scholarly journals Molybdenum trioxide thin film recombination barrier layers for dye sensitized solar cells

RSC Advances ◽  
2017 ◽  
Vol 7 (77) ◽  
pp. 48853-48860 ◽  
Author(s):  
Aditya Ashok ◽  
S. N. Vijayaraghavan ◽  
Shantikumar V. Nair ◽  
Mariyappan Shanmugam
Keyword(s):  
Thin Film ◽  
Charge Transport ◽  
Barrier Layer ◽  
Molybdenum Trioxide ◽  
Dye Sensitized Solar Cells ◽  
Electron Hole ◽  
Barrier Layers ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Hole Recombination

MoO3 thin film recombination barrier layer suppresses electron–hole recombination at the FTO–TiO2 interface and facilitates charge transport.

scholarly journals Improvement of Dye Solar Cell Efficiency by Photoanode Posttreatment

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Tanja Ivanovska ◽  
Zoran Saponjic ◽  
Marija Radoicic ◽  
Luca Ortolani ◽  
Vittorio Morandi ◽  
...  
Keyword(s):  
Dye Sensitized Solar Cells ◽  
Trap States ◽  
Electron Recombination ◽  
Electron Hole ◽  
Surface Trap ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Hole Recombination

The basic concept for efficiency improvement in dye-sensitized solar cells (DSSC) is limiting the electron-hole recombination. One way to approach the problem is to improve the photogenerated charge carriers lifetime and consequently reduce their recombination probability. We are reporting on a facile posttreatment of the mesoporous photoanode by using a colloidal solution of TiO2nanoparticles. We have investigated the outcome of the different sintering temperature of the posttreated photoanodes on their morphology as well as on the conversion efficiency of the DSSC. The DSSCs composed of posttreated photoanodes at 450°C showed an increase inJSCand consequently an increase in efficiency of 10%. Investigations were made to determine the electron recombination via the electrolyte by the OCVD technique. We found that the posttreatment has the effect of reducing the surface trap states and thus increases the electron lifetime, which is responsible for the increase of the overall cell efficiency.

Highly efficient long thin-film fiber-shaped dye sensitized solar cells based on a fully organic sensitizer

2021 ◽  
Vol 224 ◽  
pp. 110986
Author(s):  
S. Casadio ◽  
N. Sangiorgi ◽  
A. Sangiorgi ◽  
A. Dessì ◽  
L. Zani ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Highly Efficient ◽  
Sensitized Solar Cells ◽  
Organic Sensitizer

Improving Pore Filling of Gel Electrolyte and Charge Transport in Photoanode for High-Efficiency Quasi-Solid-State Dye-Sensitized Solar Cells

2013 ◽  
Vol 5 (17) ◽  
pp. 8289-8293 ◽  
Author(s):  
Baohua Wang ◽  
Shuai Chang ◽  
Lawrence Tien Lin Lee ◽  
Shizhao Zheng ◽  
King Yong Wong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Charge Transport ◽  
High Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Gel Electrolyte ◽  
Pore Filling ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Enhanced efficiency for dye-sensitized solar cells with ZrO2 as a barrier layer on TiO2 nanofibers

2019 ◽  
Vol 469 ◽  
pp. 821-828 ◽  
Author(s):  
Xiaojie Yang ◽  
Li Zhao ◽  
Kangle Lv ◽  
Binghai Dong ◽  
Shimin Wang
Keyword(s):  
Solar Cells ◽  
Barrier Layer ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Nanofibers ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals Construction of NiMoS3/BC heterostructure photoanodes and optimization of light scattering to improve the photovoltaic performance of dye sensitized solar cells (DSSCs)

2021 ◽  
Author(s):  
T Sumathi ◽  
Sonia A Fredricka ◽  
G Deepa
Keyword(s):  
Solar Cells ◽  
Large Scale ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Photocurrent Density ◽  
Electron Hole ◽  
Dye Sensitized ◽  
Electron Hole Pair ◽  
Conversion Efficiencies ◽  
Sensitized Solar Cells

Abstract In the last two decades, dye sensitized solar cells (DSSCs) have gotten a lot of attention from researchers and have progressed quickly. To promote commercialization and large-scale application of DSSCs, their efficiency should be increased. This paper details significant advancements in advanced NiMoS3/BC nanocomposites for improving photoanodes and DSSC conversion efficiencies. The fabricated electrode samples were characterized by XRD, SEM, TEM, Raman, UV, PL and BET to explore the structural, morphological and optical properties. A significant reduction band gap with enhanced light absorption and rapid prevention of electron hole pair was explored by UV-DRS and PL studies. The photocurrent density-voltage (J-V) and IPCE characteristics were analyzed for assembled solar cell. The NiMoS3/BC (NMSC5) nanocomposite DSSC showed a PCE of 8.85%, far higher than that of the NiMoS3 (2.45%) and a PCE value equivalent to Pt CE (4.79 %). The enhanced PCE of the proposed electrodes are also discussed in scientifically.

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