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Broadband moth-eye antireflection coatings fabricated by low-cost nanoimprinting


Reference:

Chen, Q., Hubbard, G., Shields, P. A., Liu, C., Allsopp, D. W. E., Wang, W. N. and Abbott, S., 2009. Broadband moth-eye antireflection coatings fabricated by low-cost nanoimprinting. Applied Physics Letters, 94 (26), 263118.

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http://link.aip.org/link/?APPLAB/94/263118/1

Abstract

Subwavelength scale antireflection moth-eye structures in silicon were fabricated by a wafer-scale nanoimprint technique and demonstrated an average reflection of 1% in the spectral range from 400 to 1000 nm at normal incidence. An excellent antireflection property out to large incident angles is shown with the average reflection below 8% at 60 degrees. Pyramid array gave an almost constant average reflection of about 10% for an incident angle up to 45 degrees and concave-wall column array produced an approximately linear relation between the average reflection and the incident angles. The technique is promising for improving conversion efficiencies of silicon solar cells.

Details

Item Type Articles
CreatorsChen, Q., Hubbard, G., Shields, P. A., Liu, C., Allsopp, D. W. E., Wang, W. N. and Abbott, S.
DOI10.1063/1.3171930
Uncontrolled Keywordselemental semiconductors, antireflection coatings, solar cells, nanolithography, silicon
DepartmentsFaculty of Engineering & Design > Electronic & Electrical Engineering
Faculty of Engineering & Design > Mechanical Engineering
Research CentresCentre for Advanced Sensor Technologies (CAST)
RefereedYes
StatusPublished
ID Code14986

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