Evidence map›Paper›PMID 36748267›Full record

ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2023

Vacuum-Deposited Inorganic Perovskite Light-Emitting Diodes with External Quantum Efficiency Exceeding 10% via Composition and Crystallinity Manipulation of Emission Layer under High Vacuum.

Chung-An Hsieh, Guang-Hsun Tan, Yung-Tang Chuang, Hao-Cheng Lin, Po-Ting Lai, Pei-En Jan, Bo-Han Chen, Chih-Hsuan Lu, Shang-Da Yang, Kai-Yuan Hsiao and 3 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Chung-An HsiehDepartment of Photonics, National Yang MingChiao Tung University, No. 1001 University Road, Hsinchu, 300, Taiwan.
Guang-Hsun TanDepartment of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan.
Yung-Tang ChuangDepartment of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan.
Hao-Cheng LinDepartment of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan.
Po-Ting LaiDepartment of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan.
Pei-En JanDepartment of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan.
Bo-Han ChenInstitute of Photonics Technologies, National Tsing Hua University, Hsinchu, 30013, Taiwan.
Chih-Hsuan LuInstitute of Photonics Technologies, National Tsing Hua University, Hsinchu, 30013, Taiwan.
Shang-Da YangInstitute of Photonics Technologies, National Tsing Hua University, Hsinchu, 30013, Taiwan.
Kai-Yuan HsiaoDepartment of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan.
Ming-Yen LuDepartment of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan.
Li-Yin ChenDepartment of Photonics, National Yang MingChiao Tung University, No. 1001 University Road, Hsinchu, 300, Taiwan.
Hao-Wu LinDepartment of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan.ORCID https://orcid.org/0000-0003-4216-7995

Funding

National Science and Technology Council of Taiwan 110-2221-E-A49-146National Science and Technology Council of Taiwan 111-2634-F-007-007National Science and Technology Council of Taiwan 112-2636-E-007-002
6 · The paper itself

Abstract

Although vacuum-deposited metal halide perovskite light-emitting diodes (PeLEDs) have great promise for use in large-area high-color-gamut displays, the efficiency of vacuum-sublimed PeLEDs currently lags that of solution-processed counterparts. In this study, highly efficient vacuum-deposited PeLEDs are prepared through a process of optimizing the stoichiometric ratio of the sublimed precursors under high vacuum and incorporating ultrathin under- and upper-layers for the perovskite emission layer (EML). In contrast to the situation in most vacuum-deposited organic light-emitting devices, the properties of these perovskite EMLs are highly influenced by the presence and nature of the upper- and presublimed materials, thereby allowing us to enhance the performance of the resulting devices. By eliminating Pb° formation and passivating defects in the perovskite EMLs, the PeLEDs achieve an outstanding external quantum efficiency (EQE) of 10.9% when applying a very smooth and flat geometry; it reaches an extraordinarily high value of 21.1% when integrating a light out-coupling structure, breaking through the 10% EQE milestone of vacuum-deposited PeLEDs.

Indexed as

inorganic halide perovskitelight-emitting diodespassivationsmall moleculevacuum deposition

Identifiers

PMID36748267
PMCPMC10074115

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.