光子上转换
超短脉冲
光电子学
半导体
光子
材料科学
红外线的
接口(物质)
能量转移
光子能量
自旋(空气动力学)
自旋转向
光学
物理
原子物理学
兴奋剂
散射
激光器
热力学
毛细管数
毛细管作用
复合材料
作者
Shuo Zhao,Cheng Sun,G. M. Xiang,Yongqing Zhang,Siyu He,Shuangshuang Li,Yizheng Jin,De‐Long Zhang,Haiming Zhu
标识
DOI:10.1002/anie.202420070
摘要
Solid state photon upconversion by triplet-triplet annihilation (TTA), particularly near-infrared (NIR)-to-blue upconversion, holds instant promise for enhancing optoelectronic and photochemical applications. Despite extensive studies, NIR-to-blue upconversion has remained particularly challenging and elusive due to inherent multiple energy-downhill processes in TTA upconversion. In this study, using atomically thin two dimensional (2D) monolayer semiconductor as a triplet sensitizer, we demonstrate an efficient and robust solid-state NIR-to-blue photon upconversion system. The ultrathin and flexible organic/2D bilayer heterostructure exhibits a NIR-to-blue upconversion with high quantum yield (Φ
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