High Charge Carrier Mobilities and Lifetimes in Organolead Trihalide Perovskites

2013/12/20 by Christian Wehrenfennig, Giles E. Eperon, Michael B. Johnston +2 · 3 citations
Engineering · Materials Science · #Chalcogenide Semiconductor Thin Films #Perovskite Materials and Applications #Quantum Dots Synthesis And Properties

paper · pdf · doi:10.1002/adma.201305172

openalex publication_date 2013/12/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

Organolead trihalide perovskites are shown to exhibit the best of both worlds: charge-carrier mobilities around 10 cm2 V−1 s−1 and low bi-molecular charge-recombination constants. The ratio of the two is found to defy the Langevin limit of kinetic charge capture by over four orders of magnitude. This mechanism causes long (micrometer) charge-pair diffusion lengths crucial for flat-heterojunction photovoltaics.

Cited by

• Underlying Framework of All-optical Controlled Synaptic Devices for Neuromorphic Computing
• Flexoelectric domain walls enable charge separation and transport in cubic perovskites
• Improved Charge Carrier Dynamics of CH₃NH₃PbI₃ Perovskite Films Synthesized by Means of Laser-Assisted Crystallization