Ultrafast dynamics in QD based photoelectrochemical cells

Alireza Honarfar; Hassan Mourad; Mohamed Abdellah; Pavel Chabera; Galina Pankratova; Lo Gorton; Kaibo Zheng; Tönu Pullerits

doi:10.1117/12.2529771

9 September 2019 Ultrafast dynamics in QD based photoelectrochemical cells

Alireza Honarfar, Hassan Mourad, Mohamed Abdellah, Pavel Chabera, Galina Pankratova, Lo Gorton, Kaibo Zheng, Tönu Pullerits

Author Affiliations +

Proceedings Volume 11084, Physical Chemistry of Semiconductor Materials and Interfaces XVIII; 110840L (2019) https://doi.org/10.1117/12.2529771
Event: SPIE Nanoscience + Engineering, 2019, San Diego, California, United States

Abstract

We have prepared electrodes for photo-electro-chemical cells which have enabled to pre-charge colloidal quantum dots in well-controlled fashion. Femtosecond transient absorption measurements were carried out revealing clear speed-up of the photo-induced charge carrier dynamics, particularly the recombination. Such studies allow to understand the behavior of light harvesting materials in operational conditions of optoelectronic devices giving new recipes for improvements.

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Citation Download Citation

Alireza Honarfar, Hassan Mourad, Mohamed Abdellah, Pavel Chabera, Galina Pankratova, Lo Gorton, Kaibo Zheng, and Tönu Pullerits "Ultrafast dynamics in QD based photoelectrochemical cells", Proc. SPIE 11084, Physical Chemistry of Semiconductor Materials and Interfaces XVIII, 110840L (9 September 2019); https://doi.org/10.1117/12.2529771

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