Παρακαλώ χρησιμοποιήστε αυτό το αναγνωριστικό για να παραπέμψετε ή να δημιουργήσετε σύνδεσμο προς αυτό το τεκμήριο:
https://hdl.handle.net/20.500.14279/18244
Τίτλος: | Dependence of charge separation efficiency on film microstructure in Poly(3-hexylthiophene-2,5-diyl): [6,6]-phenyl-C61 butyric acid methyl ester blend films | Συγγραφείς: | Keivanidis, Panagiotis E. Clarke, Tracey M. Lilliu, Samuele Agostinelli, Tiziano MacDonald, J. Emyr Durrant, James R. Bradley, Donal D.C. Nelson, Jenny |
Major Field of Science: | Engineering and Technology | Field Category: | Electrical Engineering - Electronic Engineering - Information Engineering | Λέξεις-κλειδιά: | Kinetics;Spectroscopy | Ημερομηνία Έκδοσης: | 18-Φεβ-2010 | Πηγή: | The Journal of Physical Chemistry Letters, 2010, vol. 1, iss. 4, pp. 734-738 | Volume: | 1 | Issue: | 4 | Start page: | 734 | End page: | 738 | Περιοδικό: | The Journal of Physical Chemistry Letters | Περίληψη: | Herein we address the factors controlling photocurrent generation in P3HT:PCBM blend films as a function of blend composition and annealing treatment. Absorption, photoluminescence, and transient absorption spectroscopy are used to distinguish the role of exciton dissociation, charge pair separation, and charge collection. Variations in blend film microstructure with composition and annealing treatment are studied using X-ray diffraction. While the trend in photocurrent generation with composition and annealing [Muller, et al., Adv. Mater. 2008, 20, 3510] does not follow the trend in exciton dissociation, it closely follows the trend in charge pair generation. Moreover, charge pair generation efficiency is positively correlated to the degree of polymer crystallization and the appearance of large domains of both polymer and fullerene phases. We argue that larger domains assist charge pair separation by increasing the probability of escape from the P3HT:PCBM interface, thus reducing geminate charge recombination. © 2010 American Chemical Society. | ISSN: | 19487185 | DOI: | 10.1021/jz900296f | Rights: | © American Chemical Society | Type: | Article | Affiliation: | Imperial College London Cardiff University |
Publication Type: | Peer Reviewed |
Εμφανίζεται στις συλλογές: | Άρθρα/Articles |
CORE Recommender
SCOPUSTM
Citations
105
checked on 14 Μαρ 2024
WEB OF SCIENCETM
Citations
98
Last Week
0
0
Last month
0
0
checked on 29 Οκτ 2023
Page view(s)
339
Last Week
0
0
Last month
34
34
checked on 14 Μαρ 2025
Google ScholarTM
Check
Altmetric
Όλα τα τεκμήρια του δικτυακού τόπου προστατεύονται από πνευματικά δικαιώματα