Highly UV Resistant Inch-Scale Hybrid Perovskite Quantum Dot Papers

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Ting-You Li
  • Xuezhu Xu
  • Chun-Ho Lin
  • Xinwei Guan
  • Wei-Hao Hsu
  • Meng-Lin Tsai
  • Xiaosheng Fang
  • Tom Wu

Detail(s)

Original languageEnglish
Article number1902439
Number of pages7
Journal / PublicationAdvanced Science
Volume7
Issue number17
Online published24 Jul 2020
Publication statusPublished - 9 Sep 2020

Link(s)

Abstract

Halide perovskite quantum dots (PQDs) are promising materials for diverse applications including displays, light‐emitting diodes, and solar cells due to their intriguing properties such as tunable bandgap, high photoluminescence quantum yield, high absorbance, and narrow emission peaks. Despite the prosperous achievements over the past several years, PQDs face severe challenges in terms of stability under different circumstances. Currently, researchers have overcome part of the stability problem, making PQDs sustainable in water, oxygen, and polar solvents for long‐term use. However, halide PQDs are easily degraded under continuous irradiation, which significantly limits their potential for conventional applications. In this study, an oleic acid/oleylamine (traditional surface ligands)‐free method to fabricate perovskite quantum dot papers (PQDP) is developed by adding cellulose nanocrystals as long‐chain binding ligands that stabilize the PQD structure. As a result, the relative photoluminescence intensity of PQDP remains over ≈90% under continuous ultraviolet (UV, 16 W) irradiation for 2 months, showing negligible photodegradation. This proposed method paves the way for the fabrication of ultrastable PQDs and the future development of related applications.

Research Area(s)

  • cellulose nanocrystals, displays, light-emitting diodes, papers, perovskites, quantum dots, solar cells

Citation Format(s)

Highly UV Resistant Inch-Scale Hybrid Perovskite Quantum Dot Papers. / Li, Ting-You; Xu, Xuezhu; Lin, Chun-Ho; Guan, Xinwei; Hsu, Wei-Hao; Tsai, Meng-Lin; Fang, Xiaosheng; Wu, Tom; He, Jr-Hau.

In: Advanced Science, Vol. 7, No. 17, 1902439, 09.09.2020.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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