Sökning: onr:"swepub:oai:DiVA.org:kth-321191" >
Efficient dye-sensi...
Efficient dye-sensitized solar cells based on bioinspired copper redox mediators by tailoring counterions
-
Li, L. (författare)
-
Zhao, L. (författare)
-
Jiang, X. (författare)
-
visa fler...
-
Yu, Z. (författare)
-
Liu, J. (författare)
-
Rui, H. (författare)
-
Shen, J. (författare)
-
Sharmoukh, W. (författare)
-
Allam, N. K. (författare)
-
- Sun, Licheng, 1962- (författare)
- KTH,Organisk kemi,State Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), Dalian, China; Center of Artificial Photosynthesis for Solar Fuels, School of Science, Westlake University, Hangzhou, China
-
visa färre...
-
(creator_code:org_t)
- 2022
- 2022
- Engelska.
-
Ingår i: Journal of Materials Chemistry A. - : Royal Society of Chemistry (RSC). - 2050-7488 .- 2050-7496. ; 10:8, s. 4131-4136
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- In recent years, copper(ii/i) complexes have attracted growing interest as redox mediators in dye-sensitized solar cells. Here, we report a new class of copper complexes bearing a bis(2-pyridylmethyl)-1,2-ethanedithiol ligand, coded as [Cu(N2S2)]2+/+, with tetrafluoroborate ([BF4]-) and hexafluorophosphate ([PF6]-) counterions. Strikingly, it is discovered that the solubility and diffusion coefficients of Cu(i) species are dramatically improved by changing the counterion from [BF4]- to [PF6]-. As a result, DSCs incorporating the latter redox system show a much enhanced short-circuit current density and fill factor, which in turn lead to a superior overall power conversion efficiency (PCE) of 10.3% under one sun illumination (100 mW cm-2, AM 1.5G). This has been the highest PCE reported so far for copper redox mediators with sulfur-coordinating ligands in DSCs. Thus, this work provides an effective strategy for further design of more efficient redox mediators in DSCs.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Nyckelord
- Copper compounds
- Ions
- Ligands
- Redox reactions
- Cell-based
- Copper complexes
- Counterions
- Density factor
- Dye- sensitized solar cells
- Hexafluorophosphates
- Redox mediators
- Redox systems
- Short circuit current density
- Tetrafluoroborates
- Dye-sensitized solar cells
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Li, L.
-
Zhao, L.
-
Jiang, X.
-
Yu, Z.
-
Liu, J.
-
Rui, H.
-
visa fler...
-
Shen, J.
-
Sharmoukh, W.
-
Allam, N. K.
-
Sun, Licheng, 19 ...
-
visa färre...
- Om ämnet
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Kemi
-
och Fysikalisk kemi
- Artiklar i publikationen
-
Journal of Mater ...
- Av lärosätet
-
Kungliga Tekniska Högskolan