Enhanced exciton harvesting in a planar heterojunction organic photovoltaic device by solvent vapor annealing
Journal article
Zhang, Yiwei, Sajjad, T, Blaszczyk, Oskar, Ruseckas, Arvydas, Serrano, Luis A, Cooke, Graeme and Samuel, Ifor DW (2019). Enhanced exciton harvesting in a planar heterojunction organic photovoltaic device by solvent vapor annealing. Organic Electronics. 70, pp. 162-166. https://doi.org/10.1016/j.orgel.2019.03.014
| Authors | Zhang, Yiwei, Sajjad, T, Blaszczyk, Oskar, Ruseckas, Arvydas, Serrano, Luis A, Cooke, Graeme and Samuel, Ifor DW |
|---|---|
| Abstract | The singlet exciton diffusion length was measured in a small molecule electron donor material DR3TBDTT using fluorescence quenching at a planar interface with a cross-linked fullerene derivative. The one-dimensional exciton diffusion length was increased from ~16 to ~24 nm by annealing the film in carbon disulfide solvent vapor. Planar heterojunction solar cells were fabricated using bilayers of these materials and it was found that solvent vapor annealing increased the short circuit current density by 46%. This can be explained by improved exciton harvesting in the annealed bilayer. |
| Year | 2019 |
| Journal | Organic Electronics |
| Journal citation | 70, pp. 162-166 |
| Publisher | Elsevier |
| ISSN | 1566-1199 |
| Digital Object Identifier (DOI) | https://doi.org/10.1016/j.orgel.2019.03.014 |
| Publication dates | |
| 01 Jul 2019 | |
| Online | 13 Mar 2019 |
| Publication process dates | |
| Accepted | 07 Mar 2019 |
| Deposited | 18 Mar 2020 |
| Accepted author manuscript | License File Access Level Open |
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https://openresearch.lsbu.ac.uk/item/89577
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| Zhang_2019_OE_Excitonharvesting_AAM.pdf | ||
| License: CC BY-NC-ND 4.0 | ||
| File access level: Open | ||
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