Improved Performance of Perovskite Light-Emitting Diodes by Quantum Confinement Effect in Perovskite Nanocrystals

In this study, we demonstrate an easy and reliable solution-processed technique using an extra adductive in the perovskite precursor solution. Using this method, a dense and uniform morphology with full surface coverage and highly fluorescent films with nanoscale crystal grains can be obtained. The...

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Bibliographic Details
Published in:Nanomaterials (Basel, Switzerland) Switzerland), 2018-06, Vol.8 (7), p.459
Main Authors: Chen, Lung-Chien, Tseng, Zong-Liang, Lin, Dai-Wei, Lin, Yu-Shiang, Chen, Sheng-Hui
Format: Article
Language:English
Subjects:
OAB
PeLEDs
perovskite
quantum confinement effect
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Summary:In this study, we demonstrate an easy and reliable solution-processed technique using an extra adductive in the perovskite precursor solution. Using this method, a dense and uniform morphology with full surface coverage and highly fluorescent films with nanoscale crystal grains can be obtained. The high exciton binding energy in the resulting films employing octylammonium bromide (OAB) adductives proved that high fluorescence originated from the quantum confinement effect. The corresponding perovskite light-emitting diodes (PeLEDs) that were based on this technique also exhibited excellent device performance.
ISSN:2079-4991
2079-4991
DOI:10.3390/nano8070459