Ordered silicon nanowire array based solar cells produced by metal assisted chemical etching

Author(s):  
Winston Chern ◽  
Ki Jun Yu ◽  
Debashis Chanda ◽  
Jae Cheol Shin ◽  
John A. Rogers ◽  
...  
Nanomaterials ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1531 ◽  
Author(s):  
Shi Bai ◽  
Yongjun Du ◽  
Chunyan Wang ◽  
Jian Wu ◽  
Koji Sugioka

Surface-enhanced Raman spectroscopy (SERS) has advanced over the last four decades and has become an attractive tool for highly sensitive analysis in fields such as medicine and environmental monitoring. Recently, there has been an urgent demand for reusable and long-lived SERS substrates as a means of reducing the costs associated with this technique To this end, we fabricated a SERS substrate comprising a silicon nanowire array coated with silver nanoparticles, using metal-assisted chemical etching followed by photonic reduction. The morphology and growth mechanism of the SERS substrate were carefully examined and the performance of the fabricated SERS substrate was tested using rhodamine 6G and dopamine hydrochloride. The data show that this new substrate provides an enhancement factor of nearly 1 × 108. This work demonstrates that a silicon nanowire array coated with silver nanoparticles is sensitive and sufficiently robust to allow repeated reuse. These results suggest that this newly developed technique could allow SERS to be used in many commercial applications.


2012 ◽  
Vol 51 (2) ◽  
pp. 02BP09 ◽  
Author(s):  
Shinya Kato ◽  
Yuya Watanabe ◽  
Yasuyoshi Kurokawa ◽  
Akira Yamada ◽  
Yoshimi Ohta ◽  
...  

2012 ◽  
Vol 51 (2S) ◽  
pp. 02BP09 ◽  
Author(s):  
Shinya Kato ◽  
Yuya Watanabe ◽  
Yasuyoshi Kurokawa ◽  
Akira Yamada ◽  
Yoshimi Ohta ◽  
...  

2012 ◽  
Vol 1408 ◽  
Author(s):  
Arif S. Alagoz ◽  
Tansel Karabacak

ABSTRACTMetal-assisted chemical etching is a simple and low-cost silicon nanowire fabrication method which allows control of nanowire diameter, length, shape and orientation. In this work, we fabricated well-ordered silicon nanowire array by patterning gold thin film by nanosphere lithography and etching single crystalline silicon wafer by metal-assisted chemical etching technique. We investigated relation between etched solution concentration and nanowire morphology, wafer crystal orientation, etching rate. This well-ordered silicon nanowires arrays have the potential applications in many fields but especially next generation energy related applications from solar cells to lithium-ion batteries.


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.


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.


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