A review and analysis on growth and optical absorption properties of silicon nanowire array for photovoltaic applications

2015 ◽  
Vol 29 (30) ◽  
pp. 1530007 ◽  
Author(s):  
Ritu Sharma ◽  
Lalit Kumar Dusad

In this paper, optical absorptions in silicon nanowires (SiNWs) arrays obtained from theoretical studies and experimental approaches have been reviewed. A brief description on the different growth techniques for SiNW arrays reported so far is presented. Comparative analysis based on major research findings has been done and the advantages of SiNW-based solar cells over thin film solar cells are presented. Furthermore, future aspects of the use of SiNWs for photovoltaic applications are discussed.

2012 ◽  
Vol 1408 ◽  
Author(s):  
Benjamin M. Curtin ◽  
John E. Bowers

ABSTRACTSilicon nanowires (NWs) are promising thermoelectric materials as they offer large reductions in thermal conductivity over bulk Si without a significant decrease in the Seebeck coefficient or electrical conductivity. In this work, interference lithography was used to pattern a square lattice photoresist template over 2 cm x 2 cm Si substrates. The resulting vertical Si NW arrays were 1 μm tall with a packing density of ~15%, and the diameter of the Si NWs were 80 - 90 nm. The Si NW arrays were then embedded in spin-on glass (SOG) to form a dense composite material with a measured thermal conductivity of 1.45 W/m-K at 300 K. Devices were fabricated for cross-plane Seebeck coefficient measurements and the Si NW/SOG composite was found to have a Seebeck coefficient of roughly -284 μV/K, which is similar to bulk Si with the same doping. We also report a combined power generation of 29.3 μW from both the Si NW array and Si substrate with a temperature difference of 56 K and 50 μm x 50 μm device area.


2011 ◽  
Vol 98 (14) ◽  
pp. 143108 ◽  
Author(s):  
Chen Chen ◽  
Rui Jia ◽  
Haofeng Li ◽  
Yanlong Meng ◽  
Xinyu Liu ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (14) ◽  
pp. 10310-10317 ◽  
Author(s):  
Xiu Gong ◽  
Yurong Jiang ◽  
Meng Li ◽  
Hairui Liu ◽  
Heng Ma

A tapered silicon nanowire array (TSiNWs)/poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS) hybrid solar cell was obtained based on alkali treatment processing.


2011 ◽  
Author(s):  
C. Chen ◽  
R. Jia ◽  
H. Li ◽  
Y. Meng ◽  
S. Kasai ◽  
...  

2020 ◽  
Vol 10 (3) ◽  
pp. 1146 ◽  
Author(s):  
Kangil Kim ◽  
Jae Keun Lee ◽  
Seung Ju Han ◽  
Sangmin Lee

Silicon nanowires are widely used for sensing applications due to their outstanding mechanical, electrical, and optical properties. However, one of the major challenges involves introducing silicon-nanowire arrays to a specific layout location with reproducible and controllable dimensions. Indeed, for integration with microscale structures and circuits, a monolithic wafer-level process based on a top-down silicon-nanowire array fabrication method is essential. For sensors in various electromechanical and photoelectric applications, the need for silicon nanowires (as a functional building block) is increasing, and thus monolithic integration is highly required. In this paper, a novel top-down method for fabricating vertically-stacked silicon-nanowire arrays is presented. This method enables the fabrication of lateral silicon-nanowire arrays in a vertical direction, as well as the fabrication of an increased number of silicon nanowires on a finite dimension. The proposed fabrication method uses a number of processes: photolithography, deep reactive-ion etching, and wet oxidation. In applying the proposed method, a vertically-aligned silicon-nanowire array, in which a single layer consists of three vertical layers with 20 silicon nanowires, is fabricated and analyzed. The diamond-shaped cross-sectional dimension of a single silicon nanowire is approximately 300 nm in width and 20 μm in length. The developed method is expected to result in highly-sensitive, reproducible, and low-cost silicon-nanowire sensors for various biomedical applications.


2011 ◽  
Vol 99 (13) ◽  
pp. 133113 ◽  
Author(s):  
Chao Xie ◽  
Peng Lv ◽  
Biao Nie ◽  
Jiansheng Jie ◽  
Xiwei Zhang ◽  
...  

2014 ◽  
Vol 25 (48) ◽  
pp. 485202 ◽  
Author(s):  
Tasmiat Rahman ◽  
Miguel Navarro-Cía ◽  
Kristel Fobelets

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