Polyoxometalate–anatase TiO2 composites are introduced into the photoanode of dye-sensitized solar cells to retard the recombination and increase the electron lifetime

2013 ◽  
Vol 42 (8) ◽  
pp. 2691 ◽  
Author(s):  
Shi-Ming Wang ◽  
Lin Liu ◽  
Wei-Lin Chen ◽  
En-Bo Wang ◽  
Zhong-Min Su
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Anatase Tio2 ◽  
Electron Lifetime ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

TiO2 Film Morphology, Electron Transport and Electron Lifetime in Ultra-fast Sintered Dye-sensitized Solar Cells

2013 ◽  
Vol 1493 ◽  
pp. 121-126
Author(s):  
Matthew J. Carnie ◽  
Cecile Charbonneau ◽  
Matthew Davies ◽  
Ian Mabbett ◽  
Trystan Watson ◽  
...  
Keyword(s):  
Phase Transition ◽  
Solar Cells ◽  
Electron Transport ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Rutile Phase ◽  
Morphological Properties ◽  
Electron Lifetime ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

ABSTRACTWith the application of near-infrared radiation (NIR), TiO2 films for dye-sensitized solar cells (DSCs) on metallic substrates can be sintered in just 12.5 s. The photovoltaic performance of devices made with NIR sintered films match those devices made with conventionally sintered films prepared by heating for 1800 s. Here we characterise the electron transport, electron lifetime and phase-morphological properties of ultrafast NIR sintered films, using impedance spectroscopy, transient photovoltage decay and x-ray diffraction measurements. An important factor in NIR processing of TiO2 films is the peak metal temperature (PMT) and we show that during the 12.5 second heat treatment that a PMT of around 635 °C gives near identical electron transport, electron lifetime and morphological properties, as well comparable photovoltaic performance to a conventionally sintered (500 °C, 30 mins) film. What is perhaps most interesting is that the rapid heating of the TiO2 (to temperatures of up to 785°C) does not lead to a large scale rutile phase transition. As such photovoltaic performance of resultant DSC devices is maintained even though the TiO2 has been at temperatures which traditionally would have reduced cell photocurrents via anatase-to-rutile phase transition.

Enhancing the performance of dye-sensitized solar cells: doping SnO2photoanodes with Al to simultaneously improve conduction band and electron lifetime

2015 ◽  
Vol 3 (6) ◽  
pp. 3066-3073 ◽  
Author(s):  
Yandong Duan ◽  
Jiaxin Zheng ◽  
Nianqing Fu ◽  
Yanyan Fang ◽  
Tongchao Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conduction Band ◽  
High Performance ◽  
Dye Sensitized Solar Cells ◽  
Electron Lifetime ◽  
Al Doping ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Al-doping of SnO2photoanodes can simultaneously improve conduction band and electron lifetime of high-performance dye-sensitized solar cells.

High-performance flexible dye-sensitized solar cells by using hierarchical anatase TiO2 nanowire arrays

RSC Advances ◽  
2015 ◽  
Vol 5 (107) ◽  
pp. 88052-88058 ◽  
Author(s):  
Zhisheng Chai ◽  
Jiuwang Gu ◽  
Javid Khan ◽  
Yufei Yuan ◽  
Lianhuan Du ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Dye Sensitized Solar Cells ◽  
Anatase Tio2 ◽  
Nanowire Arrays ◽  
Dye Sensitized ◽  
Tio2 Nanowire ◽  
Sensitized Solar Cells

Thin, lightweight and flexible dye-sensitized solar cells (DSSCs) using three different kinds of TiO2 nanostructures grown on Ti meshes as photoanodes have been fabricated.

Enhancement of electron lifetime in dye-sensitized solar cells using anodically grown TiO2 nanotube/nanoparticle composite photoanodes

2013 ◽  
Vol 111 ◽  
pp. 137-142 ◽  
Author(s):  
Andrea Lamberti ◽  
Adriano Sacco ◽  
Stefano Bianco ◽  
Marzia Quaglio ◽  
Diego Manfredi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Nanotube ◽  
Electron Lifetime ◽  
Dye Sensitized ◽  
Sensitized Solar Cells
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