High-Reliability Perovskite Quantum Dots Using Atomic Layer Deposition Passivation for Novel Photonic Applications

Tzu Yi Lee; Tsau Hua Hsieh; Wen Chien Miao; Konthoujam James Singh; Yiming Li; Chang Ching Tu; Fang Chung Chen; Wen Chung Lu; Hao Chung Kuo

doi:10.3390/nano12234140

High-Reliability Perovskite Quantum Dots Using Atomic Layer Deposition Passivation for Novel Photonic Applications

Tzu Yi Lee, Tsau Hua Hsieh, Wen Chien Miao, Konthoujam James Singh, Yiming Li, Chang Ching Tu, Fang Chung Chen^*, Wen Chung Lu, Hao Chung Kuo^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

In this study, we propose highly stable perovskite quantum dots (PQDs) coated with Al₂O₃ using atomic layer deposition (ALD) passivation technology. This passivation layer effectively protects the QDs from moisture infiltration and oxidation as well as from high temperatures and any changes in the material characteristics. They exhibit excellent wavelength stability and reliability in terms of current variation tests, long-term light aging tests, and temperature/humidity tests (60°/90%). A white-light system has been fabricated by integrating a micro-LED and red phosphor exhibiting a high data transmission rate of 1 Gbit/s. These results suggest that PeQDs treated with ALD passivation protection offer promising prospects in full-color micro-displays and high-speed visible-light communication (VLC) applications.

Original language	English
Article number	4140
Journal	Nanomaterials
Volume	12
Issue number	23
DOIs	https://doi.org/10.3390/nano12234140
State	Published - Dec 2022

Keywords

ALD passivation technology
VLC
micro-displays
perovskite quantum dots
reliability

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10.3390/nano12234140

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@article{a66c42b1e5ba4cccbb0e63c737271161,

title = "High-Reliability Perovskite Quantum Dots Using Atomic Layer Deposition Passivation for Novel Photonic Applications",

abstract = "In this study, we propose highly stable perovskite quantum dots (PQDs) coated with Al2O3 using atomic layer deposition (ALD) passivation technology. This passivation layer effectively protects the QDs from moisture infiltration and oxidation as well as from high temperatures and any changes in the material characteristics. They exhibit excellent wavelength stability and reliability in terms of current variation tests, long-term light aging tests, and temperature/humidity tests (60°/90%). A white-light system has been fabricated by integrating a micro-LED and red phosphor exhibiting a high data transmission rate of 1 Gbit/s. These results suggest that PeQDs treated with ALD passivation protection offer promising prospects in full-color micro-displays and high-speed visible-light communication (VLC) applications.",

keywords = "ALD passivation technology, VLC, micro-displays, perovskite quantum dots, reliability",

author = "Lee, {Tzu Yi} and Hsieh, {Tsau Hua} and Miao, {Wen Chien} and {James Singh}, Konthoujam and Yiming Li and Tu, {Chang Ching} and Chen, {Fang Chung} and Lu, {Wen Chung} and Kuo, {Hao Chung}",

note = "Publisher Copyright: {\textcopyright} 2022 by the authors.",

year = "2022",

month = dec,

doi = "10.3390/nano12234140",

language = "English",

volume = "12",

journal = "Nanomaterials",

issn = "2079-4991",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

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T1 - High-Reliability Perovskite Quantum Dots Using Atomic Layer Deposition Passivation for Novel Photonic Applications

AU - Lee, Tzu Yi

AU - Hsieh, Tsau Hua

AU - Miao, Wen Chien

AU - James Singh, Konthoujam

AU - Li, Yiming

AU - Tu, Chang Ching

AU - Chen, Fang Chung

AU - Lu, Wen Chung

AU - Kuo, Hao Chung

PY - 2022/12

Y1 - 2022/12

N2 - In this study, we propose highly stable perovskite quantum dots (PQDs) coated with Al2O3 using atomic layer deposition (ALD) passivation technology. This passivation layer effectively protects the QDs from moisture infiltration and oxidation as well as from high temperatures and any changes in the material characteristics. They exhibit excellent wavelength stability and reliability in terms of current variation tests, long-term light aging tests, and temperature/humidity tests (60°/90%). A white-light system has been fabricated by integrating a micro-LED and red phosphor exhibiting a high data transmission rate of 1 Gbit/s. These results suggest that PeQDs treated with ALD passivation protection offer promising prospects in full-color micro-displays and high-speed visible-light communication (VLC) applications.

AB - In this study, we propose highly stable perovskite quantum dots (PQDs) coated with Al2O3 using atomic layer deposition (ALD) passivation technology. This passivation layer effectively protects the QDs from moisture infiltration and oxidation as well as from high temperatures and any changes in the material characteristics. They exhibit excellent wavelength stability and reliability in terms of current variation tests, long-term light aging tests, and temperature/humidity tests (60°/90%). A white-light system has been fabricated by integrating a micro-LED and red phosphor exhibiting a high data transmission rate of 1 Gbit/s. These results suggest that PeQDs treated with ALD passivation protection offer promising prospects in full-color micro-displays and high-speed visible-light communication (VLC) applications.

KW - ALD passivation technology

KW - VLC

KW - micro-displays

KW - perovskite quantum dots

KW - reliability

UR - http://www.scopus.com/inward/record.url?scp=85143588685&partnerID=8YFLogxK

U2 - 10.3390/nano12234140

DO - 10.3390/nano12234140

M3 - Article

AN - SCOPUS:85143588685

SN - 2079-4991

VL - 12

JO - Nanomaterials

JF - Nanomaterials

IS - 23

M1 - 4140

ER -

High-Reliability Perovskite Quantum Dots Using Atomic Layer Deposition Passivation for Novel Photonic Applications

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Keywords

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