The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.
Achieving Near-Unity Photoluminescence Efficiency for Blue-Violet-Emitting Perovskite Nanocrystals
Abstract
While perovskite nanocrystals (NCs) have shown great promise as materials for efficient light-emitting diodes (LEDs), low photoluminescence quantum yield (PLQY) of the blue -emitting perovskites is an impediment to the development of white LEDs of which blue is an essential component. Herein, we report that room temperature postsynthetic treatment of weakly blue-violet-emitting (PLQY 3%) CsPbCl 3 NCs with CdCl 2 results in an instantaneous enhancement of the PLQY to near-unity without affecting the PL peak position (406 nm) and spectral width. The time-resolved PL and ultrafast transient absorption measurements confirm the removal of nonradiative defect states of the CsPbCl 3 NCs in treated sample. The elemental composition and structural data of the treated sample reveal facile doping of Cd 2+ into the crystal lattice without affecting the size and shape of the NCs. Extraordinary PLQY, high air stability and photostability and ease of preparation of this Cd-doped CsPbCl 3 make it by far the most attractive blue-emitting perovskite for development of efficient blue and white LEDs.
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Properties and potential optoelectronic applications of lead halide perovskite nanocrystals
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Perovskite Materials for Light‐Emitting Diodes and Lasers
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Lead Halide Perovskite Nanocrystals in the Research Spotlight: Stability and Defect Tolerance
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Doping Lanthanide into Perovskite Nanocrystals: Highly Improved and Expanded Optical Properties
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Cited by
Halide Ion Migration in Perovskite Nanocrystals and Nanostructures
Kamat, P. V., & Kuno, M. (2021) · Accounts of Chemical Research · doi:10.1021/acs.accounts.0c00749 · Cited by 219
Metadata
- Authors
- Mondal, N., De, A., & Samanta, A.
- Venue
- ACS Energy Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-11-21
- Volume
- 4
- Issue
- 1
- Pages
- 32-39
- ISSN
- 2380-8195 (ISSN-L)
- OpenAlex
- W2901518879
- Cited by
- 435
- References
- 42
- FWCI
- 20.89
- Type
- journal article
- Language
- en
- Open access
- closed
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- Mondal, N., De, A., & Samanta, A. (2019). Achieving Near-Unity Photoluminescence Efficiency for Blue-Violet-Emitting Perovskite Nanocrystals. ACS Energy Letters. https://doi.org/10.1021/acsenergylett.8b01909
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