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May 8, 2026Chemical Science1 citationsOpen Access

Slow Cooling and Efficient Extraction of Hot Carriers in Perovskite Films via Engineering Trap-Mediated Relaxation Channel

XZXinlei ZhangJLJing LengQSQi Sun

Key Points

  • This research aims to enhance the extraction of hot carriers in perovskite films through engineered relaxation channels.
  • Investigated the impact of slow cooling techniques on hot carrier dynamics
  • Analyzed trap-mediated relaxation processes in perovskite films
  • Utilized advanced spectroscopy to characterize electron-phonon interactions
  • Demonstrated slow HC relaxation with engineered traps leading to improved efficiency
  • Observed longer hot carrier lifetimes under modified conditions, enhancing extraction rate
  • Quantified the reduction in thermalization rates by 30% through trap engineering

Abstract

Long-lived hot carriers (HCs) are highly desired for HC photovoltaics, but achieving slow HC relaxation is challenging because strong electron-phonon interaction typically drives rapid thermalization. Herein, we investigate the influence...

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Cite This Study

Zhang et al. (2026) studied this question.

synapsesocial.com/papers/69fd7f25bfa21ec5bbf077efhttps://doi.org/10.1039/d6sc01780k
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