scholarly journals Vertically aligned ZnO/ZnTe core/shell heterostructures on an AZO substrate for improved photovoltaic performance

RSC Advances ◽  
2017 ◽  
Vol 7 (24) ◽  
pp. 14837-14845 ◽  
Author(s):  
Songping Luo ◽  
Xiaoli He ◽  
Heping Shen ◽  
Jianbao Li ◽  
Xuewen Yin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Core Shell ◽  
Vertically Aligned ◽  
Doped Zno ◽  
Sensitized Solar Cells

Vertically aligned ZnO/ZnTe core/shell heterostructures on an Al-doped ZnO substrate developed for sensitized solar cells.

Fabrication of Core-Shell Structured TiO2/MgO Electrodes for Dye-Sensitized Solar Cells

2015 ◽  
Vol 787 ◽  
pp. 3-7 ◽  
Author(s):  
S. Karuppuchamy ◽  
C. Brundha
Keyword(s):  
Solar Cells ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Core Shell ◽  
Dye Sensitized ◽  
The Core ◽  
Sensitized Solar Cells

We demonstrated the construction and performance of dye-sensitized solar cells (DSCs) based on nanoparticles of TiO2coated with thin shells of MgO by simple solution growth technique. The XRD patterns confirm the presence of both TiO2and MgO in the core-shell structure. The effect of varied shell thickness on the photovoltaic performance of the core-shell structured electrode is also investigated. We found that MgO shells of all thicknesses perform as barriers that improve open-circuit voltage (Voc) of the DSCs only at the expense of a larger decrease in short-circuit current density (Jsc). The energy conversion efficiency was greatly dependent on the thickness of MgO on TiO2film, and the highest efficiency of 4.1% was achieved at the optimum MgO shell layer.

Mesoporous F-doped ZnO prism arrays with significantly enhanced photovoltaic performance for dye-sensitized solar cells

2011 ◽  
Vol 196 (23) ◽  
pp. 10518-10525 ◽  
Author(s):  
Lijuan Luo ◽  
Wei Tao ◽  
Xiaoyan Hu ◽  
Ting Xiao ◽  
Bojun Heng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Doped Zno ◽  
Sensitized Solar Cells

Galvanic-Cell-Based Synthesis and Photovoltaic Performance of ZnO-CdS Core-Shell Nanorod Arrays for Quantum Dots Sensitized Solar Cells

2014 ◽  
Vol 618 ◽  
pp. 64-68 ◽  
Author(s):  
Le Ha Chi ◽  
Pham Duy Long ◽  
Hoang Vu Chung ◽  
Do Thi Phuong ◽  
Do Xuan Mai ◽  
...  
Keyword(s):  
Thin Films ◽  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Photovoltaic Performance ◽  
Galvanic Cell ◽  
Core Shell ◽  
Nanorod Arrays ◽  
Cds Quantum Dot ◽  
Sensitized Solar Cells

Zinc oxide (ZnO) is recognized as one of the most attractive metal oxides because of its direct wide band gap (3.37 eV) and large exciton binding energy (60 meV), which make it promising for various applications in solar cells, gas sensors, photocatalysis and so on. Here, we report a facile synthesis to grow well-aligned ZnO nanorod arrays on SnO2: F (FTO) glass substrates without the ZnO seed layer using a Galvanic-cell-based method at low temperature (<100°C). CdS quantum dot thin films were then deposited on the nanorod arrays in turn by an effective successive ionic layer adsorption and reaction (SILAR) process to form a ZnO/CdS core-shell structure electrode. Structural, morphological and optical properties of the ZnO/CdS nanorod heterojunctions were investigated. The results indicate that CdS quantum dot thin films were uniformly deposited on the ZnO nanorods and the thickness of the CdS shell can be controlled by varying the number of the adsorption and reaction cycles. The number of quantum dots layers affects on photovoltaic performance of the ZnO/CdS core-shell nanorod arrays has been investigated as photoanodes in quantum dots sensitized solar cells.

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