Structural and spectral dynamics of single-crystalline Ruddlesden-Popper phase halide perovskite blue light-emitting diodes
Abstract
Achieving perovskite-based high–color purity blue-emitting light-emitting diodes (LEDs) is still challenging. Here, we report successful synthesis of a series of blue-emissive two-dimensional Ruddlesden-Popper phase single crystals and their high–color purity blue-emitting LED demonstrations. Although this approach successfully achieves a series of bandgap emissions based on the different layer thicknesses, it still suffers from a conventional temperature-induced device degradation mechanism during high-voltage operations. To understand the underlying mechanism, we further elucidate temperature-induced device degradation by investigating the crystal structural and spectral evolution dynamics via in situ temperature-dependent single-crystal x-ray diffraction, photoluminescence (PL) characterization, and density functional theory calculation. The PL peak becomes asymmetrically broadened with a marked intensity decay, as temperature increases owing to [PbBr6]4-octahedra tilting and the organic chain disordering, which results in bandgap decrease. This study indicates that careful heat management under LED operation is a key factor to maintain the sharp and intense emission.
- Authors:
-
- Univ. of California, Berkeley, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL); Southern Univ. of Science and Technology, Shenzhen, Guangdong (China)
- Univ. of California, Berkeley, CA (United States); Shanghai Univ. of Electric Power (China)
- Univ. of California, Berkeley, CA (United States); Inst. for Basic Science (IBS), Seoul (South Korea); Yonsei Univ., Seoul (South Korea); Kavli Energy NanoScience Inst., Berkeley, CA (United States); Sungkyunkwan Univ. (SKKU), Suwon (South Korea)
- Univ. of California, Berkeley, CA (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
- SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
- Univ. of California, Berkeley, CA (United States); Kavli Energy NanoScience Inst., Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- Energy Frontier Research Centers (EFRC) (United States). Center for Hybrid Organic-Inorganic Semiconductors for Energy (CHOISE); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Science & Engineering Division
- OSTI Identifier:
- 1599850
- Alternate Identifier(s):
- OSTI ID: 1604562
- Grant/Contract Number:
- AC02-05CH11231; AC02-76SF00515; AC36-08G028308
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Science Advances
- Additional Journal Information:
- Journal Volume: 6; Journal Issue: 4; Journal ID: ISSN 2375-2548
- Publisher:
- AAAS
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Chen, Hong, Lin, Jia, Kang, Joohoon, Kong, Qiao, Lu, Dylan, Kang, Jun, Lai, Minliang, Quan, Li Na, Lin, Zhenni, Jin, Jianbo, Wang, Lin-wang, Toney, Michael F., and Yang, Peidong. Structural and spectral dynamics of single-crystalline Ruddlesden-Popper phase halide perovskite blue light-emitting diodes. United States: N. p., 2020.
Web. doi:10.1126/sciadv.aay4045.
Chen, Hong, Lin, Jia, Kang, Joohoon, Kong, Qiao, Lu, Dylan, Kang, Jun, Lai, Minliang, Quan, Li Na, Lin, Zhenni, Jin, Jianbo, Wang, Lin-wang, Toney, Michael F., & Yang, Peidong. Structural and spectral dynamics of single-crystalline Ruddlesden-Popper phase halide perovskite blue light-emitting diodes. United States. https://doi.org/10.1126/sciadv.aay4045
Chen, Hong, Lin, Jia, Kang, Joohoon, Kong, Qiao, Lu, Dylan, Kang, Jun, Lai, Minliang, Quan, Li Na, Lin, Zhenni, Jin, Jianbo, Wang, Lin-wang, Toney, Michael F., and Yang, Peidong. Wed .
"Structural and spectral dynamics of single-crystalline Ruddlesden-Popper phase halide perovskite blue light-emitting diodes". United States. https://doi.org/10.1126/sciadv.aay4045. https://www.osti.gov/servlets/purl/1599850.
@article{osti_1599850,
title = {Structural and spectral dynamics of single-crystalline Ruddlesden-Popper phase halide perovskite blue light-emitting diodes},
author = {Chen, Hong and Lin, Jia and Kang, Joohoon and Kong, Qiao and Lu, Dylan and Kang, Jun and Lai, Minliang and Quan, Li Na and Lin, Zhenni and Jin, Jianbo and Wang, Lin-wang and Toney, Michael F. and Yang, Peidong},
abstractNote = {Achieving perovskite-based high–color purity blue-emitting light-emitting diodes (LEDs) is still challenging. Here, we report successful synthesis of a series of blue-emissive two-dimensional Ruddlesden-Popper phase single crystals and their high–color purity blue-emitting LED demonstrations. Although this approach successfully achieves a series of bandgap emissions based on the different layer thicknesses, it still suffers from a conventional temperature-induced device degradation mechanism during high-voltage operations. To understand the underlying mechanism, we further elucidate temperature-induced device degradation by investigating the crystal structural and spectral evolution dynamics via in situ temperature-dependent single-crystal x-ray diffraction, photoluminescence (PL) characterization, and density functional theory calculation. The PL peak becomes asymmetrically broadened with a marked intensity decay, as temperature increases owing to [PbBr6]4-octahedra tilting and the organic chain disordering, which results in bandgap decrease. This study indicates that careful heat management under LED operation is a key factor to maintain the sharp and intense emission.},
doi = {10.1126/sciadv.aay4045},
journal = {Science Advances},
number = 4,
volume = 6,
place = {United States},
year = {Wed Jan 22 00:00:00 EST 2020},
month = {Wed Jan 22 00:00:00 EST 2020}
}
Web of Science
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