Trap-Enabled Long-Distance Carrier Transport in Perovskite Quantum Wells

• DOI: 10.1021/jacs.0c06572
• Publication Date: 2020-08-05T19:52:10Z
• Authors: Chunyi Zhao; Wenming Tian; Qi Sun; Zixi Yin; Jing Leng; Shiping Wang; Junxue Liu; Kaifeng Wu; Shengye Jin
• Keywords: Charge carrier; Electron Mobility; Trap (plumbing)

Layered two-dimensional (2D) hybrid perovskites are naturally formed multiple quantum well (QW) materials with promising applications in and optoelectronic devices. In principle, the transport of excitons 2D is limited by their short lifetime small mobility to a distance within few hundred nanometers. Herein, we report an observation long-distance carrier over 2 5 μm various thicknesses. Such long enabled trap-induced exciton dissociation into long-lived nonluminescent electron-hole separated state, followed trap-mediated charge process. This unique property makes comparable 3D other traditional semiconductor QWs terms highlights potential application as efficient energy/charge-delivery material.