A bicontinuous double gyroid hybrid solar cell.
We report the first successful application of an ordered bicontinuous gyroid semiconducting network in a hybrid bulk heterojunction solar cell. The freestanding gyroid network is fabricated by electrochemical deposition into the 10 nm wide voided channels of a self-assembled, selectively degradable block copolymer film. The highly ordered pore structure is ideal for uniform infiltration of an organic hole transporting material, and solid-state dye-sensitized solar cells only 400 nm thick exhibit up to 1.7% power conversion efficiency. This patterning technique can be readily extended to other promising heterojunction systems and is a major step toward realizing the full potential of self-assembly in the next generation of device technologies.
Crossland
Edward J W
EJ
Department of Physics, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, UK.
Kamperman
Marleen
M
Nedelcu
Mihaela
M
Ducati
Caterina
C
Wiesner
Ulrich
U
Smilgies
Detlef-M
DM
Toombes
Gilman E S
GE
Hillmyer
Marc A
MA
Ludwigs
Sabine
S
Steiner
Ullrich
U
Snaith
Henry J
HJ
D011211:Electric Power Supplies; D008855:Microscopy, Electron, Scanning; D036103:Nanotechnology; D011108:Polymers / Q000737:chemistry; D012666:Semiconductors; D012993:Solar Energy
D011108:Polymers