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pro vyhledávání: '"Arne C. Morteani"'
Control of the band-edge offsets at heterojunctions between organic semiconductors allows efficient operation of either photovoltaic or light-emitting diodes. We investigate systems where the exciton is marginally stable against charge separation, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::556cb196f2790226706021c6e52fdaf3
https://ora.ox.ac.uk/objects/uuid:b3742710-b8d9-426d-9c5a-dfbe9a71eefa
https://ora.ox.ac.uk/objects/uuid:b3742710-b8d9-426d-9c5a-dfbe9a71eefa
Autor:
Arne C. Morteani, Carlos Silva, Laura M. Herz, Richard H. Friend, David Beljonne, I. V. Avilov, Richard T. Phillips, Jérôme Cornil, Paiboon Sreearunothai
tive interaction but also to a repulsive interaction at heterojunctions. We have investigated the time-resolved photoluminescence of a blend film of two polyfluorenederivative copolymers. At short (sub-ps) time delays after excitation, excitonic emis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9fad18898e56bce1fa3ffd66ed6297c
https://ora.ox.ac.uk/objects/uuid:8f212fba-ba87-403d-ba1a-0be84958e255
https://ora.ox.ac.uk/objects/uuid:8f212fba-ba87-403d-ba1a-0be84958e255
Publikováno v:
Advanced Materials. 21:3924-3927
Publikováno v:
Organic Light Emitting Devices: Synthesis, Properties and Applications
Publikováno v:
Chemical Physics Letters. 391:81-84
Correctly-designed heterojunctions between semiconductor polymers allow for efficient operation of polymeric photovoltaic or light-emitting diodes (LEDs). We show via low-temperature, time-resolved photoluminescence measurements that exciplex-type, l
Autor:
Richard H. Friend, Carlos Silva, J. H. Burroughes, Ji-Seon Kim, Anoop S. Dhoot, Arne C. Morteani, Neil C. Greenham, Craig E. Murphy, S. Cina, Ellen Moons
Publikováno v:
Advanced Materials. 15:1708-1712
Publikováno v:
Nano Letters. 2:1353-1357
We report a compositional analysis of blended hole-accepting and electron-accepting polyfluorene related materials, poly(9,9‘-dioctylfluorene-co-bis-N,N‘-(4-butylphenyl)-bis-N,N‘-phenyl-1,4-phenylene-diamine) [PFB] and poly(9,9‘-dioctylfluore
Publikováno v:
Applied Physics Letters. 85:2256-2258
Photoinduced charge transfer at a conjugated polymer donor-acceptor heterojunction controls the ultimate photogeneration efficiency in photovoltaic devices. We have studied this charge transfer by measurements of electric-field-induced photoluminesce
Ultrafast charge photogeneration and exciton regeneration at polymeric semiconductor heterojunctions
Publikováno v:
Scopus-Elsevier
Springer Series in Chemical Physics ISBN: 9783540241102
Springer Series in Chemical Physics ISBN: 9783540241102
We investigate photoexcitation dynamics in blends of electron and hole transporting conjugated polymers. Excitons that dissociate at the heterojunction can be regenerated efficiently via geminate-pair recombination and endothermic energy transfer fro
Publikováno v:
The Journal of Chemical Physics. 122:244906
Optoelectronic devices made from semiconductor polymers often employ partially phase-separated binary polymer blends with "distributed heterojunctions" in the polymer film, and the migration of bulk excitons towards these heterojunctions crucially in