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

Ultrafast dynamics in QD based photoelectrochemical cells

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

^*Corresponding author for this work

Department of Chemistry

Lund University

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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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.

Original language	English
Title of host publication	Physical Chemistry of Semiconductor Materials and Interfaces XVIII
Editors	Christian Nielsen , Daniel Congreve , Hugo A. Bernstein , Felix Deschler
Number of pages	6
Volume	11084
Publisher	SPIE - International Society for Optical Engineering
Publication date	2019
Chapter	110840L
DOIs	https://doi.org/10.1117/12.2529771
Publication status	Published - 2019
Event	SPIE Nanoscience + Engineering 2019 - San Diego, United States Duration: 11 Aug 2019 → 15 Aug 2019

Conference

Conference	SPIE Nanoscience + Engineering 2019
Country/Territory	United States
City	San Diego
Period	11/08/2019 → 15/08/2019
Sponsor	SPIE

Series	Proceedings of SPIE - The International Society for Optical Engineering
ISSN	0277-786X

Keywords

Femtosecond spectro-electrochemistry
Quantum Dots
CdSe
Trion
Exciton

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Honarfar, A., Mourad, H., Abdellah, M., Chabera, P., Pankratova, G., Gorton, L., Zheng, K., & Pullerits, T. (2019). Ultrafast dynamics in QD based photoelectrochemical cells. In C. N., D. C., H. A. B., & F. D. (Eds.), Physical Chemistry of Semiconductor Materials and Interfaces XVIII (Vol. 11084). SPIE - International Society for Optical Engineering. https://doi.org/10.1117/12.2529771

Honarfar, Alireza ; Mourad, Hassan ; Abdellah, Mohamed et al. / Ultrafast dynamics in QD based photoelectrochemical cells. Physical Chemistry of Semiconductor Materials and Interfaces XVIII. editor / Christian Nielsen ; Daniel Congreve ; Hugo A. Bernstein ; Felix Deschler. Vol. 11084 SPIE - International Society for Optical Engineering, 2019. (Proceedings of SPIE - The International Society for Optical Engineering).

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title = "Ultrafast dynamics in QD based photoelectrochemical cells",

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.",

keywords = "Femtosecond spectro-electrochemistry, Quantum Dots, CdSe, Trion, Exciton",

author = "Alireza Honarfar and Hassan Mourad and Mohamed Abdellah and Pavel Chabera and Galina Pankratova and Lo Gorton and Kaibo Zheng and T{\"o}nu Pullerits",

year = "2019",

doi = "10.1117/12.2529771",

language = "English",

volume = "11084",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE - International Society for Optical Engineering",

editor = "{Christian Nielsen} and {Daniel Congreve} and {Hugo A. Bernstein} and {Felix Deschler}",

booktitle = "Physical Chemistry of Semiconductor Materials and Interfaces XVIII",

note = "SPIE Nanoscience + Engineering 2019 ; Conference date: 11-08-2019 Through 15-08-2019",

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Honarfar, A, Mourad, H, Abdellah, M, Chabera, P, Pankratova, G, Gorton, L, Zheng, K & Pullerits, T 2019, Ultrafast dynamics in QD based photoelectrochemical cells. in CN, DC, HAB & FD (eds), Physical Chemistry of Semiconductor Materials and Interfaces XVIII. vol. 11084, SPIE - International Society for Optical Engineering, Proceedings of SPIE - The International Society for Optical Engineering, SPIE Nanoscience + Engineering 2019, San Diego, California, United States, 11/08/2019. https://doi.org/10.1117/12.2529771

Ultrafast dynamics in QD based photoelectrochemical cells. / Honarfar, Alireza; Mourad, Hassan; Abdellah, Mohamed et al.
Physical Chemistry of Semiconductor Materials and Interfaces XVIII. ed. / Christian Nielsen; Daniel Congreve; Hugo A. Bernstein; Felix Deschler. Vol. 11084 SPIE - International Society for Optical Engineering, 2019. (Proceedings of SPIE - The International Society for Optical Engineering).

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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T1 - Ultrafast dynamics in QD based photoelectrochemical cells

AU - Honarfar, Alireza

AU - Mourad, Hassan

AU - Abdellah, Mohamed

AU - Chabera, Pavel

AU - Pankratova, Galina

AU - Gorton, Lo

AU - Zheng, Kaibo

AU - Pullerits, Tönu

PY - 2019

Y1 - 2019

N2 - 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.

AB - 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.

KW - Femtosecond spectro-electrochemistry

KW - Quantum Dots

KW - CdSe

KW - Trion

KW - Exciton

U2 - 10.1117/12.2529771

DO - 10.1117/12.2529771

M3 - Article in proceedings

VL - 11084

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Physical Chemistry of Semiconductor Materials and Interfaces XVIII

A2 - , Christian Nielsen

A2 - , Daniel Congreve

A2 - , Hugo A. Bernstein

A2 - , Felix Deschler

PB - SPIE - International Society for Optical Engineering

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Y2 - 11 August 2019 through 15 August 2019

ER -

Honarfar A, Mourad H, Abdellah M, Chabera P, Pankratova G, Gorton L et al. Ultrafast dynamics in QD based photoelectrochemical cells. In CN, DC, HAB, FD, editors, Physical Chemistry of Semiconductor Materials and Interfaces XVIII. Vol. 11084. SPIE - International Society for Optical Engineering. 2019. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2529771

Ultrafast dynamics in QD based photoelectrochemical cells

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