Large-Scale 2D Perovskite Nanocrystals Photodetector Array via Ultrasonic Spray Synthesis

Large-Scale 2D Perovskite Nanocrystals Photodetector Array via Ultrasonic Spray Synthesis

© 2025 The Author(s). Advanced Materials published by Wiley‐VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 37(2025), 12 vom: 01. März, Seite e2417761
1. Verfasser: Lee, Yoon Ho (VerfasserIn)
Weitere Verfasser: Lee, Won-June, Lee, Gang San, Park, Jee Yung, Yuan, Biao, Won, Yousang, Mun, Jungho, Yang, Hanjun, Baek, Sung-Doo, Lee, Haeun, Oh, Joon Hak, Pennycook, Timothy J, Kim, Gwangwoo, Mei, Jianguo, Dou, Letian
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2025
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article 2D materials high‐performance photodetector array large‐scale nanofabrication perovskite nanocrystals ultrasonic spray synthesis
Beschreibung
Zusammenfassung:© 2025 The Author(s). Advanced Materials published by Wiley‐VCH GmbH.
2D perovskite (PVSK) single crystals have received significant attention due to their unique optical and optoelectronic properties. However, current synthesis methods face limitations, particularly in large-area fabrication, which remain critical barriers to practical applications. In this study, the synthesis of red/green/purple-blue-colored 2D PVSK nanocrystals over a large area (4-inch wafer) and the fabrication of high-performance photodetector arrays are presented via a facile yet efficient spray-coating approach with a liquid-bridge transport effect. The photodetector array achieves 100% working yield, high photo-responsivity (1.5 × 106 A W-1) and specific-detectivity (1.1 × 1016 Jones) with competitive photomapping characteristics. An intelligent vision system for automatic shape recognition is further demonstrated with a recognition rate exceeding 90%. This study provides significant advances in the scalable synthesis of nanoscale 2D PVSK crystals, their integration into large-area optoelectronic devices, and their potential use in artificial-intelligence systems
Beschreibung:Date Revised 28.03.2025
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202417761