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Crystals 2019, 9(2), 59; https://doi.org/10.3390/cryst9020059

Emerging Perovskite Nanocrystals-Enhanced Solid-State Lighting and Liquid-Crystal Displays

1
College of Optics and Photonics, University of Central Florida, Orlando, FL 32816, USA
2
Department of Materials Science & Engineering, University of Central Florida, Orlando, FL 32816, USA
3
NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA
*
Author to whom correspondence should be addressed.
Received: 11 January 2019 / Revised: 16 January 2019 / Accepted: 20 January 2019 / Published: 22 January 2019
(This article belongs to the Special Issue Advanced LED Solid-state Lighting Optics)
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Abstract

Recent advances in perovskite nanocrystals-enhanced solid-state lighting (SSL) and liquid-crystal displays (LCDs) are reviewed. We first discuss the development, optical properties, and stability issue of materials, and then we evaluate the performance of SSL and LCDs with perovskite downconverters adopted. In SSL performance evaluation, we investigate the fitting-curve effect in calculations and optimizations where simple Gaussian fitting and precise fitting are compared in detail, and we further optimize for highly efficient, good color-rendering, and human-healthy SSL sources. For LCD performance evaluation, we study the intrinsic tradeoffs between total light efficiency and color gamut coverage. Through optimizations using real line shapes, Rec. 2020 standard coverage as large as 92.8% can be achieved through hybrid integration. Finally, we briefly discuss two future challenges: materials development and device integration. We believe the emerging perovskite nanocrystals are highly promising for next-generation SSL and LCDs. View Full-Text
Keywords: perovskite nanocrystals; photoluminescence; solid-state lighting; color quality scale; circadian effect; liquid-crystal displays; wide color gamut perovskite nanocrystals; photoluminescence; solid-state lighting; color quality scale; circadian effect; liquid-crystal displays; wide color gamut
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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He, Z.; Zhang, C.; Dong, Y.; Wu, S.-T. Emerging Perovskite Nanocrystals-Enhanced Solid-State Lighting and Liquid-Crystal Displays. Crystals 2019, 9, 59.

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