skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High-Brightness Blue and White LEDs based on Inorganic Perovskite Nanocrystals and their Composites

Abstract

Inorganic metal halide perovskite nanocrystals (NCs) have been employed universally in light-emitting applications during the past two years. Here, blue-emission (≈ 470 nm) Cs-based perovskite NCs are derived by directly mixing synthesized bromide and chloride nanocrystals with a weight ratio of 2:1. High-brightness blue perovskite light-emitting diodes (PeLEDs) are obtained by controlling the grain size of the perovskite films. Moreover, a white PeLED is demonstrated for the first time by blending orange polymer materials with the blue perovskite nanocrystals as the active layer. Exciton transfer from the blue nanocrystals to the orange polymers via Forster or Dexter energy transfer is analyzed through time resolved photoluminescence. In conclusion, by tuning the ratio between the perovskite nanocrystals and polymers, pure white light is achieved with the a CIE coordinate at (0.33,0.34).

Authors:
 [1];  [2];  [2];  [2];  [2];  [3];  [2]
  1. Univ. of California, Los Angeles, CA (United States); National Cheng Kung Univ., Tainan (Taiwan)
  2. Univ. of California, Los Angeles, CA (United States)
  3. National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
US Air Force Office of Scientific Research (AFOSR); National Science Foundation (NSF); USDOE
OSTI Identifier:
1364159
Report Number(s):
NREL/JA-5900-68405
Journal ID: ISSN 0935-9648
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Accepted Manuscript
Journal Name:
Advanced Materials
Additional Journal Information:
Journal Volume: 29; Journal Issue: 23; Journal ID: ISSN 0935-9648
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; light-emitting diodes; nanocrystals; perovskites; white light

Citation Formats

Yao, En -Ping, Yang, Zhanlue, Meng, Lei, Sun, Pengyu, Dong, Shiqi, Yang, Ye, and Yang, Yang. High-Brightness Blue and White LEDs based on Inorganic Perovskite Nanocrystals and their Composites. United States: N. p., 2017. Web. doi:10.1002/adma.201606859.
Yao, En -Ping, Yang, Zhanlue, Meng, Lei, Sun, Pengyu, Dong, Shiqi, Yang, Ye, & Yang, Yang. High-Brightness Blue and White LEDs based on Inorganic Perovskite Nanocrystals and their Composites. United States. doi:10.1002/adma.201606859.
Yao, En -Ping, Yang, Zhanlue, Meng, Lei, Sun, Pengyu, Dong, Shiqi, Yang, Ye, and Yang, Yang. Mon . "High-Brightness Blue and White LEDs based on Inorganic Perovskite Nanocrystals and their Composites". United States. doi:10.1002/adma.201606859. https://www.osti.gov/servlets/purl/1364159.
@article{osti_1364159,
title = {High-Brightness Blue and White LEDs based on Inorganic Perovskite Nanocrystals and their Composites},
author = {Yao, En -Ping and Yang, Zhanlue and Meng, Lei and Sun, Pengyu and Dong, Shiqi and Yang, Ye and Yang, Yang},
abstractNote = {Inorganic metal halide perovskite nanocrystals (NCs) have been employed universally in light-emitting applications during the past two years. Here, blue-emission (≈ 470 nm) Cs-based perovskite NCs are derived by directly mixing synthesized bromide and chloride nanocrystals with a weight ratio of 2:1. High-brightness blue perovskite light-emitting diodes (PeLEDs) are obtained by controlling the grain size of the perovskite films. Moreover, a white PeLED is demonstrated for the first time by blending orange polymer materials with the blue perovskite nanocrystals as the active layer. Exciton transfer from the blue nanocrystals to the orange polymers via Forster or Dexter energy transfer is analyzed through time resolved photoluminescence. In conclusion, by tuning the ratio between the perovskite nanocrystals and polymers, pure white light is achieved with the a CIE coordinate at (0.33,0.34).},
doi = {10.1002/adma.201606859},
journal = {Advanced Materials},
number = 23,
volume = 29,
place = {United States},
year = {2017},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 26 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

