Sökning: onr:"swepub:oai:DiVA.org:uu-211461" >
Enhanced Photovolta...
Enhanced Photovoltaic Performance of Nanowire Dye-Sensitized Solar Cells Based on Coaxial TiO2@TiO Heterostructures with a Cobalt(II/III) Redox Electrolyte
-
Fan, Jiandong (författare)
-
Fabrega, Cristian (författare)
-
Zamani, Reza R. (författare)
-
visa fler...
-
- Hao, Yan (författare)
- Uppsala universitet,Fysikalisk kemi
-
Parra, Andres (författare)
-
Andreu, Teresa (författare)
-
Arbiol, Jordi (författare)
-
- Boschloo, Gerrit (författare)
- Uppsala universitet,Fysikalisk kemi
-
- Hagfeldt, Anders (författare)
- Uppsala universitet,Fysikalisk kemi
-
Ramon Morante, Joan (författare)
-
Cabot, Andreu (författare)
-
visa färre...
-
(creator_code:org_t)
- 2013-09-12
- 2013
- Engelska.
-
Ingår i: ACS Applied Materials and Interfaces. - : American Chemical Society (ACS). - 1944-8244 .- 1944-8252. ; 5:20, s. 9872-9877
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- The growth of a TiO shell at the surface of TiO2 nanowires (NWs) allowed us to improve the power conversion efficiency of NW-based dye-sensitized solar cells (DSCs) by a factor 2.5. TiO2@TiO core-shell NWs were obtained by a two-step process: First, rutile-phase TiO2 NWs were hydrothermally grown. Second, a hongquiite-phase TiO shell was electrochemically deposited at the surface of the TiO2 NWs. Bare TiO2 and heterojunction TiO2@TiO NW-based DSCs were obtained using a cobalt(II/III) redox electrolyte and LEG4 as the dye. With this electrolyte/dye combination, DSCs with outstanding V-oc values above 900 mV were systematically obtained. While TiO2@TiO NW-based DSCs had slightly lower V-oc values than bare TiO2 NW-based DSCs, they provided 3-fold higher photocurrents, overall reaching 2.5-fold higher power conversion efficiencies. The higher photocurrents were associated with the larger surface roughness and an enhanced charge-carrier separation/transfer at the NW/dye interface.
Nyckelord
- hydrothermal deposition
- electrochemical deposition
- nanowires
- TiO2
- cobalt(II/III) electrolyte
- dye-sensitized solar cells
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Fan, Jiandong
-
Fabrega, Cristia ...
-
Zamani, Reza R.
-
Hao, Yan
-
Parra, Andres
-
Andreu, Teresa
-
visa fler...
-
Arbiol, Jordi
-
Boschloo, Gerrit
-
Hagfeldt, Anders
-
Ramon Morante, J ...
-
Cabot, Andreu
-
visa färre...
- Artiklar i publikationen
-
ACS Applied Mate ...
- Av lärosätet
-
Uppsala universitet