Enhanced light harvesting in dye‐sensitized solar cells enabled by TiO 2 :Er 3+ , Yb 3+ upconversion phosphor particles as solar spectral converter and light scattering medium

2021 ◽  
Author(s):  
Xiuting Luo ◽  
Jeong Geun Cha ◽  
Guiming Fu ◽  
Hyung Woo Lee ◽  
Soo Hyung Kim
Keyword(s):  
Solar Cells ◽  
Light Scattering ◽  
Light Harvesting ◽  
Dye Sensitized Solar Cells ◽  
Scattering Medium ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Spectral Converter

scholarly journals Dyes Amount and Light Scattering Influence on the Photocurrent Enhancement of Titanium Dioxide Hierarchically Structured Photoanodes for Dye-Sensitized Solar Cells

Coatings ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 13 ◽  
Author(s):  
Wen-Yao Huang ◽  
Tung-Li Hsieh
Keyword(s):  
Titanium Dioxide ◽  
Solar Cells ◽  
Light Scattering ◽  
Light Harvesting ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Strong Light ◽  
Dye Sensitized ◽  
Dye Loading ◽  
Sensitized Solar Cells

In this study, we prepared and analyzed the properties of hill-like hierarchically structured titanium dioxide (TiO2) photoanodes for dye-sensitized solar cells (DSSCs). We expected that the presence of appropriately aggregated TiO2 clusters in the photoanode layer would translate to relatively strong light scattering and dye loading, increasing the photovoltaic efficiency. A detailed light-harvesting study was performed by employing polyvinyl alcohol (PVA) polymers of different molecular weights as binders for the aggregation of the TiO2 nanoparticles (P-25 Degussa). Hence, we obtained a series of TiO2 films, presenting a variety of morphologies. Their reflection, as well as absorbance of light by the attached dye, the amount of dye loading, and the performance of the fabricated DSSC devices were investigated. Our optimized device, with a relatively high dye loading and good light harvesting ability, was able to enhance the short-circuit current (Jsc) in the DSSCs by 23%.

Preparation of YbF3-Ho@TiO2 core–shell sub-microcrystal spheres and their application to the electrode of dye-sensitized solar cells

2020 ◽  
Vol 44 (25) ◽  
pp. 10545-10553
Author(s):  
Jia Yu ◽  
Yulin Yang ◽  
Chuanxiang Zhang ◽  
Ruiqing Fan ◽  
Ting Su
Keyword(s):  
Solar Cells ◽  
Light Scattering ◽  
Charge Separation ◽  
Light Harvesting ◽  
Dye Sensitized Solar Cells ◽  
Recombination Process ◽  
Core Shell ◽  
Dye Sensitized ◽  
Nir Light ◽  
Sensitized Solar Cells

The TiO2/YbF3-Ho@TiO2 heterostructure with light-scattering and NIR-light harvesting characteristics can facilitate charge separation, suppress recombination process and prolong the lifetime of electrons.

scholarly journals A dual-functional NaLuF4:Yb3+/Er3+ material for enhancing photon harvesting in dye-sensitized solar cells

RSC Advances ◽  
2017 ◽  
Vol 7 (61) ◽  
pp. 38506-38511 ◽  
Author(s):  
Haiyong Guo ◽  
Zhen Hu ◽  
Li Zhao ◽  
Li Wan ◽  
Yadan Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Light Scattering ◽  
Near Infrared ◽  
Light Harvesting ◽  
Dye Sensitized Solar Cells ◽  
Infrared Light ◽  
Dye Sensitized ◽  
Dual Functional ◽  
New Strategy ◽  
Sensitized Solar Cells

A new strategy to improve the efficiency of dye-sensitized solar cells by using the external near-infrared light harvesting and light-scattering dual-functional upconversion (UC) material NaLuF4:Yb3+/Er3+ is proposed.

Co-sensitization promoted light harvesting for plastic dye-sensitized solar cells

2011 ◽  
Vol 196 (4) ◽  
pp. 2416-2421 ◽  
Author(s):  
Kun-Mu Lee ◽  
Ying-Chan Hsu ◽  
Masashi Ikegami ◽  
Tsutomu Miyasaka ◽  
K.R. Justin Thomas ◽  
...  
Keyword(s):  
Solar Cells ◽  
Light Harvesting ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Facile preparation of hierarchical TiO2nanowire–nanoparticle/nanotube architecture for highly efficient dye-sensitized solar cells

2015 ◽  
Vol 3 (40) ◽  
pp. 20366-20374 ◽  
Author(s):  
Nianqing Fu ◽  
Yan Liu ◽  
Yanchun Liu ◽  
Wei Lu ◽  
Limin Zhou ◽  
...  
Keyword(s):  
Solar Cells ◽  
Light Scattering ◽  
Surface Area ◽  
High Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
One Step ◽  
Facile Preparation ◽  
Sensitized Solar Cells ◽  
Light Scattering Effect

Hierarchical TiO2architecture with a remarkably improved surface area and light scattering effect was preparedviaone-step post-treatment for dye-sensitized solar cells, achieving a high efficiency of 8.82%.

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