Band-Gap Engineering of Metal Oxides for Dye-Sensitized Solar Cells

2006 ◽  
Vol 110 (43) ◽  
pp. 21899-21902 ◽  
Author(s):  
M. Dürr ◽  
S. Rosselli ◽  
A. Yasuda ◽  
G. Nelles
Keyword(s):  
Solar Cells ◽  
Metal Oxides ◽  
Band Gap ◽  
Dye Sensitized Solar Cells ◽  
Band Gap Engineering ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals Electronic, Structural, and Optical Structure of Mono-Doped and Co-Doped (210) TiO2 Brookite Surfaces for Application in Dye-Sensitized Solar Cells—A First Principles Study

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3918
Author(s):  
Ratshilumela S. Dima ◽  
Lutendo Phuthu ◽  
Nnditshedzeni E. Maluta ◽  
Joseph K. Kirui ◽  
Rapela R. Maphanga
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Dye Sensitized Solar Cells ◽  
Visible Region ◽  
Electromagnetic Spectrum ◽  
Doped Tio2 ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Co Doped ◽  
Optical Structure

Titanium dioxide (TiO2) polymorphs have recently gained a lot of attention in dye-sensitized solar cells (DSSCs). The brookite polymorph, among other TiO2 polymorphs, is now becoming the focus of research in DSSC applications, despite the difficulties in obtaining it as a pure phase experimentally. The current theoretical study used different nonmetals (C, S and N) and (C-S, C-N and S-N) as dopants and co-dopants, respectively, to investigate the effects of mono-doping and co-doping on the electronic, structural, and optical structure properties of (210) TiO2 brookite surfaces, which is the most exposed surface of brookite. The results show that due to the narrowing of the band gap and the presence of impurity levels in the band gap, all mono-doped and co-doped TiO2 brookite (210) surfaces exhibit some redshift. In particular, the C-doped, and C-N co-doped TiO2 brookite (210) surfaces exhibit better absorption in the visible region of the electromagnetic spectrum in comparison to the pure, S-doped, N-doped, C-S co-doped and N-S co-doped TiO2 brookite (210) surfaces.

Metal Oxides for Dye-Sensitized Solar Cells

2009 ◽  
Vol 92 (2) ◽  
pp. 289-301 ◽  
Author(s):  
Rajan Jose ◽  
Velmurugan Thavasi ◽  
Seeram Ramakrishna
Keyword(s):  
Solar Cells ◽  
Metal Oxides ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

An Understanding of the Band Gap Shrinkage in Sn-Doped ZnO for Dye-Sensitized Solar Cells

2017 ◽  
Vol 46 (12) ◽  
pp. 6739-6744 ◽  
Author(s):  
Abdullah Yildiz ◽  
Elif Ozturk ◽  
Abdullah Atilgan ◽  
Mohamed Sbeta ◽  
Aycan Atli ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Doped Zno ◽  
Sensitized Solar Cells

Impact of Molecular Charge-Transfer States on Photocurrent Generation in Solid State Dye-Sensitized Solar Cells Employing Low-Band-Gap Dyes

2014 ◽  
Vol 118 (30) ◽  
pp. 16825-16830 ◽  
Author(s):  
Sai Santosh Kumar Raavi ◽  
Pablo Docampo ◽  
Christian Wehrenfennig ◽  
Marcelo J. P. Alcocer ◽  
Golnaz Sadoughi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Solid State ◽  
Band Gap ◽  
Dye Sensitized Solar Cells ◽  
Low Band Gap ◽  
Dye Sensitized ◽  
Photocurrent Generation ◽  
Molecular Charge ◽  
Sensitized Solar Cells

scholarly journals Sol Gel Synthesized Nanosilica as Photoanode Material for Dye Sensitized Solar Cells (DSSCs) System

2014 ◽  
Vol 625 ◽  
pp. 110-113
Author(s):  
Stephanie Lau Chai Tying ◽  
Coswald Stephen Sipaut ◽  
Jedol Dayou ◽  
Rachel Fran Mansa
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Band Gap ◽  
Surface Area ◽  
High Surface ◽  
Sol Gel ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Dye-sensitized solar cells (DSSCs) have been extensively studied due to their promising potential for high efficiency, low production cost and eco-friendly production. The photoanode of DSSCs is traditionally composed of randomly packed TiO2 nanoparticles which have large specific surface area and suitable band gap (3.2 eV) for the effective injection of electrons from the dye molecules to the semiconductor. However, its high surface charge recombination rate accounts for its low efficiency. Alternatively, silica which is chemically inert, thermally stable, high surface area, and inexpensive can be used to substitute TiO2 as photoanode material. However, bulk silica has a wide band gap of 8.9 eV and its band gap need to be narrowed in order to use it as photoanode materials. Thus, in this study, the effect of nanosilica photoanode and its particle size on the performance of dye sensitized solar cell are investigated and characterized. The result is then compared with the fumed silica and conventional TiO2 DSSCs. Although the results shows that photon-electron conversion is inferior compared to TiO2 photoanode, it has a great potential as the fabrication cost is low and more environmental friendly.Keywords : Dye Sensitized Solar Cell, Photoanode material, Nanosilica, Sol gel synthesis

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