Ji Seunghyeon, Bae Sa-Rang, Hu Luhing, Hoang Anh Tuan, Seol Myeong Jin, Hong Juyeong, Katiyar Ajit Kumar, Kim Beom Jin, Xu Duo, Kim Soo Young, Ahn Jong-Hyun
School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, Republic of Korea.
Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea.
Adv Mater. 2024 Jan;36(2):e2309531. doi: 10.1002/adma.202309531. Epub 2023 Nov 28.
The uniform deposition of perovskite light-emitting diodes (PeLEDs) and their integration with backplane thin-film transistors (TFTs) remain challenging for large-area display applications. Herein, an active-matrix PeLED display fabricated via the heterogeneous integration of cesium lead bromide LEDs and molybdenum disulfide (MoS )-based TFTs is presented. The single-source evaporation method enables the deposition of highly uniform perovskite thin films over large areas. PeLEDs are integrated with MoS TFTs to fabricate an active-matrix PeLED display with an 8 × 8 array, which exhibits excellent brightness control capability and high switching speed. This study demonstrates the potential of PeLEDs as candidates for next-generation displays and presents a novel approach for fabricating optoelectronic devices via the heterogeneous integration of 2D materials and perovskites, thereby paving the way toward the fabrication of practical future optoelectronic systems.
对于大面积显示应用而言，钙钛矿发光二极管（PeLED）的均匀沉积及其与背板薄膜晶体管（TFT）的集成仍然具有挑战性。在此，展示了一种通过溴化铯铅发光二极管与基于二硫化钼（MoS ）的薄膜晶体管的异质集成制造的有源矩阵PeLED显示器。单源蒸发法能够在大面积上沉积高度均匀的钙钛矿薄膜。将PeLED与MoS薄膜晶体管集成，制造出具有8×8阵列的有源矩阵PeLED显示器，该显示器具有出色的亮度控制能力和高开关速度。这项研究证明了PeLED作为下一代显示器候选材料的潜力，并提出了一种通过二维材料和钙钛矿的异质集成制造光电器件的新方法，从而为制造实用的未来光电子系统铺平了道路。
