Dye-Sensitized Solar Cell with Integrated Triplet-Triplet Annihilation Upconversion System.
Photon upconversion (UC) by triplet-triplet annihilation (TTA-UC) is employed in order to enhance the response of solar cells to sub-bandgap light. Here, we present the first report of an integrated photovoltaic device, combining a dye-sensitized solar cell (DSC) and TTA-UC system. The integrated device displays enhanced current under sub-bandgap illumination, resulting in a figure of merit (FoM) under low concentration (3 suns), which is competitive with the best values recorded to date for nonintegrated systems. Thus, we demonstrate both the compatibility of DSC and TTA-UC and a viable method for device integration.
†ARC Centre of Excellence for Electromaterials Science (ACES), Intelligent Polymer Research Institute (IPRI), The University of Wollongong, North Wollongong, NSW 2522, Australia.
Andrew
A
Nattestad
‡School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia.
Yuen Yap
YY
Cheng
‡School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia.
Rowan W
RW
MacQueen
‡School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia.|§Institute for Silicon Photovoltaics, Helmholtz-Zentrum Berlin, Germany.
Tim F
TF
Schulze
†ARC Centre of Excellence for Electromaterials Science (ACES), Intelligent Polymer Research Institute (IPRI), The University of Wollongong, North Wollongong, NSW 2522, Australia.
Fletcher W
FW
Thompson
†ARC Centre of Excellence for Electromaterials Science (ACES), Intelligent Polymer Research Institute (IPRI), The University of Wollongong, North Wollongong, NSW 2522, Australia.
Attila J
AJ
Mozer
‡School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia.
Burkhard
B
Fückel
‡School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia.
Tony
T
Khoury
‡School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia.
Maxwell J
MJ
Crossley
§Institute for Silicon Photovoltaics, Helmholtz-Zentrum Berlin, Germany.
Klaus
K
Lips
†ARC Centre of Excellence for Electromaterials Science (ACES), Intelligent Polymer Research Institute (IPRI), The University of Wollongong, North Wollongong, NSW 2522, Australia.
Gordon G
GG
Wallace
‡School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia.
Timothy W
TW
Schmidt
DSC; efficiency; figure of merit; photochemical upconversion; solar cell; sub-bandgap excitation