Laser-Scanned Programmable Perovskite-Nanocrystal Color Conversion Layers for White Light-Emitting Electrochemical Cells

Wen Kuang Wu, Cheng Ming Wang, Ming-Che Chan, Jiun Yi Lien, Yong Ming Su, Monima Sarma, Zu-Po Yang, Hai-Ching Su, Ken Tsung Wong, Sue Lein Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We demonstrate that the correlated color temperatures (CCTs) of the white light-emitting electrochemical cells (LECs) can be tuned by modifying the optical properties of perovskite nanocrystals (NCs) in the color conversion layers (CCLs). By controlling the laser power, scanning number and duty cycle of the scanned grating patterns on perovskite-NC CCLs, the CCTs of the white LECs can be tuned from 2502 K to nearly 4300 K. This method is different from the conventional CCLs using multiple compositions of perovskite NCs to produce white light, so that it can avoid the inherent anion-exchange issue of perovskite NCs.

Original languageEnglish
Title of host publicationAM-FPD 2018 - 25th International Workshop on Active-Matrix Flatpanel Displays and Devices
Subtitle of host publicationTFT Technologies and FPD Materials, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9784990875350
DOIs
StatePublished - 15 Aug 2018
Event25th International Workshop on Active-Matrix Flatpanel Displays and Devices - TFT Technologies and FPD Materials, AM-FPD 2018 - Kyoto, Japan
Duration: 3 Jul 20186 Jul 2018

Publication series

NameAM-FPD 2018 - 25th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, Proceedings

Conference

Conference25th International Workshop on Active-Matrix Flatpanel Displays and Devices - TFT Technologies and FPD Materials, AM-FPD 2018
CountryJapan
CityKyoto
Period3/07/186/07/18

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