A universal Urbach rule for disordered organic semiconductors

The sub-gap absorption coefficient in organic semiconductors is often characterized by Urbach energies, which quantify both structural and dynamic disorders, yet the fundamental is not well-understood. Here, the authors provide a strategy to determine excitonic disorder energy, and reveal that absor...

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Autores principales:	Christina Kaiser, Oskar J. Sandberg, Nasim Zarrabi, Wei Li, Paul Meredith, Ardalan Armin
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Science Q
Acceso en línea:	https://doaj.org/article/ad787c26858b40d8bfceffc33202a614
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spelling	oai:doaj.org-article:ad787c26858b40d8bfceffc33202a6142021-12-02T14:34:06ZA universal Urbach rule for disordered organic semiconductors10.1038/s41467-021-24202-92041-1723https://doaj.org/article/ad787c26858b40d8bfceffc33202a6142021-06-01T00:00:00Zhttps://doi.org/10.1038/s41467-021-24202-9https://doaj.org/toc/2041-1723The sub-gap absorption coefficient in organic semiconductors is often characterized by Urbach energies, which quantify both structural and dynamic disorders, yet the fundamental is not well-understood. Here, the authors provide a strategy to determine excitonic disorder energy, and reveal that absorption at energies well below the gap is universally dominated by thermal broadening.Christina KaiserOskar J. SandbergNasim ZarrabiWei LiPaul MeredithArdalan ArminNature PortfolioarticleScienceQENNature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Science Q
spellingShingle	Science Q Christina Kaiser Oskar J. Sandberg Nasim Zarrabi Wei Li Paul Meredith Ardalan Armin A universal Urbach rule for disordered organic semiconductors
description	The sub-gap absorption coefficient in organic semiconductors is often characterized by Urbach energies, which quantify both structural and dynamic disorders, yet the fundamental is not well-understood. Here, the authors provide a strategy to determine excitonic disorder energy, and reveal that absorption at energies well below the gap is universally dominated by thermal broadening.
format	article
author	Christina Kaiser Oskar J. Sandberg Nasim Zarrabi Wei Li Paul Meredith Ardalan Armin
author_facet	Christina Kaiser Oskar J. Sandberg Nasim Zarrabi Wei Li Paul Meredith Ardalan Armin
author_sort	Christina Kaiser
title	A universal Urbach rule for disordered organic semiconductors
title_short	A universal Urbach rule for disordered organic semiconductors
title_full	A universal Urbach rule for disordered organic semiconductors
title_fullStr	A universal Urbach rule for disordered organic semiconductors
title_full_unstemmed	A universal Urbach rule for disordered organic semiconductors
title_sort	universal urbach rule for disordered organic semiconductors
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/ad787c26858b40d8bfceffc33202a614
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A universal Urbach rule for disordered organic semiconductors

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