journal article·2025-05-02

Pure-Blue Emitting Face-Down-Oriented Perovskite Nanoplatelets for Light-Emitting Diodes

Naoaki Oshita, Mao Goto, Kohei Narazaki, Ryota Kobayashi, Mizuki Ohke, Yusaku Morikawa, Sarah Phillips, Yuta Ito, Motofumi Kashiwagi, Satoshi Asakura, Takayuki Chiba, Akito Masuhara

ACS Applied Nano Materials· Volume 8· Issue 17
Publisher page

Abstract

Pure-blue lead trihalide perovskite nanoplatelets (PeNPLs) exhibit anisotropy and polarized transition dipole moments owing to their morphology, which is beneficial for optoelectronic devices. However, studies focusing on the lateral size of PeNPLs and their orientation (“face down” and “edge up”) have not demonstrated these advantages. In this study, large lateral-size PeNPLs showed strong face-down orientation and superior optical properties, leading to the improved performance of light-emitting diodes (LEDs). These findings provide valuable insights and suggest a promising strategy for the development of high-performance pure-blue LEDs using PeNPLs.
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Research context

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

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan

Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan

Graduate School of Science and Engineering, Yamagata University, 1-4-12 Kojirakawa-machi, Yamagata, Yamagata 990-8560, Japan

Department of Physics

University of Vermont

ZEON Corporation, 1-6-2 Marunouchi Chiyoda-ku, Tokyo 100-8246, Japan

ISE CHEMICALS Corporation, 1-3-1 Kyobashi Chuo-ku, Tokyo 104-0031, Japan

Frontier Center for Organic Materials (FROM), Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan

Funding

Kato Foundation for Promotion of Science · Adaptable and Seamless Technology Transfer Program through Target-Driven R and D · Japan Society for the Promotion of Science · Japan Science and Technology Agency · Office of International Science and Engineering · Iketani Science and Technology Foundation · Japan Power Academy

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