Optimal design of one-dimensional photonic crystal back reflectors for thin-film silicon solar cells

2014 ◽  
Vol 116 (6) ◽  
pp. 064508 ◽  
Author(s):  
Peizhuan Chen ◽  
Guofu Hou ◽  
Jianjun Zhang ◽  
Xiaodan Zhang ◽  
Ying Zhao
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Photonic Crystal ◽  
Optimal Design ◽  
Silicon Solar Cells ◽  
One Dimensional ◽  
Dimensional Photonic Crystal ◽  
Thin Film Silicon ◽  
Back Reflectors

Thin-film silicon solar cells applying optically decoupled back reflectors

2013 ◽  
Vol 178 (9) ◽  
pp. 645-650 ◽  
Author(s):  
E. Moulin ◽  
U.W. Paetzold ◽  
K. Bittkau ◽  
M. Ermes ◽  
L. Ding ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Silicon Solar Cells ◽  
Thin Film Silicon ◽  
Back Reflectors

Light-trapping in Thin Film Silicon Solar Cells with a Combination of Periodic and Randomly Textured Back-reflectors

2012 ◽  
Vol 1426 ◽  
pp. 117-123 ◽  
Author(s):  
Sambit Pattnaik ◽  
Nayan Chakravarty ◽  
Rana Biswas ◽  
D. Slafer ◽  
Vikram Dalal
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Light Absorption ◽  
Nanoimprint Lithography ◽  
Light Trapping ◽  
Silicon Solar Cells ◽  
Long Wavelength ◽  
Thin Film Silicon ◽  
Back Reflectors ◽  
Back Reflector

ABSTRACTLight trapping is essential to harvest long wavelength red and near-infrared photons in thin film silicon solar cells. Traditionally light trapping has been achieved with a randomly roughened Ag/ZnO back reflector, which scatters incoming light uniformly through all angles, and enhances currents and cell efficiencies over a flat back reflector. A new approach using periodically textured photonic-plasmonic arrays has been recently shown to be very promising for harvesting long wavelength photons, through diffraction of light and plasmonic light concentration. Here we investigate the combination of these two approaches of random scattering and plasmonic effects to increase cell performance even further. An array of periodic conical back reflectors was fabricated by nanoimprint lithography and coated with Ag. These back reflectors were systematically annealed to generate different amounts of random texture, at smaller spatial scales, superimposed on a larger scale periodic texture. nc-Si solar cells were grown on flat, periodic photonic-plasmonic substrates, and randomly roughened photonic-plasmonic substrates. There were large improvements (>20%) in the current and light absorption of the photonic-plasmonic substrates relative to flat. The additional random features introduced on the photonic-plasmonic substrates did not improve the current and light absorption further, over a large range of randomization features.

Periodic Structures for Improved Light Management in Thin-film Silicon Solar Cells

2008 ◽  
Vol 1101 ◽  
Author(s):  
Janez Krc ◽  
Andrej Campa ◽  
Stefan L. Luxembourg ◽  
Miro Zeman ◽  
Marko Topic
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Photonic Crystal ◽  
Amorphous Silicon ◽  
Periodic Structures ◽  
Light Trapping ◽  
Silicon Solar Cells ◽  
Thin Film Silicon ◽  
Light Management

AbstractAdvanced light management in thin-film solar cells is important in order to improve the photo-current and, thus, to raise up the conversion efficiencies of the solar cells. In this article two types of periodic structures ¡V one-dimensional diffraction gratings and photonic crystals,are analyzed in the direction of showing their potential for improved light trapping in thin-film silicon solar cells. The anti-reflective effects and enhanced scattering at the gratings with the triangular and rectangular features are studied by means of two-dimensional optical simulations. Simulations of the complete microcrystalline solar cell incorporating the gratings at all interfaces are presented. Critical optical issues to be overcome for achieving the performances of the cells with the optimized randomly textured interfaces are pointed out. Reflectance measurements for the designed 12 layer photonic crystal stack consisting of amorphous silicon nitride and amorphous silicon layers are presented and compared with the simulations. High reflectance (up to 99 %) of the stack is measured for a broad wavelength spectrum. By means of optical simulations the potential for using a simple photonic crystal structure as a back reflector in an amorphous silicon solar cell is demonstrated.

scholarly journals One-dimensional photonic crystal(1D PC)-based back reflectors for amorphous silicon thin film solar cell

2014 ◽  
Vol 63 (7) ◽  
pp. 077301
Author(s):  
Chen Pei-Zhuan ◽  
Hou Guo-Fu ◽  
Suo Song ◽  
Ni Jian ◽  
Zhang Jian-Jun ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cell ◽  
Photonic Crystal ◽  
Amorphous Silicon ◽  
Thin Film Solar Cell ◽  
Silicon Thin Film ◽  
One Dimensional ◽  
Dimensional Photonic Crystal ◽  
Back Reflectors

Progress in thin-film silicon solar cells based on photonic-crystal structures

2018 ◽  
Vol 57 (6) ◽  
pp. 060101 ◽  
Author(s):  
Kenji Ishizaki ◽  
Menaka De Zoysa ◽  
Yoshinori Tanaka ◽  
Seung-Woo Jeon ◽  
Susumu Noda
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Photonic Crystal ◽  
Crystal Structures ◽  
Silicon Solar Cells ◽  
Thin Film Silicon
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