Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.4821223
DC FieldValue
dc.titleInterface investigation of the alcohol-/water-soluble conjugated polymer PFN as cathode interfacial layer in organic solar cells
dc.contributor.authorZhong, S.
dc.contributor.authorWang, R.
dc.contributor.authorYing Mao, H.
dc.contributor.authorHe, Z.
dc.contributor.authorWu, H.
dc.contributor.authorChen, W.
dc.contributor.authorCao, Y.
dc.date.accessioned2014-10-16T08:31:48Z
dc.date.available2014-10-16T08:31:48Z
dc.date.issued2013-09-21
dc.identifier.citationZhong, S., Wang, R., Ying Mao, H., He, Z., Wu, H., Chen, W., Cao, Y. (2013-09-21). Interface investigation of the alcohol-/water-soluble conjugated polymer PFN as cathode interfacial layer in organic solar cells. Journal of Applied Physics 114 (11) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4821223
dc.identifier.issn00218979
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/94074
dc.description.abstractIn this work, in situ ultraviolet photoelectron spectroscopy measurements were used to investigate the working mechanism of an alcohol-/water-soluble conjugated polymer poly [(9,9-bis(3′-(N,N-dimethylamino)propyl)-2,7- fluorene)-alt-2,7-(9,9-dioctylfluorene)] (PFN) as the cathode interfacial layer in organic solar cells from the view of interfacial energy level alignment. Fullerene (C60) was chosen as the model acceptor material in contact with PFN as well as two other cathode interfacial layers ZnO and TiO2 in the configuration of an inverted solar cell structure. Significant charge transfer between PFN modified ITO (indium tin oxide) electrode and C 60 is observed due to the low work function of PFN. This results in the Fermi level of the substrate pinned very close to the lowest unoccupied molecular orbital of C60 as well as an additional electric field at the cathode/acceptor interface. Both of them facilitate the electron extraction from the acceptor C60 to the ITO cathode, as confirmed by the electrical measurements of the electron-only devices with PFN modification. The better electron extraction originated from the Fermi level pinning and the additional interface electric field are believed to contribute to the efficiency enhancement of the inverted organic solar cells employing PFN as cathode interfacial layer. © 2013 AIP Publishing LLC.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1063/1.4821223
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentCHEMISTRY
dc.description.doi10.1063/1.4821223
dc.description.sourcetitleJournal of Applied Physics
dc.description.volume114
dc.description.issue11
dc.description.page-
dc.description.codenJAPIA
dc.identifier.isiut000324827200034
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

28
checked on Sep 7, 2021

WEB OF SCIENCETM
Citations

29
checked on Sep 7, 2021

Page view(s)

112
checked on Aug 27, 2021

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.