Enhancing exciton binding energy and photoluminescence of formamidinium lead bromide by reducing its dimensions to 2D nanoplates for producing efficient light emitting diodes

Nanoscale ◽  
2018 ◽  
Vol 10 (44) ◽  
pp. 20611-20617 ◽  
Author(s):  
Feiming Li ◽  
Lan Yang ◽  
Zhixiong Cai ◽  
Ke Wei ◽  
Fangyuan Lin ◽  
...  
Keyword(s):  
Binding Energy ◽  
Light Emitting Diodes ◽  
Exciton Binding Energy ◽  
Light Emitting ◽  
Lead Bromide

Fabricating of FAPbBr3nanoplates for producing efficient light emitting diodes.

Quasi-2D organic cation-doped formamidinium lead bromide (FAPbBr3) perovskite light-emitting diodes by long alkyl chain

2020 ◽  
Vol 79 ◽  
pp. 105626 ◽  
Author(s):  
Hassan Alehdaghi ◽  
Anil Kanwat ◽  
Mohammad Zirak ◽  
Eric Moyen ◽  
Won-Chul Choi ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Cation ◽  
Alkyl Chain ◽  
Light Emitting ◽  
Lead Bromide ◽  
Long Alkyl Chain

Suppressing Auger Recombination in Cesium Lead Bromide Perovskite Nanocrystal Film for Bright Light-Emitting Diodes

2020 ◽  
Vol 11 (21) ◽  
pp. 9371-9378
Author(s):  
Ji-Song Yao ◽  
Jia-Chen Zhang ◽  
Li Wang ◽  
Kun-Hua Wang ◽  
Xue-Chen Ru ◽  
...  
Keyword(s):  
Auger Recombination ◽  
Light Emitting Diodes ◽  
Bright Light ◽  
Light Emitting ◽  
Lead Bromide

scholarly journals Self-assembly of a robust hydrogen-bonded octylphosphonate network on cesium lead bromide perovskite nanocrystals for light-emitting diodes

Nanoscale ◽  
2019 ◽  
Vol 11 (25) ◽  
pp. 12370-12380 ◽  
Author(s):  
Alasdair A. M. Brown ◽  
Thomas J. N. Hooper ◽  
Sjoerd A. Veldhuis ◽  
Xin Yu Chin ◽  
Annalisa Bruno ◽  
...  
Keyword(s):  
Self Assembly ◽  
Ligand Exchange ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Perovskite Nanocrystals ◽  
Lead Bromide ◽  
Hydrogen Bonded

Ligand exchange with octylphosphonate enhances PLQY and LED efficiency.

scholarly journals High-Efficiency Light-Emitting Diodes Based on Formamidinium Lead Bromide Nanocrystals and Solution Processed Transport Layers

2018 ◽  
Vol 30 (18) ◽  
pp. 6231-6235 ◽  
Author(s):  
Francesco Di Stasio ◽  
Iñigo Ramiro ◽  
Yu Bi ◽  
Sotirios Christodoulou ◽  
Alexandros Stavrinadis ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Solution Processed ◽  
Light Emitting ◽  
Lead Bromide

Large-Area Cesium Lead Bromide Perovskite Light-Emitting Diodes Realized by Incorporating a Hybrid Additive

2020 ◽  
Vol 2 (4) ◽  
pp. 1113-1121 ◽  
Author(s):  
Ying Suet Lau ◽  
Zhaojue Lan ◽  
Ning Li ◽  
Furong Zhu
Keyword(s):  
Light Emitting Diodes ◽  
Large Area ◽  
Light Emitting ◽  
Lead Bromide

scholarly journals Methylammonium Lead Bromide Perovskite Light-Emitting Diodes by Chemical Vapor Deposition

2017 ◽  
Vol 8 (14) ◽  
pp. 3193-3198 ◽  
Author(s):  
Matthew R. Leyden ◽  
Lingqiang Meng ◽  
Yan Jiang ◽  
Luis K. Ono ◽  
Longbin Qiu ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Light Emitting Diodes ◽  
Chemical Vapor ◽  
Light Emitting ◽  
Lead Bromide

EXCITON BINDING ENERGY OF ELECTRONIC POLYMERS: A FIRST PRINCIPLES STUDY

2008 ◽  
Vol 07 (04) ◽  
pp. 517-530 ◽  
Author(s):  
LINGYUN ZHU ◽  
YUANPING YI ◽  
LIPING CHEN ◽  
ZHIGANG SHUAI
Keyword(s):  
Binding Energy ◽  
First Principles ◽  
Density Functional ◽  
Exciton Binding Energy ◽  
Functional Theory ◽  
Light Emitting ◽  
Polymer Electronics ◽  
Key Factor ◽  
Efficient Charge ◽  
Long Time

Exciton binding energy (E b ) is a key factor for the polymer electronics as well as for the fundamental polymer physics, which has been controversial since long time. Light-emitting polymer requires a large E b so that the charge recombination dominates. But, the photovoltaic polymers need small E b to allow efficient charge separation. First-principles Density Functional Theory (DFT) is employed to calculate E b for polydiacetylene (PDA), trans-polyacetylene (PA), polythiophene (PT), poly(2,5-thienylenevinylene) (PTV), and poly(p-phenylene vinylene) (PPV). We find that the hybrid B3LYP, B972, PBE1PBE, and B1B95 functionals with 20–25% amount of exact HF exchange can give reasonable results and predict E b is around 0.1–0.6 eV for these π-conjugated polymers.

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