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...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2021-06-01
|
| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-021-24202-9 |
| _version_ | 1818405461169274880 |
|---|---|
| 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 |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-14T08:56:25Z |
| format | Article |
| id | doaj.art-ad787c26858b40d8bfceffc33202a614 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-12-14T08:56:25Z |
| publishDate | 2021-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-ad787c26858b40d8bfceffc33202a6142022-12-21T23:08:55ZengNature PortfolioNature Communications2041-17232021-06-011211910.1038/s41467-021-24202-9A universal Urbach rule for disordered organic semiconductorsChristina Kaiser0Oskar J. Sandberg1Nasim Zarrabi2Wei Li3Paul Meredith4Ardalan Armin5Sustainable Advanced Materials (Sêr-SAM), Department of Physics, Swansea UniversitySustainable Advanced Materials (Sêr-SAM), Department of Physics, Swansea UniversitySustainable Advanced Materials (Sêr-SAM), Department of Physics, Swansea UniversitySustainable Advanced Materials (Sêr-SAM), Department of Physics, Swansea UniversitySustainable Advanced Materials (Sêr-SAM), Department of Physics, Swansea UniversitySustainable Advanced Materials (Sêr-SAM), Department of Physics, Swansea UniversityThe 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.https://doi.org/10.1038/s41467-021-24202-9 |
| spellingShingle | Christina Kaiser Oskar J. Sandberg Nasim Zarrabi Wei Li Paul Meredith Ardalan Armin A universal Urbach rule for disordered organic semiconductors Nature Communications |
| title | 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_short | A universal Urbach rule for disordered organic semiconductors |
| title_sort | universal urbach rule for disordered organic semiconductors |
| url | https://doi.org/10.1038/s41467-021-24202-9 |
| work_keys_str_mv | AT christinakaiser auniversalurbachrulefordisorderedorganicsemiconductors AT oskarjsandberg auniversalurbachrulefordisorderedorganicsemiconductors AT nasimzarrabi auniversalurbachrulefordisorderedorganicsemiconductors AT weili auniversalurbachrulefordisorderedorganicsemiconductors AT paulmeredith auniversalurbachrulefordisorderedorganicsemiconductors AT ardalanarmin auniversalurbachrulefordisorderedorganicsemiconductors AT christinakaiser universalurbachrulefordisorderedorganicsemiconductors AT oskarjsandberg universalurbachrulefordisorderedorganicsemiconductors AT nasimzarrabi universalurbachrulefordisorderedorganicsemiconductors AT weili universalurbachrulefordisorderedorganicsemiconductors AT paulmeredith universalurbachrulefordisorderedorganicsemiconductors AT ardalanarmin universalurbachrulefordisorderedorganicsemiconductors |