Rubidium Doping for Enhanced Performance of Highly Efficient Formamidinium-Based Perovskite Light-Emitting Diodes

ACS Applied Materials & Interfaces
Yifei ShiZhaoxin Wu

Abstract

Organometal halide perovskites (OHPs) have become the most promising optoelectronic material in the past few years with a myriad of applications in the photovoltaic, light-emitting, and laser fields. However, for light-emitting applications, the low photoluminescence quantum yield (PLQY) of OHP film is critical to hinder the efficiency improvement of OHP-film-based light-emitting diodes (PeLEDs). Herein, we study the effects of rubidium incorporation on the crystal growth, structure, and photoelectric and optical properties of formamidinium-lead-bromide-based (FAPbBr3-based) perovskite films and light-emission performance of PeLEDs. It is found that rubidium incorporation can significantly enhance the PLQY of FAPbBr3 film by suppressing the trap density and thus improve the withstand voltage as well as the performance of PeLEDs. When FAPbBr3 film with optimal Rb doping ratio is employed as the light emitter of PeLEDs, the maximum luminance and current efficiency is enhanced by ∼10-fold and ∼5-fold to 66 353 cd/m2 and 24.22 cd/A compared to the controlled device, respectively, the record performance based on FAPbBr3 PeLEDs so far. The enhanced performance can be chiefly attributed to the increase of PLQY and decrease of trap def...Continue Reading

References

Apr 16, 2009·Journal of the American Chemical Society·Akihiro KojimaTsutomu Miyasaka
Feb 21, 2014·Angewandte Chemie·Norman PelletMichael Grätzel
Mar 19, 2014·Nature Materials·Guichuan XingTze Chien Sum
Apr 24, 2014·Advanced Materials·Christian WehrenfennigLaura M Herz
Aug 5, 2014·Nature Nanotechnology·Zhi-Kuang TanRichard H Friend
May 8, 2015·Nature Nanotechnology·Samuel D Stranks, Henry J Snaith
Aug 12, 2015·The Journal of Physical Chemistry Letters·Oscar A Jaramillo-QuinteroIvan Mora-Sero
Apr 17, 2014·The Journal of Physical Chemistry Letters·Felix DeschlerRichard H Friend
Aug 19, 2015·The Journal of Physical Chemistry Letters·Fabian C HanuschPablo Docampo
Jan 2, 2016·The Journal of Physical Chemistry Letters·Natalia YantaraSubodh Mhaisalkar
Jan 15, 2016·Science Advances·Dongqin BiAnders Hagfeldt
May 27, 2016·Nature Communications·Adam D WrightLaura M Herz
Jun 24, 2016·Advanced Materials·Jinwoo ByunTae-Woo Lee
Jun 28, 2016·Nature Nanotechnology·Mingjian YuanEdward H Sargent
Jul 12, 2017·Advanced Materials·Haizhu SunDwight S Seferos
Jun 1, 2015·Chemical Science·Gregor KieslichAnthony K Cheetham

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Citations

Apr 19, 2018·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Weiyin GaoZhaoxin Wu
Jul 1, 2020·Nanomaterials·Dongxiang LuoBaiquan Liu
Feb 18, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Yongqiang JiArshad Saleem Bhatti
Mar 18, 2021·Reports on Progress in Physics·Ziming ChenHin-Lap Yip
Jun 18, 2021·ACS Nano·Amrita DeyLakshminarayana Polavarapu

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