Roles of binding energy and diffusion length of singlet and triplet excitons in organic heterojunction solar cells

2012 ◽  
Vol 9 (12) ◽  
pp. 2386-2389 ◽  
Author(s):  
Monishka Rita Narayan ◽  
Jai Singh
Keyword(s):  
Solar Cells ◽  
Binding Energy ◽  
Diffusion Length ◽  
Heterojunction Solar Cells ◽  
And Diffusion ◽  
Triplet Excitons

scholarly journals Preparation and Characterization of Chitosan Binder-Based Electrode for Dye-Sensitized Solar Cells

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
En Mei Jin ◽  
Kyung-Hee Park ◽  
Ju-Young Park ◽  
Jae-Wook Lee ◽  
Soon-Ho Yim ◽  
...  
Keyword(s):  
Diffusion Coefficient ◽  
Solar Cells ◽  
Transit Time ◽  
Diffusion Length ◽  
Dye Sensitized Solar Cells ◽  
Electron Recombination ◽  
Recombination Lifetime ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
And Diffusion

A chitosan binder-based TiO2photoelectrode is used in dye-sensitized solar cells (DSSCs). Field-emission scanning electron microscope (FE-SEM) images revealed that the grain size, thickness, and distribution of TiO2films are affected by the chitosan content. With addition of 2.0 wt% chitosan to the TiO2film (D2), the surface pore size became the smallest, and the pores were fairly evenly distributed. The electron transit time, electron recombination lifetime, diffusion coefficient, and diffusion length were analyzed by IMVS and IMPS. The best DSSC, with 2.0 wt% chitosan addition to the TiO2film, had a shorter electron transit time, longer electron recombination lifetime, and larger diffusion coefficient and diffusion length than the other samples. The results of 2.0 wt% chitosan-added TiO2DSSCs are an electron transit time of  s, electron recombination lifetime of  s, diffusion coefficient of  cm2s−1, diffusion length of 14.81 μm, and a solar conversion efficiency of 4.18%.

Changes in lifetime and diffusion length due to the electron and proton bombardment of silicon solar cells

Solar Cells ◽  
1980 ◽  
Vol 2 (1) ◽  
pp. 31-42 ◽  
Author(s):  
D. Bielle-Daspet ◽  
L. Castaner ◽  
G. Gasset ◽  
M. Benzohra
Keyword(s):  
Solar Cells ◽  
Diffusion Length ◽  
Silicon Solar Cells ◽  
Proton Bombardment ◽  
And Diffusion

Measuring the exciton diffusion length of C60 in organic planar heterojunction solar cells

2011 ◽  
Vol 208 (8) ◽  
pp. 1967-1971 ◽  
Author(s):  
Dashan Qin ◽  
Peng Gu ◽  
Rudra Sankar Dhar ◽  
Seyed Ghasem Razavipour ◽  
Dayan Ban
Keyword(s):  
Solar Cells ◽  
Diffusion Length ◽  
Heterojunction Solar Cells ◽  
Exciton Diffusion ◽  
Exciton Diffusion Length ◽  
Planar Heterojunction Solar Cells ◽  
Planar Heterojunction

Delayed fluorescence material-assisted high performance ternary organic solar cells realized by prolonged exciton lifetime and diffusion length

2020 ◽  
Vol 8 (48) ◽  
pp. 17429-17439
Author(s):  
Luye Cao ◽  
Xiaoyang Du ◽  
Hui Lin ◽  
Caijun Zheng ◽  
Zhenhua Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Diffusion Length ◽  
Delayed Fluorescence ◽  
Exciton Lifetime ◽  
Fluorescence Material ◽  
And Diffusion

The addition of DF materials into ternary OSCs offers possibilities for prolonging the exciton lifetime and diffusion length.

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