scholarly journals Near-unity broadband absorption designs for semiconducting nanowire arrays via localized radial mode excitation

2014 ◽  
Vol 22 (S3) ◽  
pp. A930 ◽  
Author(s):  
Katherine T. Fountaine ◽  
Christian G. Kendall ◽  
Harry A. Atwater
Keyword(s):  
Nanowire Arrays ◽  
Radial Mode ◽  
Broadband Absorption ◽  
Mode Excitation

scholarly journals Enhanced broadband absorption in nanowire arrays with integrated Bragg reflectors

Nanophotonics ◽  
2018 ◽  
Vol 7 (5) ◽  
pp. 819-825 ◽  
Author(s):  
Mahtab Aghaeipour ◽  
Håkan Pettersson
Keyword(s):  
High Performance ◽  
Incidence Angle ◽  
Solar Spectrum ◽  
Normal Incidence ◽  
Absorption Efficiency ◽  
Nanowire Arrays ◽  
Bragg Reflectors ◽  
Broadband Absorption ◽  
Photovoltaic Applications ◽  
Direct Band

AbstractA near-unity unselective absorption spectrum is desirable for high-performance photovoltaics. Nanowire (NW) arrays are promising candidates for efficient solar cells due to nanophotonic absorption resonances in the solar spectrum. The absorption spectra, however, display undesired dips between the resonance peaks. To achieve improved unselective broadband absorption, we propose to enclose distributed Bragg reflectors (DBRs) in the bottom and top parts of indium phosphide (InP) NWs, respectively. We theoretically show that by enclosing only two periods of In0.56Ga0.44As/InP DBRs, an unselective 78% absorption efficiency (72% for NWs without DBRs) is obtained at normal incidence in the spectral range from 300 nm to 920 nm. Under oblique light incidence, the absorption efficiency is enhanced up to about 85% at an incidence angle of 50°. By increasing the number of DBR periods from two to five, the absorption efficiency is further enhanced up to 95% at normal incidence. In this work, we calculated optical spectra for InP NWs, but the results are expected to be valid for other direct band gap III–V semiconductor materials. We believe that our proposed idea of integrating DBRs in NWs offers great potential for high-performance photovoltaic applications.

Broadband absorption enhancement in randomly positioned silicon nanowire arrays for solar cell applications

2011 ◽  
Vol 36 (10) ◽  
pp. 1884 ◽  
Author(s):  
Qing Guo Du ◽  
Chan Hin Kam ◽  
Hilmi Volkan Demir ◽  
Hong Yu Yu ◽  
Xiao Wei Sun
Keyword(s):  
Solar Cell ◽  
Silicon Nanowire ◽  
Nanowire Arrays ◽  
Absorption Enhancement ◽  
Broadband Absorption ◽  
Silicon Nanowire Arrays

scholarly journals Broadband absorption enhancement in elliptical silicon nanowire arrays for photovoltaic applications

2014 ◽  
Vol 22 (S5) ◽  
pp. A1292 ◽  
Author(s):  
Yonggang Wu ◽  
Zihuan Xia ◽  
Zhaoming Liang ◽  
Jian Zhou ◽  
Hongfei Jiao ◽  
...  
Keyword(s):  
Silicon Nanowire ◽  
Nanowire Arrays ◽  
Absorption Enhancement ◽  
Broadband Absorption ◽  
Silicon Nanowire Arrays ◽  
Photovoltaic Applications

scholarly journals Strong broadband absorption in GaAs nanocone and nanowire arrays for solar cells

2014 ◽  
Vol 22 (S2) ◽  
pp. A386 ◽  
Author(s):  
Baomin Wang ◽  
Erica Stevens ◽  
Paul W. Leu
Keyword(s):  
Solar Cells ◽  
Nanowire Arrays ◽  
Broadband Absorption

Self-assembled bundled TiO2nanowire arrays encapsulated with indium tin oxide for broadband absorption in plasmonic photocatalysis

2017 ◽  
Vol 19 (39) ◽  
pp. 27059-27064 ◽  
Author(s):  
Hao Huang ◽  
Qi Hao ◽  
Xingce Fan ◽  
Zhengwei Luo ◽  
Xiangyu Hou ◽  
...  
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Nanowire Arrays ◽  
Photocatalytic Efficiency ◽  
Broadband Absorption ◽  
Plasmonic Photocatalyst ◽  
Self Assembled

A new hybrid plasmonic photocatalyst, indium tin oxide wrapped bundled TiO2nanowire arrays, with broadband absorption and enhanced photocatalytic efficiency.

Sign in / Sign up

Export Citation Format

Share Document