Journal article 351 views
A Universal Perovskite Nanocrystal Ink for High‐Performance Optoelectronic Devices
Hochan Song,
Jonghee Yang 
,
Woo Hyeon Jeong ,
Jeongjae Lee,
Tack Ho Lee,
Jung Won Yoon,
Hajin Lee,
Alexandra J. Ramadan,
Robert D. J. Oliver,
Seong Chan Cho,
Seul Gi Lim,
Ji Won Jang,
Zhongkai Yu,
Jae Taek Oh,
Eui Dae Jung,
Myoung Hoon Song,
Sung Heum Park,
James Durrant ,
Henry J. Snaith,
Sang Uck Lee,
Bo Ram Lee,
Hyosung Choi
,
Woo Hyeon Jeong ,
Jeongjae Lee,
Tack Ho Lee,
Jung Won Yoon,
Hajin Lee,
Alexandra J. Ramadan,
Robert D. J. Oliver,
Seong Chan Cho,
Seul Gi Lim,
Ji Won Jang,
Zhongkai Yu,
Jae Taek Oh,
Eui Dae Jung,
Myoung Hoon Song,
Sung Heum Park,
James Durrant ,
Henry J. Snaith,
Sang Uck Lee,
Bo Ram Lee,
Hyosung Choi
Advanced Materials, Volume: 35, Issue: 8, Start page: 2209486
Swansea University Author:
James Durrant
Full text not available from this repository: check for access using links below.
DOI (Published version): 10.1002/adma.202209486
Abstract
Semiconducting lead halide perovskite nanocrystals (PNCs) are regarded as promising candidates for next-generation optoelectronic devices due to their solution processability and outstanding optoelectronic properties. While the field of light-emitting diodes (LEDs) and photovoltaics (PVs), two prime...
| Published in: | Advanced Materials |
|---|---|
| ISSN: | 0935-9648 1521-4095 |
| Published: |
Wiley
2023
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa62270 |
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| Abstract: |
Semiconducting lead halide perovskite nanocrystals (PNCs) are regarded as promising candidates for next-generation optoelectronic devices due to their solution processability and outstanding optoelectronic properties. While the field of light-emitting diodes (LEDs) and photovoltaics (PVs), two prime examples of optoelectronic devices, has recently seen a multitude of efforts toward high-performance PNC-based devices, realizing both devices with high efficiencies and stabilities through a single PNC processing strategy has remained a challenge. In this work, diphenylpropylammonium (DPAI) surface ligands, found through a judicious ab-initio-based ligand search, are shown to provide a solution to this problem. The universal PNC ink with DPAI ligands presented here, prepared through a solution-phase ligand-exchange process, simultaneously allows single-step processed LED and PV devices with peak electroluminescence external quantum efficiency of 17.00% and power conversion efficiency of 14.92% (stabilized output 14.00%), respectively. It is revealed that a careful design of the aromatic rings such as in DPAI is the decisive factor in bestowing such high performances, ease of solution processing, and improved phase stability up to 120 days. This work illustrates the power of ligand design in producing PNC ink formulations for high-throughput production of optoelectronic devices; it also paves a path for “dual-mode” devices with both PV and LED functionalities. |
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| Keywords: |
light-emitting diodes; perovskite nanocrystals; photovoltaics; solution-phase ligand exchange |
| College: |
Faculty of Science and Engineering |
| Funders: |
National Research Foundation of Korea. Grant Number: NRF-2022R1A2C4002248;NRF-2021M3H4A1A02049006;NRF-2019R1A6A1A10073437;NRF-2020R1A4A1018163;NRF-2022R1A2C1002764;NRF-2022H1D3A3A01077343;
EPSRC - EP/T028513/1 |
| Issue: |
8 |
| Start Page: |
2209486 |