Advanced Materials· 2013Q1
High Charge Carrier Mobilities and Lifetimes in Organolead Trihalide Perovskites
- 3,204citations
- Q1SCImago
- 2013year
Short summary
Organolead trihalide perovskites achieve charge-carrier mobilities of ~10 cm² V⁻¹ s⁻¹ and recombination constants over four orders of magnitude below the Langevin limit, enabling micrometer-scale diffusion lengths.
AI-generated from the title and abstract; the full text is not read.
Key points
- Achieved charge-carrier mobilities of approximately 10 cm² V⁻¹ s⁻¹.
- Measured bi-molecular charge-recombination constants far below the Langevin limit (over four orders of magnitude).
- The mobility-to-recombination ratio defies the Langevin limit for kinetic charge capture.
- Resulting in long (micrometer) charge-pair diffusion lengths.
AI-generated from the title and abstract; the full text is not read.
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.
The authors' abstract, as published at the source. Advanced Materials, 2013 · DOI ↗
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Field: Electrical and Electronic Engineering
Electrical and Electronic EngineeringEngineering