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Hybrid Solar Cells Using HgTe Nanocrystals and Nanoporous TiO 2 Electrodes
Author(s) -
Günes S.,
Neugebauer H.,
Sariciftci N. S.,
Roither J.,
Kovalenko M.,
Pillwein G.,
Heiss W.
Publication year - 2006
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200500638
Subject(s) - materials science , nanocrystal , nanoporous , optoelectronics , solar cell , monochromatic color , quantum dot solar cell , hybrid solar cell , photovoltaic system , short circuit , energy conversion efficiency , polymer solar cell , nanotechnology , optics , voltage , physics , ecology , quantum mechanics , biology
HgTe nanocrystals are demonstrated to increase the photon‐harvesting efficiency of hybrid solar cells over a broad spectral region between 350 and 1500 nm. Devices combining two solar cell concepts, a solid‐state nanocrystal‐sensitized solar cell and a nanocrystal/polymer‐blend solar cell, are described. These devices give incident photon to current efficiencies up to 10 % at around 550 nm monochromatic irradiation and short‐circuit current densities of 2 mA cm –2 under simulated AM1.5 (100 mW cm –2 ) illumination (AM: air mass).