Charge Photogeneration and Transport in AgBiS2 Nanocrystal Films for Photovoltaics

Silke L. Diedenhofen; Maria Bernechea; Kevin M. Felter; Ferdinand C. Grozema; Laurens D.A. Siebbeles

doi:10.1002/solr.201900075

Charge Photogeneration and Transport in AgBiS₂ Nanocrystal Films for Photovoltaics

Silke L. Diedenhofen^*, Maria Bernechea, Kevin M. Felter, Ferdinand C. Grozema, Laurens D.A. Siebbeles

^*Corresponding author for this work

ChemE/Opto-electronic Materials

Research output: Contribution to journal › Article › Scientific › peer-review

19 Citations (Scopus)

15 Downloads (Pure)

Abstract

Solution-processed AgBiS₂ nanocrystal films are a promising material for nontoxic, earth-abundant solar cells. While solar cells with good device efficiency are demonstrated, so far, hardly anything is known about charge generation, transport, and recombination processes in these films. Here, a photoinduced time-resolved microwave conductivity study on AgBiS₂ nanocrystal films is presented. By modeling the experimental data with density-dependent recombination processes, the product of the temperature-dependent electron and hole quantum yield and mobility, and the electron and hole recombination kinetics are determined.

Original language	English
Article number	1900075
Number of pages	7
Journal	Solar RRL
Volume	3
Issue number	8
DOIs	https://doi.org/10.1002/solr.201900075
Publication status	Published - 2019

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

AgBiS nanocrystals
charge decay
charge mobility
diffusion length
microwave conductivity

Access to Document

10.1002/solr.201900075

Solar RRL - 2019 - Diedenhofen - Charge Photogeneration and Transport in AgBiS2 Nanocrystal Films for PhotovoltaicsFinal published version, 685 KB

Cite this

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title = "Charge Photogeneration and Transport in AgBiS2 Nanocrystal Films for Photovoltaics",

abstract = "Solution-processed AgBiS2 nanocrystal films are a promising material for nontoxic, earth-abundant solar cells. While solar cells with good device efficiency are demonstrated, so far, hardly anything is known about charge generation, transport, and recombination processes in these films. Here, a photoinduced time-resolved microwave conductivity study on AgBiS2 nanocrystal films is presented. By modeling the experimental data with density-dependent recombination processes, the product of the temperature-dependent electron and hole quantum yield and mobility, and the electron and hole recombination kinetics are determined.",

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AU - Siebbeles, Laurens D.A.

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