Highly Efficient and Stable White Light-Emitting Diodes Using Perovskite Quantum Dot Paper

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

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Author(s)

  • Chieh-Yu Kang
  • Chun-Ho Lin
  • Chih-Hao Lin
  • Ting-You Li
  • Sung-Wen Huang Chen
  • Chun-Lin Tsai
  • Chin-Wei Sher
  • Ting-Zhu Wu
  • Po-Tsung Lee
  • Xuezhu Xu
  • Maolin Zhang
  • Chih-Hsiang Ho
  • Hao-Chung Kuo

Detail(s)

Original languageEnglish
Article number1902230
Journal / PublicationAdvanced Science
Volume6
Issue number24
Online published29 Oct 2019
Publication statusPublished - 18 Dec 2019

Abstract

Perovskite quantum dots (PQDs) are a competitive candidate for next-generation display technologies as a result of their superior photoluminescence, narrow emission, high quantum yield, and color tunability. However, due to poor thermal resistance and instability under high energy radiation, most PQD-based white light-emitting diodes (LEDs) show only modest luminous efficiency of ≈50 lm W-1 and a short lifetime of <100 h. In this study, by incorporating cellulose nanocrystals, a new type of QD film is fabricated: CH3NH3PbBr3 PQD paper that features 91% optical absorption, intense green light emission (518 nm), and excellent stability attributed to the complexation effect between the nanocellulose and PQDs. The PQD paper is combined with red K2SiF6:Mn4+ phosphor and blue GaN LED chips to fabricate a high-performance white LED demonstrating ultrahigh luminous efficiency (124 lm W-1), wide color gamut (123% of National Television System Committee), and long operation lifetime (240 h), which paves the way for advanced lighting technology.

Research Area(s)

  • light-emitting diodes, paper, perovskites, quantum dots, stability, POLYMER COMPOSITE FILMS, COLOR-GAMUT, NANOCRYSTALS, LEDS, PHOTOLUMINESCENCE, LUMINESCENT, BR, TRANSPARENT, DISPLAYS, CSPBX3

Citation Format(s)

Highly Efficient and Stable White Light-Emitting Diodes Using Perovskite Quantum Dot Paper. / Kang, Chieh-Yu; Lin, Chun-Ho; Lin, Chih-Hao; Li, Ting-You; Huang Chen, Sung-Wen; Tsai, Chun-Lin; Sher, Chin-Wei; Wu, Ting-Zhu; Lee, Po-Tsung; Xu, Xuezhu; Zhang, Maolin; Ho, Chih-Hsiang; He, Jr-Hau; Kuo, Hao-Chung.

In: Advanced Science, Vol. 6, No. 24, 1902230, 18.12.2019.

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