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Effect of Metamaterial Perfect Absorber on Device Performance of PCPDTBT:PC 71 BM Solar Cell
Author(s) -
Katsumata Shohei,
Isegawa Tomohisa,
Okamoto Takayuki,
Kubo Wakana
Publication year - 2020
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201900910
Subject(s) - metamaterial , wavelength , absorption (acoustics) , materials science , optoelectronics , metamaterial absorber , optics , solar cell , active layer , range (aeronautics) , layer (electronics) , physics , nanotechnology , tunable metamaterials , composite material , thin film transistor
Light absorption and device performance of organic solar cells with metamaterial perfect absorbers are examined, and their correlation is elucidated. The solar cells exhibit enhanced light absorption as well as device performance in the longer wavelength range. In the shorter wavelength range, the absorption is increased; however, the device performance is deteriorated. Precise nanofabrication and numerical calculations reveal the correlation between the improved light absorption and the device performance, which can be explained by the positions of the field localizations. In the longer wavelength range, the metamaterial perfect absorber confines light into the active layer, whereas in the shorter wavelength range, the field is localized outside the active layer.