Recombination in SnO2-Based Quantum Dots Sensitized Solar Cells: The Role of Surface States

2013 ◽  
Vol 117 (21) ◽  
pp. 10965-10973 ◽  
Author(s):  
Qingli Huang ◽  
Fan Li ◽  
Yun Gong ◽  
Jianheng Luo ◽  
Shize Yang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Surface States ◽  
Sensitized Solar Cells

On the Role of the Anchoring Unit in the Efficiency of Pyranoanthocyanin-based Dye-Sensitized Solar Cells

2019 ◽  
Author(s):  
Ana Lucia Pinto ◽  
Luis Cruz ◽  
Vânia Gomes ◽  
Hugo Cruz ◽  
Giuseppe Calogero ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals High efficiency dye-sensitized solar cells with VOC–JSC trade off eradication by interfacial engineering of the photoanode|electrolyte interface

RSC Advances ◽  
2019 ◽  
Vol 9 (69) ◽  
pp. 40292-40300
Author(s):  
Anantharaj Gopalraman ◽  
Subbian Karuppuchamy ◽  
Saranyan Vijayaraghavan
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
High Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Surface States ◽  
Trade Off ◽  
Interfacial Engineering ◽  
Dye Sensitized ◽  
Electrolyte Interface ◽  
Sensitized Solar Cells

VOC–JSC trade off is eliminated. Newly created surface states by OA in TiO2 facilitated the charge transfer kinetics.

Anisotropic Nanostructure ZnO Photoelectrodes for CdS/CdSe Quantum Dot Sensitized Solar Cells

2013 ◽  
Vol 873 ◽  
pp. 556-561
Author(s):  
Jian Jun Tian
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Chemical Bath Deposition ◽  
Cdse Quantum Dots ◽  
Silar Method ◽  
Nanorods Array ◽  
Cdse Quantum Dot ◽  
Cbd Method ◽  
Sensitized Solar Cells

CdS/CdSe quantum dots co-sensitized solar cells (QDSCs) were prepared by combining the successive ion layer absorption and reaction (SILAR) method and chemical bath deposition (CBD) method for the fabrication of CdS and CdSe quantum dots, respectively. In this work, we designed anisotropic nanostructure ZnO photoelectrodes, such as nanorods/nanosheets and nanorods array, for CdS/CdSe quantum dots co-sensitized solar cells. Our study revealed that the performance of QDSCs could be improved by modifying surface of ZnO to increase the loading of quantum dots and reduce the charge recombination.

Investigation of the role of anions in hydrotalcite for quasi-solid state dye-sensitized solar cells application

2013 ◽  
Vol 1 (13) ◽  
pp. 4345 ◽  
Author(s):  
Xiu Wang ◽  
Ran Deng ◽  
Sneha A. Kulkarni ◽  
Xiaoyan Wang ◽  
Stevin Snellius Pramana ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Role of Pristine and Acid-Functionalized Fullerene on Breaking Dye Aggregates and its Impact on the Efficiency of Solar Cells

2014 ◽  
Vol 67 (5) ◽  
pp. 819
Author(s):  
Syed Mujtaba Shah ◽  
Zafar Iqbal ◽  
Muzaffar Iqbal ◽  
Naila Shahzad ◽  
Amina Hana ◽  
...  
Keyword(s):  
Solar Cells ◽  
Zno Nanoparticles ◽  
Self Assembly ◽  
Zno Nanorods ◽  
Active Material ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Transmission Electron ◽  
Sensitized Solar Cells

Porphyrin dyes have an inherent tendency to aggregate. This leads to a self-quenching phenomenon that hinders electron transfer to the conduction band of semiconductors in dye-sensitized solar cells. Self-quenching adversely affects the efficiency of solar cells. Here, we report the interaction of porphyrin with pristine and acid-functionalized fullerene molecules on the surface of ZnO nanoparticles under chemisorbed conditions. Chemisorption of porphyrin only on ZnO nanoparticles instigates aggregation of the porphyrin molecules. These aggregates can be effectively broken by chemisorbing fullerene molecules on the surface of the ZnO nanoparticles. This is due to self-assembly formation processes because of porphyrin–fullerene interactions. The nanohybrid material, consisting of ZnO nanorods, acid-functionalized porphyrin, and fullerene derivatives, was characterized by UV–visible spectroscopy, fourier transform infrared spectroscopy, fluorescence spectroscopy, and transmission electron microscopy. The material generates better performing dye-sensitized solar cells when compared with those fabricated from porphyrin-based photo-active material.

Optimizing phthalocyanine based dye-sensitized solar cells: The role of reduced graphene oxide

2018 ◽  
Vol 246 ◽  
pp. 236-245 ◽  
Author(s):  
Francis Chindeka ◽  
Philani Mashazi ◽  
Jonathan Britton ◽  
Gertrude Fomo ◽  
David O. Oluwole ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Reduced Graphene Oxide ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Reduced Graphene ◽  
Sensitized Solar Cells

scholarly journals A study of the degradation process of quantum dots sensitized solar cells

2018 ◽  
Vol 9 (4) ◽  
pp. 045008
Author(s):  
Ha Thanh Tung ◽  
Bui Van Thang ◽  
Nguyen Thu Thao ◽  
Nguyen Tan Phat ◽  
Huynh Thanh Dat ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Degradation Process ◽  
Sensitized Solar Cells
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