Enhanced reflection from inverse tapered nanocone arrays

Xiang-tian Kong; Haider Butt; Ali K. Yetisen; Chuan Kangwanwatana; Yunuen Montelongo; Sunan Deng; Fernando Da Cruz Vasconcellos; Malik M. Qasim; Timothy D. Wilkinson; Qing Dai

doi:10.1063/1.4892580

Enhanced reflection from inverse tapered nanocone arrays

Xiang-tian Kong, Haider Butt, Ali K. Yetisen, Chuan Kangwanwatana, Yunuen Montelongo, Sunan Deng, Fernando Da Cruz Vasconcellos, Malik M. Qasim, Timothy D. Wilkinson, Qing Dai

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Abstract

We computationally and experimentally demonstrate enhanced reflection effects displayed by silicon-based inverted nanocone arrays. A 3D finite element model is used to characterize the optical properties of the nanocone arrays with respect to the change in polarization and incident angles. The nanocone arrays are fabricated by e-beam lithography in hexagonal and triangular geometries with a lattice constant of 300 nm. The fabricated devices show a two-fold increase in reflection compared with bare silicon surface, as well as a strong diffraction within the visible and near-infrared spectra. The nanocone arrays may find a variety of applications from optical devices to energy conservation technologies.

Original language	English
Article number	053108
Journal	Applied Physics Letters
Volume	105
Issue number	5
DOIs	https://doi.org/10.1063/1.4892580
Publication status	Published - 4 Aug 2014

Keywords

Silicon
Light diffraction
Nanostructures
Polarization
Reflectivity

UN SDGs

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10.1063/1.4892580

Butt_Enhanced_reflection_from_inverse_tapered_nanoncone_arrays_APL_2014
Copyright 2014 American Institute of Physics. Eligibility for repository : checked 8/08/2014
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http://scitation.aip.org/content/aip/journal/apl/105/5/10.1063/1.4892580

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title = "Enhanced reflection from inverse tapered nanocone arrays",

abstract = "We computationally and experimentally demonstrate enhanced reflection effects displayed by silicon-based inverted nanocone arrays. A 3D finite element model is used to characterize the optical properties of the nanocone arrays with respect to the change in polarization and incident angles. The nanocone arrays are fabricated by e-beam lithography in hexagonal and triangular geometries with a lattice constant of 300 nm. The fabricated devices show a two-fold increase in reflection compared with bare silicon surface, as well as a strong diffraction within the visible and near-infrared spectra. The nanocone arrays may find a variety of applications from optical devices to energy conservation technologies.",

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author = "Xiang-tian Kong and Haider Butt and Yetisen, {Ali K.} and Chuan Kangwanwatana and Yunuen Montelongo and Sunan Deng and {Cruz Vasconcellos}, {Fernando Da} and Qasim, {Malik M.} and Wilkinson, {Timothy D.} and Qing Dai",

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doi = "10.1063/1.4892580",

language = "English",

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T1 - Enhanced reflection from inverse tapered nanocone arrays

AU - Kong, Xiang-tian

AU - Butt, Haider

AU - Yetisen, Ali K.

AU - Kangwanwatana, Chuan

AU - Montelongo, Yunuen

AU - Deng, Sunan

AU - Cruz Vasconcellos, Fernando Da

AU - Qasim, Malik M.

AU - Wilkinson, Timothy D.

AU - Dai, Qing

PY - 2014/8/4

Y1 - 2014/8/4

N2 - We computationally and experimentally demonstrate enhanced reflection effects displayed by silicon-based inverted nanocone arrays. A 3D finite element model is used to characterize the optical properties of the nanocone arrays with respect to the change in polarization and incident angles. The nanocone arrays are fabricated by e-beam lithography in hexagonal and triangular geometries with a lattice constant of 300 nm. The fabricated devices show a two-fold increase in reflection compared with bare silicon surface, as well as a strong diffraction within the visible and near-infrared spectra. The nanocone arrays may find a variety of applications from optical devices to energy conservation technologies.

AB - We computationally and experimentally demonstrate enhanced reflection effects displayed by silicon-based inverted nanocone arrays. A 3D finite element model is used to characterize the optical properties of the nanocone arrays with respect to the change in polarization and incident angles. The nanocone arrays are fabricated by e-beam lithography in hexagonal and triangular geometries with a lattice constant of 300 nm. The fabricated devices show a two-fold increase in reflection compared with bare silicon surface, as well as a strong diffraction within the visible and near-infrared spectra. The nanocone arrays may find a variety of applications from optical devices to energy conservation technologies.

KW - Silicon

KW - Light diffraction

KW - Nanostructures

KW - Polarization

KW - Reflectivity

U2 - 10.1063/1.4892580

DO - 10.1063/1.4892580

M3 - Article

SN - 0003-6951

VL - 105

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 5

M1 - 053108

ER -

Enhanced reflection from inverse tapered nanocone arrays

Abstract

Keywords

UN SDGs

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