Simultaneous enhancement of luminescence and stability of CsPbBr3 perovskite nanocrystals via formation of perhydropolysilazane-derived nanopatterned film

Shulgi Park; Junhee Cho; Dawoon Jeong; Jiyeon Jo; Minwoo Nam; Hanju Rhee; Joon Soo Han; Yong Jae Cho; Byeong Kwon Ju; Doo Hyun Ko; Ho Seong Jang

doi:10.1016/j.cej.2020.124767

Simultaneous enhancement of luminescence and stability of CsPbBr₃ perovskite nanocrystals via formation of perhydropolysilazane-derived nanopatterned film

Shulgi Park
, Junhee Cho
, Dawoon Jeong
, Jiyeon Jo
, Minwoo Nam
, Hanju Rhee
, Joon Soo Han
, Yong Jae Cho
, Byeong Kwon Ju
, Doo Hyun Ko^*
, Ho Seong Jang

^*Corresponding author for this work

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

20 Citations (Scopus)

Abstract

In this paper, we report the creation of robust and bright visible light-emitting perhydropolysilazane (PHPS)-derived nanopatterned CsPbBr₃ perovskite nanocrystal (PNC)-SiO₂ films. The CsPbBr₃-SiO₂ films exhibit improved stability against heat exhibiting 35.4% of the initial photoluminescence (PL) intensity after 160 °C heat-treatment and improved stability against water showing 92.6% of the initial PL intensity even after 30 days’ water immersion. In addition, the introduction of nanocylinder and nanocone patterns to the PHPS-derived CsPbBr₃-SiO₂ film resulted in 3.71 and 4.62-fold PL enhancement compared with the planar counterpart. The time resolved PL analysis and finite-difference time domain calculations indicate that the improvement of optical performance of the nanopatterned CsPbBr₃-SiO₂ films could be attributed to the enhanced absorption and emission via Mie resonance excitation. When the nanopatterned CsPbBr₃-SiO₂ film was combined with a blue light-emitting diode (LED), some of the blue light from the LED was converted into green light with high light conversion efficiency (72.3%). Along with the improved stability, the enhanced luminescence of the nanopatterned CsPbBr₃-SiO₂ films further extends their applicability for use in display devices with wide color gamut.

Original language	English
Article number	124767
Journal	Chemical Engineering Journal
Volume	393
DOIs	https://doi.org/10.1016/j.cej.2020.124767
Publication status	Published - 2020 Aug 1

Bibliographical note

Funding Information:
This research was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) ( NRF-2018R1A2B5A03023239 , NRF-2020R1A2C2005844 ) and by the Future Key Technology Program (project No. 2E29250) by the Korea Institute of Science and Technology.

Publisher Copyright:
© 2020

Keywords

Nanopattern
Perhydropolysilazane
Perovskite nanocrystal film
Perovskite nanocrystals

ASJC Scopus subject areas

General Chemistry
Environmental Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

Access to Document

10.1016/j.cej.2020.124767

Cite this

Park, S., Cho, J., Jeong, D., Jo, J., Nam, M., Rhee, H., Han, J. S., Cho, Y. J., Ju, B. K., Ko, D. H., & Jang, H. S. (2020). Simultaneous enhancement of luminescence and stability of CsPbBr₃ perovskite nanocrystals via formation of perhydropolysilazane-derived nanopatterned film. Chemical Engineering Journal, 393, Article 124767. https://doi.org/10.1016/j.cej.2020.124767

@article{56c4b38ce7224a67a3fe05005f585af0,

title = "Simultaneous enhancement of luminescence and stability of CsPbBr3 perovskite nanocrystals via formation of perhydropolysilazane-derived nanopatterned film",

abstract = "In this paper, we report the creation of robust and bright visible light-emitting perhydropolysilazane (PHPS)-derived nanopatterned CsPbBr3 perovskite nanocrystal (PNC)-SiO2 films. The CsPbBr3-SiO2 films exhibit improved stability against heat exhibiting 35.4\% of the initial photoluminescence (PL) intensity after 160 °C heat-treatment and improved stability against water showing 92.6\% of the initial PL intensity even after 30 days{\textquoteright} water immersion. In addition, the introduction of nanocylinder and nanocone patterns to the PHPS-derived CsPbBr3-SiO2 film resulted in 3.71 and 4.62-fold PL enhancement compared with the planar counterpart. The time resolved PL analysis and finite-difference time domain calculations indicate that the improvement of optical performance of the nanopatterned CsPbBr3-SiO2 films could be attributed to the enhanced absorption and emission via Mie resonance excitation. When the nanopatterned CsPbBr3-SiO2 film was combined with a blue light-emitting diode (LED), some of the blue light from the LED was converted into green light with high light conversion efficiency (72.3\%). Along with the improved stability, the enhanced luminescence of the nanopatterned CsPbBr3-SiO2 films further extends their applicability for use in display devices with wide color gamut.",

