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Measuring Energetic Disorder in Organic Semiconductors Using the Photogenerated Charge-Separation Efficiency

Samantha Hood, Nasim Zarrabi, Paul Meredith, Ivan Kassal, Ardalan Armin Orcid Logo

The Journal of Physical Chemistry Letters, Pages: 3863 - 3870

Swansea University Author: Ardalan Armin Orcid Logo

Abstract

Understanding and quantifying energetic disorder in organic semiconductors continues to attract attention because of its significant impact on the transport physics of these technologically important materials. Here, we show that the energetic disorder of organic semiconductors can be determined fro...

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Published in: The Journal of Physical Chemistry Letters
ISSN: 1948-7185 1948-7185
Published: 2019
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa50987
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Abstract: Understanding and quantifying energetic disorder in organic semiconductors continues to attract attention because of its significant impact on the transport physics of these technologically important materials. Here, we show that the energetic disorder of organic semiconductors can be determined from the relationship between the internal quantum efficiency of charge generation and the frequency of the incident light. Our results for a number of materials suggest that energetic disorder in organic semiconductors could be larger than previously reported, and we advance ideas as to why this may be the case.
Keywords: Organic semiconductor, energetic disorder, internal quantum efficiency
College: College of Science
Start Page: 3863
End Page: 3870