NiO x Electrode Interlayer and CH 3 NH 2 /CH 3 NH 3 PbBr 3 Interface Treatment to Markedly Advance Hybrid Perovskite-Based Light-Emitting Diodes
journal, August 2016

  • Chih, Yi-Kai; Wang, Jian-Chih; Yang, Rei-Ting
  • Advanced Materials, Vol. 28, Issue 39
  • DOI: 10.1002/adma.201602974

Enhanced Optical and Electrical Properties of Polymer-Assisted All-Inorganic Perovskites for Light-Emitting Diodes
journal, August 2016


Perovskite cells charge forward
journal, May 2015

  • Green, Martin A.; Bein, Thomas
  • Nature Materials, Vol. 14, Issue 6
  • DOI: 10.1038/nmat4301

Interfacial Control Toward Efficient and Low-Voltage Perovskite Light-Emitting Diodes
journal, February 2015


The emergence of perovskite solar cells
journal, July 2014

  • Green, Martin A.; Ho-Baillie, Anita; Snaith, Henry J.
  • Nature Photonics, Vol. 8, Issue 7, p. 506-514
  • DOI: 10.1038/nphoton.2014.134

Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
journal, May 2009

  • Kojima, Akihiro; Teshima, Kenjiro; Shirai, Yasuo
  • Journal of the American Chemical Society, Vol. 131, Issue 17, p. 6050-6051
  • DOI: 10.1021/ja809598r

Organometal Perovskite Light Absorbers Toward a 20% Efficiency Low-Cost Solid-State Mesoscopic Solar Cell
journal, July 2013

  • Park, Nam-Gyu
  • The Journal of Physical Chemistry Letters, Vol. 4, Issue 15, p. 2423-2429
  • DOI: 10.1021/jz400892a

Fluorescence Blinking and Photoactivation of All-Inorganic Perovskite Nanocrystals CsPbBr 3 and CsPbBr 2 I
journal, January 2016

  • Seth, Sudipta; Mondal, Navendu; Patra, Satyajit
  • The Journal of Physical Chemistry Letters, Vol. 7, Issue 2
  • DOI: 10.1021/acs.jpclett.5b02639

Quantum Dot Light-Emitting Diodes Based on Inorganic Perovskite Cesium Lead Halides (CsPbX 3 )
journal, October 2015


Interface engineering of highly efficient perovskite solar cells
journal, July 2014


Perovskite as Light Harvester: A Game Changer in Photovoltaics
journal, February 2014

  • Kazim, Samrana; Nazeeruddin, Mohammad Khaja; Grätzel, Michael
  • Angewandte Chemie International Edition, Vol. 53, Issue 11
  • DOI: 10.1002/anie.201308719

Tuning the Optical Properties of Cesium Lead Halide Perovskite Nanocrystals by Anion Exchange Reactions
journal, August 2015

  • Akkerman, Quinten A.; D’Innocenzo, Valerio; Accornero, Sara
  • Journal of the American Chemical Society, Vol. 137, Issue 32
  • DOI: 10.1021/jacs.5b05602

Overcoming the electroluminescence efficiency limitations of perovskite light-emitting diodes
journal, December 2015


Highly Reproducible Perovskite Solar Cells with Average Efficiency of 18.3% and Best Efficiency of 19.7% Fabricated via Lewis Base Adduct of Lead(II) Iodide
journal, July 2015

  • Ahn, Namyoung; Son, Dae-Yong; Jang, In-Hyuk
  • Journal of the American Chemical Society, Vol. 137, Issue 27
  • DOI: 10.1021/jacs.5b04930

Effect of structural phase transitions on the exciton absorption spectrum of thin CsPbCl 3 films
journal, August 2014

  • Yunakova, O. N.; Miloslavsky, V. K.; Kovalenko, E. N.
  • Low Temperature Physics, Vol. 40, Issue 8
  • DOI: 10.1063/1.4894319

Efficient Luminescence from Perovskite Quantum Dot Solids
journal, November 2015

  • Kim, Younghoon; Yassitepe, Emre; Voznyy, Oleksandr
  • ACS Applied Materials & Interfaces, Vol. 7, Issue 45
  • DOI: 10.1021/acsami.5b09084

