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Diffraction‐Grating‐Embedded Dye‐Sensitized Solar Cells with Good Light Harvesting
Author(s) -
Lee Jeeyoung,
Lee Myeongkyu
Publication year - 2014
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201300978
Subject(s) - photocurrent , materials science , optoelectronics , diffraction , absorption (acoustics) , optics , nanotechnology , physics , composite material
A refractive‐index grating is embedded in the bottom of the TiO 2 absorption layer of a dye‐sensitized solar cell via imprinting and subsequent TiCl 4 treatment. This architecture has little influence on the dye coverage but greatly enhances light harvesting and photon‐to‐electron conversion efficiency by diffracting the incident light. A 24% increase in the photocurrent density is achieved.