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Circumventing UV light induced nanomorphology disorder to achieve long lifetime PTB7-Th:PCBM based solar cells
dc.contributor.author | Liu, Quan |
dc.contributor.author | Toudert, Johann |
dc.contributor.author | Liu, Fengqing |
dc.contributor.author | Mantilla Perez, Paola |
dc.contributor.author | Montes Bajo, Miguel |
dc.contributor.author | Rusell, Thomas P. |
dc.contributor.author | Martorell Pena, Jordi |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física |
dc.date.accessioned | 2017-10-26T12:45:38Z |
dc.date.available | 2018-07-17T00:30:22Z |
dc.date.issued | 2017-07-17 |
dc.identifier.citation | Liu, Q., Toudert, J., Liu, F., Mantilla, P., Montes, M., Rusell, T., Martorell, J. Circumventing UV light induced nanomorphology disorder to achieve long lifetime PTB7-Th:PCBM based solar cells. "Advanced energy materials", 17 Juliol 2017, vol. 7, num. 21, p.1-9. |
dc.identifier.issn | 1614-6832 |
dc.identifier.uri | http://hdl.handle.net/2117/109267 |
dc.description | Aquest article pot ser utilitzat per a fins no comercials, d'acord amb els termes i condicions d’auto-arxiu de Wiley. |
dc.description.abstract | Large area flexible electronics rely on organic or hybrid materials prone to degradation limiting the device lifetime. For many years, photo-oxidation has been thought to be one of the major degradation pathways. However, intense illumination may lead to a burn-in or a rapid decrease in performance for devices completely isolated from corrosive elements as oxygen or moisture. The experimental studies which are presented in here indicate that a plausible triggering for the burn-in is a spin flip after a UV photon absorption leading to the accumulation of electrostatic potential energy that initiates a rapid destruction of the nanomorpholgy in the fullerene phase of a polymer cell. To circumvent this and achieve highly stable and efficient devices, a robust nanocrystalline ordering is induced in the PCBM phase prior to UV illumination. In that event, PTB7-Th:PC71BM cells are shown to exhibit T80 lifetimes larger than 1.6 years under a continuous UV-filtered 1-sun illumination, equivalent to 7 years for sunlight harvesting at optimal orientation and 10 years for vertical applications. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica |
dc.subject | Àrees temàtiques de la UPC::Física |
dc.subject.lcsh | Photovoltaic power generation |
dc.subject.lcsh | Solar cells |
dc.subject.other | Burn-in |
dc.subject.other | Organic photovoltaics |
dc.subject.other | PCBM |
dc.subject.other | Photostability |
dc.subject.other | PTB7-Th |
dc.title | Circumventing UV light induced nanomorphology disorder to achieve long lifetime PTB7-Th:PCBM based solar cells |
dc.type | Article |
dc.subject.lemac | Energia solar fotovoltaica |
dc.subject.lemac | Cèl·lules solars |
dc.contributor.group | Universitat Politècnica de Catalunya. DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers |
dc.identifier.doi | 10.1002/aenm.201701201 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://onlinelibrary.wiley.com/doi/10.1002/aenm.201701201/abstract |
dc.rights.access | Open Access |
local.identifier.drac | 21548187 |
dc.description.version | Postprint (author's final draft) |
local.citation.author | Liu, Q.; Toudert, J.; Liu, F.; Mantilla, P.; Montes, M.; Rusell, T.; Martorell, J. |
local.citation.publicationName | Advanced energy materials |
local.citation.volume | 7 |
local.citation.number | 21 |
local.citation.startingPage | 1 |
local.citation.endingPage | 9 |
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