Triumphing over Charge Transfer Limitations of PEDOT Nanofiber Reduction Catalyst by 1,2-Ethanedithiol Doping for Quantum Dot Solar Cells
Impacte
Scholar |
Altres documents de l'autoria: Kim, Tea-Yon; Lee, Tae Kyung; Kim, Byung Su; Park, Seul Chan; Lee, Sungjin; Im, Seung Soon; Bisquert, Juan; Kang, Yong Soo
Metadades
Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/2507
comunitat-uji-handle3:10234/6973
comunitat-uji-handle4:
INVESTIGACIONAquest recurs és restringit
http://dx.doi.org/10.1021/acsami.6b12536 |
Metadades
Títol
Triumphing over Charge Transfer Limitations of PEDOT Nanofiber Reduction Catalyst by 1,2-Ethanedithiol Doping for Quantum Dot Solar CellsAutoria
Data de publicació
2017Editor
American Chemical SocietyISSN
1944-8244; 1944-8252Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://pubs.acs.org/doi/abs/10.1021/acsami.6b12536Versió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
Charge transfer between a conducting polymer-based counter electrode (CE) and a polysulfide (S2–/Sn2–) electrolyte mediator is a key limitation to improvements of solar energy conversion efficiency (ECE) in quantum- ... [+]
Charge transfer between a conducting polymer-based counter electrode (CE) and a polysulfide (S2–/Sn2–) electrolyte mediator is a key limitation to improvements of solar energy conversion efficiency (ECE) in quantum-dot-sensitized solar cells (QDSCs). In this paper, 1,2-ethanedithiol (EDT) was doped into nanofibrous poly(3,4-ethylenedioxythiophene) (PEDOT NF) to overcome the charge transfer limitation between PEDOT NF and S2–/Sn2–. EDT not only helps to reduce the aggregation and thus enhance the linearization of the PEDOT chains but also changes the molecular conformation of the PEDOT chains from a benzoid to a quinoid structure. EDT-doped PEDOT NF-based CEs showed almost 3.7 times higher conductivity, better electrocatalytic activity, and improved compatibility with S2–/Sn2– in an aqueous electrolyte. As a result, the charge transfer resistance between the polymer-based CE and the S2–/Sn2– electrolyte was significantly reduced, resulting in over 3% ECE in QDSCs, more than double that of a bare PEDOT NF-based CE. [-]
Publicat a
ACS applied materials & interfaces, 2017, vol. 9, no 2, p. 1877-1884.Proyecto de investigación
Korea Center for Artificial Photosynthesis (KCAP) / Number 2009-0093883Drets d'accés
© American Chemical Society
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
Apareix a les col.leccions
- FCA_Articles [501]