Won Jang, Zhongkai Yu, Hyungju Ahn, Hea Jung Park, Hyosung Choi, Sung Heum Park, Henry J. Snaith, Do‐Hoon Hwang, Bo Ram Lee

Small· Volume 19· Issue 45
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Source abstract

Abstract

Perovskite Nanocrystal Light-Emitting Diodes In article number 2303472, Do-Hoon Hwang, Bo Ram Lee, and co-workers design crosslinked poly(FCA60-co-BFCA20-co-VFCA20) as a temperature-dependent hole transport layer for perovskite nanocrystal light-emittingdiodes (LEDs), balancing charge injection, reducing interface exciton quenching and Joule heating. The effective thermal management of the working device results in a 2-fold increase in ex-ternal quantum efficiency (EQE) and a remarkable 150-fold extension of the operational lifetime compared to LEDs with poly(4-butyl-phenyl-diphenyl-amine)(poly-TPD) as the hole transport layer.
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Research context

NanomaterialsElectronic materials

OpenAlex topics: Perovskite Materials and Applications

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Affiliations

Department of Physics CECS Research Institute and Core Research Institute Pukyong National University Busan 48513 Republic of Korea

Clarendon Laboratory Department of Physics University of Oxford Oxford OX1 3PU UK

Department of Chemistry and Chemistry Institute for Functional Materials Pusan National University Busan 46241 Republic of Korea

Department of Chemistry Research Institute for Convergence of Basic Sciences and Research Institute for Natural Science Hanyang University Seoul 04763 Republic of Korea

Pohang Accelerator Laboratory POSTECH Pohang 37673 Republic of Korea

Department of Biology and Chemistry Changwon National University Changwon 51140 Republic of Korea

References

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