keywords = "Nanopattern, Perhydropolysilazane, Perovskite nanocrystal film, Perovskite nanocrystals",

author = "Shulgi Park and Junhee Cho and Dawoon Jeong and Jiyeon Jo and Minwoo Nam and Hanju Rhee and Han, \{Joon Soo\} and Cho, \{Yong Jae\} and Ju, \{Byeong Kwon\} and Ko, \{Doo Hyun\} and Jang, \{Ho Seong\}",

note = "Funding Information: This research was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) ( NRF-2018R1A2B5A03023239 , NRF-2020R1A2C2005844 ) and by the Future Key Technology Program (project No. 2E29250) by the Korea Institute of Science and Technology. Publisher Copyright: {\textcopyright} 2020",

year = "2020",

month = aug,

day = "1",

doi = "10.1016/j.cej.2020.124767",

language = "English",

volume = "393",

journal = "Chemical Engineering Journal",

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T1 - Simultaneous enhancement of luminescence and stability of CsPbBr3 perovskite nanocrystals via formation of perhydropolysilazane-derived nanopatterned film

AU - Park, Shulgi

AU - Cho, Junhee

AU - Jeong, Dawoon

AU - Jo, Jiyeon

AU - Nam, Minwoo

AU - Rhee, Hanju

AU - Han, Joon Soo

AU - Cho, Yong Jae

AU - Ju, Byeong Kwon

AU - Ko, Doo Hyun

AU - Jang, Ho Seong

N1 - Funding Information: This research was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) ( NRF-2018R1A2B5A03023239 , NRF-2020R1A2C2005844 ) and by the Future Key Technology Program (project No. 2E29250) by the Korea Institute of Science and Technology. Publisher Copyright: © 2020

PY - 2020/8/1

Y1 - 2020/8/1

N2 - In this paper, we report the creation of robust and bright visible light-emitting perhydropolysilazane (PHPS)-derived nanopatterned CsPbBr3 perovskite nanocrystal (PNC)-SiO2 films. The CsPbBr3-SiO2 films exhibit improved stability against heat exhibiting 35.4% of the initial photoluminescence (PL) intensity after 160 °C heat-treatment and improved stability against water showing 92.6% of the initial PL intensity even after 30 days’ water immersion. In addition, the introduction of nanocylinder and nanocone patterns to the PHPS-derived CsPbBr3-SiO2 film resulted in 3.71 and 4.62-fold PL enhancement compared with the planar counterpart. The time resolved PL analysis and finite-difference time domain calculations indicate that the improvement of optical performance of the nanopatterned CsPbBr3-SiO2 films could be attributed to the enhanced absorption and emission via Mie resonance excitation. When the nanopatterned CsPbBr3-SiO2 film was combined with a blue light-emitting diode (LED), some of the blue light from the LED was converted into green light with high light conversion efficiency (72.3%). Along with the improved stability, the enhanced luminescence of the nanopatterned CsPbBr3-SiO2 films further extends their applicability for use in display devices with wide color gamut.

AB - In this paper, we report the creation of robust and bright visible light-emitting perhydropolysilazane (PHPS)-derived nanopatterned CsPbBr3 perovskite nanocrystal (PNC)-SiO2 films. The CsPbBr3-SiO2 films exhibit improved stability against heat exhibiting 35.4% of the initial photoluminescence (PL) intensity after 160 °C heat-treatment and improved stability against water showing 92.6% of the initial PL intensity even after 30 days’ water immersion. In addition, the introduction of nanocylinder and nanocone patterns to the PHPS-derived CsPbBr3-SiO2 film resulted in 3.71 and 4.62-fold PL enhancement compared with the planar counterpart. The time resolved PL analysis and finite-difference time domain calculations indicate that the improvement of optical performance of the nanopatterned CsPbBr3-SiO2 films could be attributed to the enhanced absorption and emission via Mie resonance excitation. When the nanopatterned CsPbBr3-SiO2 film was combined with a blue light-emitting diode (LED), some of the blue light from the LED was converted into green light with high light conversion efficiency (72.3%). Along with the improved stability, the enhanced luminescence of the nanopatterned CsPbBr3-SiO2 films further extends their applicability for use in display devices with wide color gamut.

KW - Nanopattern

KW - Perhydropolysilazane

KW - Perovskite nanocrystal film

KW - Perovskite nanocrystals

UR - https://www.scopus.com/pages/publications/85082118064

U2 - 10.1016/j.cej.2020.124767

DO - 10.1016/j.cej.2020.124767

M3 - Article

AN - SCOPUS:85082118064

SN - 1385-8947

VL - 393

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

M1 - 124767

ER -