Open AccessEnhancement of optical transmission with random nanohole structures
Author(s) -
Jaesung Son,
Lalit Verma,
Aaron J. Danner,
Charanjit S. Bhatia,
Hyunsoo Yang
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.000a35
Subject(s) - anti reflective coating , materials science , transmittance , optics , optoelectronics , fabrication , omnidirectional antenna , etching (microfabrication) , solar cell , nanostructure , transmission (telecommunications) , nanotechnology , coating , layer (electronics) , medicine , telecommunications , physics , alternative medicine , engineering , pathology , computer science , antenna (radio) , electrical engineering
We demonstrate an enhancement of optical transmission by creating randomly distributed nanoholes in a glass surface using a simple bottom-up fabrication process. V-shaped holes with sub-100 nm diameter are created by anodized aluminum oxide template and dry etching on glass substrates. The broadband and omnidirectional antireflective effect of the proposed nanostructures is confirmed by measuring the transmittance of the patterned glasses, leading to 3% better transmission. Subsequently, the short-circuit current and the open-circuit voltage of a solar cell with nanostructures are enhanced by 3-4%, improving the solar cell efficiency from 10.47% to 11.20% after two weeks of outdoor testing.