Authors
Chao Zhong, Xin Wang, Haolin Luo, Ge Deng, Chengyu Luo, Yongshen Yu, Youjiang Pan, Kuibao Yu, Tailiang Guo, Hailong Hu, Fushan Li
Published in
The journal of physical chemistry letters. Volume 17. Issue 35. Pages 10174-10183. Sep 03, 2026.
Abstract
The rapid advancement of artificial intelligence drives advances in microdisplays for smart wearables and near-eye applications. This imposes extremely high-performance requirements for small-size pixels, while the miniaturization of conventional LEDs faces bottlenecks, including aggravated sidewall defects and efficiency loss. Quantum dot (QD) light-emitting devices have emerged as promising candidates for next-generation microdisplays. High-precision micro-nano assembly of QD pixels is a key challenge. Traditional techniques, including spin-coating and printing, are poorly compatible with complex functional substrates, limiting their application. Herein, we propose a novel microvia electrostatic adsorption self-assembly (MEAA) strategy. Driven by electrostatic induction, QDs can selectively assemble within nanoscale microvia templates. Monochromatic arrays (42 333 pixels per inch (PPI)) and 2540 PPI full-color arrays were successfully prepared. The rigid and flexible monochromatic devices achieved EQEs of 25.92% and 26.67%, respectively (8467 PPI). The method adapts to any surface without complicated electrodes or external electric fields, providing a new pathway for QD microdisplay fabrication.
PMID:
42691362
Bibliographic data and abstract were imported from PubMed on 04 Sep 2026.
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