The entangled triplet pair state in acene and heteroacene materials.
Entanglement of states is one of the most surprising and counter-intuitive consequences of quantum mechanics, with potent applications in cryptography and computing. In organic materials, one particularly significant manifestation is the spin-entangled triplet-pair state, which mediates the spin-con...
| Main Authors: | , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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Springer Nature
2017
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| _version_ | 1826293168330506240 |
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| author | Yong, C Musser, A Bayliss, S Lukman, S Tamura, H Bubnova, O Hallani, R Meneau, A Resel, R Maruyama, M Hotta, S Herz, L Beljonne, D Anthony, J Clark, J Sirringhaus, H |
| author_facet | Yong, C Musser, A Bayliss, S Lukman, S Tamura, H Bubnova, O Hallani, R Meneau, A Resel, R Maruyama, M Hotta, S Herz, L Beljonne, D Anthony, J Clark, J Sirringhaus, H |
| author_sort | Yong, C |
| collection | OXFORD |
| description | Entanglement of states is one of the most surprising and counter-intuitive consequences of quantum mechanics, with potent applications in cryptography and computing. In organic materials, one particularly significant manifestation is the spin-entangled triplet-pair state, which mediates the spin-conserving fission of one spin-0 singlet exciton into two spin-1 triplet excitons. Despite long theoretical and experimental exploration, the nature of the triplet-pair state and inter-triplet interactions have proved elusive. Here we use a range of organic semiconductors that undergo singlet exciton fission to reveal the photophysical properties of entangled triplet-pair states. We find that the triplet pair is bound with respect to free triplets with an energy that is largely material independent (∼30 meV). During its lifetime, the component triplets behave cooperatively as a singlet and emit light through a Herzberg-Teller-type mechanism, resulting in vibronically structured photoluminescence. In photovoltaic blends, charge transfer can occur from the bound triplet pairs with >100% photon-to-charge conversion efficiency. |
| first_indexed | 2024-03-07T03:25:56Z |
| format | Journal article |
| id | oxford-uuid:b908faf7-acc6-4b98-870b-86aa22dffecf |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:25:56Z |
| publishDate | 2017 |
| publisher | Springer Nature |
| record_format | dspace |
| spelling | oxford-uuid:b908faf7-acc6-4b98-870b-86aa22dffecf2022-03-27T05:00:11ZThe entangled triplet pair state in acene and heteroacene materials.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b908faf7-acc6-4b98-870b-86aa22dffecfEnglishSymplectic Elements at OxfordSpringer Nature2017Yong, CMusser, ABayliss, SLukman, STamura, HBubnova, OHallani, RMeneau, AResel, RMaruyama, MHotta, SHerz, LBeljonne, DAnthony, JClark, JSirringhaus, HEntanglement of states is one of the most surprising and counter-intuitive consequences of quantum mechanics, with potent applications in cryptography and computing. In organic materials, one particularly significant manifestation is the spin-entangled triplet-pair state, which mediates the spin-conserving fission of one spin-0 singlet exciton into two spin-1 triplet excitons. Despite long theoretical and experimental exploration, the nature of the triplet-pair state and inter-triplet interactions have proved elusive. Here we use a range of organic semiconductors that undergo singlet exciton fission to reveal the photophysical properties of entangled triplet-pair states. We find that the triplet pair is bound with respect to free triplets with an energy that is largely material independent (∼30 meV). During its lifetime, the component triplets behave cooperatively as a singlet and emit light through a Herzberg-Teller-type mechanism, resulting in vibronically structured photoluminescence. In photovoltaic blends, charge transfer can occur from the bound triplet pairs with >100% photon-to-charge conversion efficiency. |
| spellingShingle | Yong, C Musser, A Bayliss, S Lukman, S Tamura, H Bubnova, O Hallani, R Meneau, A Resel, R Maruyama, M Hotta, S Herz, L Beljonne, D Anthony, J Clark, J Sirringhaus, H The entangled triplet pair state in acene and heteroacene materials. |
| title | The entangled triplet pair state in acene and heteroacene materials. |
| title_full | The entangled triplet pair state in acene and heteroacene materials. |
| title_fullStr | The entangled triplet pair state in acene and heteroacene materials. |
| title_full_unstemmed | The entangled triplet pair state in acene and heteroacene materials. |
| title_short | The entangled triplet pair state in acene and heteroacene materials. |
| title_sort | entangled triplet pair state in acene and heteroacene materials |
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