scholarly journals A simulation study on the effect of size gold nanoparticles on broadband light absorption in dye-sensitised solar cells

2021 ◽  
Vol 67 (3 May-Jun) ◽  
pp. 509
Author(s):  
Karwan Wasman Qadir

Plasmon-assisted energy conversion in dye-sensitised solar cells (DSSCs) has been achieved by applying gold (Au) nanoparticles (NPs) inside Titania (TiO2) photoanodes. Gold nanoparticles (GNPs) were introduced into DSSCs to further enhance their power conversion efficiency (PCE). In this research work, an effort has been made to enhance the optical absorption and improve the performance of DSSCs. By utilising finite-difference time-domain (FDTD) software, GNPs with radii of 15, 25, 35, 45, 55, 65, 75 and 85 nm were produced and introduced into the TiO2 photoanode. The optimum radius for the optical absorption enhancement was found to be 85 nm because the effect of plasmon coupling is more significant for metal nanoparticle sizes > 60 nm. The effect of various sizes of GNPs on light scattering has also been presented in this study. Moreover, the investigation has focused on the role of incident angle of light source on the absorption in TiO2 films. It was found that the optimum incident angle for the enhancement of broadband optical absorption in the wavelength range of 450–800 nm is 70°.

2015 ◽  
Vol 7 (44) ◽  
pp. 24430-24437 ◽  
Author(s):  
Yingguo Yang ◽  
Shanglei Feng ◽  
Meng Li ◽  
Zhongwei Wu ◽  
Xiao Fang ◽  
...  

2014 ◽  
Vol 104 (24) ◽  
pp. 243904 ◽  
Author(s):  
Feng-Shuo Zu ◽  
Xiao-Bo Shi ◽  
Jian Liang ◽  
Mei-Feng Xu ◽  
Chun-Sing Lee ◽  
...  

2017 ◽  
Vol 33 (1) ◽  
pp. 015011 ◽  
Author(s):  
Ziang Xie ◽  
Shuren Sun ◽  
Xixi Xie ◽  
Ruixiang Hou ◽  
Wanjin Xu ◽  
...  

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Nasim Sahraei ◽  
Selvaraj Venkataraj ◽  
Premachandran Vayalakkara ◽  
Armin G. Aberle

One of the key issues of thin-film silicon solar cells is their limited optical absorptance due to the thin absorber layer and the low absorption coefficient for near-infrared wavelengths. Texturing of one or more interfaces in the layered structure of these cells is an important technique to scatter light and enhance the optical pathlength. This in turn enhances the optical absorption of the solar radiation in the absorber layer and improves the solar cell efficiency. In this paper we investigate the effects of textured glass superstrate surfaces on the optical absorptance of intrinsic a-Si:H films and a-Si:Hp-i-nthin-film solar cell precursors deposited onto them. The silicon-facing surface of the glass sheets was textured with the aluminium-induced glass texturing method (AIT method). Absorption in both intrinsic silicon films and solar cell precursor structures is found to increase strongly due to the textured glass superstrate. The increased absorption due to the AIT glass opens up the possibility to reduce the absorber layer thickness of a-Si:H solar cells.


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