Realizing Highly Stable Quasi-2D Blue Perovskite Light-Emitting Diodes Using Energy Cascades Generated by Biomolecule-Derived Plasmonic Nanostructures
Journal
ACS Applied Materials and Interfaces
Journal Volume
17
Journal Issue
1
Start Page
1782
End Page
1791
ISSN
1944-8244
1944-8252
Date Issued
2024-12-17
Author(s)
Loganathan Veeramuthu
Fang-Rong Liang
Chiung-Han Chen
Fang-Cheng Liang
Yin-Ti Lai
Zhen-Li Yan
Archana Pandiyan
Chun-Tse Tsai
Wei-Cheng Chen
Jin-Cheng Lin
Mei-Hsin Chen
Chi-Ching Kuo
DOI
10.1021/acsami.4c11447
Abstract
Blue perovskite light-emitting diodes (LEDs) lag behind green and red LEDs, which have made considerable strides in efficiency and stability. The main disadvantage is its unmodulated phase domains and low energy transfer efficiency, which impede the efficiency, optical purity, and operational stability of the devices. Herein, we show that using biomolecule-derived plasmonic nanostructures can significantly promote defect passivation, van der Waals gap reduction, and cascade energy transfer through synergistic small-molecule interactions and localized surface plasmonic contributions, thereby improving the electroluminescence (EL) properties and operational stability. The designed blue quasi-2D perovskite LED benefits from the synergistic effect with a higher external quantum efficiency (EQE = 3.51%), EL spectral stability, and superior long-term operational stability. These results validate the optimization of structural and energy cascades of quasi-2D perovskites through a simple and environmentally friendly biomolecular tailorable plasmonic nanostructure approach, paving the way for the development of sustainable electronics.
Subjects
blue emission
light-emitting diodes
localized surface plasmon resonance
photoluminescence
quasi-2D perovskites
silver nanoparticles
stability
SDGs
Publisher
American Chemical Society (ACS)
Type
journal article