Highly Efficient Perovskite-Quantum-Dot Light-Emitting Diodes by Surface Engineering
journal, August 2016


Solution Synthesis Approach to Colloidal Cesium Lead Halide Perovskite Nanoplatelets with Monolayer-Level Thickness Control
journal, January 2016

  • Akkerman, Quinten A.; Motti, Silvia Genaro; Srimath Kandada, Ajay Ram
  • Journal of the American Chemical Society, Vol. 138, Issue 3
  • DOI: 10.1021/jacs.5b12124

Highly Efficient Perovskite Nanocrystal Light-Emitting Diodes Enabled by a Universal Crosslinking Method
journal, March 2016

  • Li, Guangru; Rivarola, Florencia Wisnivesky Rocca; Davis, Nathaniel J. L. K.
  • Advanced Materials, Vol. 28, Issue 18
  • DOI: 10.1002/adma.201600064

Highly Luminescent Colloidal Nanoplates of Perovskite Cesium Lead Halide and Their Oriented Assemblies
journal, December 2015

  • Bekenstein, Yehonadav; Koscher, Brent A.; Eaton, Samuel W.
  • Journal of the American Chemical Society, Vol. 137, Issue 51
  • DOI: 10.1021/jacs.5b11199

All-Inorganic Perovskite Nanocrystals for High-Efficiency Light Emitting Diodes: Dual-Phase CsPbBr 3 -CsPb 2 Br 5 Composites
journal, April 2016

  • Zhang, Xiaoli; Xu, Bing; Zhang, Jinbao
  • Advanced Functional Materials, Vol. 26, Issue 25
  • DOI: 10.1002/adfm.201600958

Degradation observations of encapsulated planar CH 3 NH 3 PbI 3 perovskite solar cells at high temperatures and humidity
journal, January 2015

  • Han, Yu; Meyer, Steffen; Dkhissi, Yasmina
  • Journal of Materials Chemistry A, Vol. 3, Issue 15
  • DOI: 10.1039/C5TA00358J

Pyrochlore–perovskite phase transformation in highly homogeneous (Pb,La)(Zr,Sn,Ti)O3 powders
journal, January 1999

  • Lee, Joon‐Hyung; Chiang, Yet‐Ming
  • Journal of Materials Chemistry, Vol. 9, Issue 12
  • DOI: 10.1039/a905142b

Nanocrystals of Cesium Lead Halide Perovskites (CsPbX 3 , X = Cl, Br, and I): Novel Optoelectronic Materials Showing Bright Emission with Wide Color Gamut
journal, February 2015

  • Protesescu, Loredana; Yakunin, Sergii; Bodnarchuk, Maryna I.
  • Nano Letters, Vol. 15, Issue 6
  • DOI: 10.1021/nl5048779

Perovskites: The Emergence of a New Era for Low-Cost, High-Efficiency Solar Cells
journal, October 2013

  • Snaith, Henry J.
  • The Journal of Physical Chemistry Letters, Vol. 4, Issue 21, p. 3623-3630
  • DOI: 10.1021/jz4020162

50-Fold EQE Improvement up to 6.27% of Solution-Processed All-Inorganic Perovskite CsPbBr 3 QLEDs via Surface Ligand Density Control
journal, November 2016


    Works referencing / citing this record:

    Perovskite white light-emitting diodes based on a molecular blend perovskite emissive layer
    journal, January 2019

    • Chang, Che-Yu; Solodukhin, Alexander N.; Liao, Shih-Yu
    • Journal of Materials Chemistry C, Vol. 7, Issue 28
    • DOI: 10.1039/c9tc01509d

    Perovskite white light-emitting diodes based on a molecular blend perovskite emissive layer
    journal, January 2019

    • Chang, Che-Yu; Solodukhin, Alexander N.; Liao, Shih-Yu
    • Journal of Materials Chemistry C, Vol. 7, Issue 28
    • DOI: 10.1039/c9tc01509d