Synthesis of highly-ordered hierarchical ZnO nanostructures and their application in dye-sensitized solar cells

2010 ◽  
Vol 45 (10) ◽  
pp. 1075-1078 ◽  
Author(s):  
Y. F. Zhu ◽  
G. H. Zhou ◽  
H. Y. Ding ◽  
A. H. Liu ◽  
Y. B. Lin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Zno Nanostructures ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Evolution of ZnO nanostructures as hexagonal disk: Implementation as photoanode material and efficiency enhancement in Al: ZnO based dye sensitized solar cells

2019 ◽  
Vol 470 ◽  
pp. 1130-1138 ◽  
Author(s):  
Mohammad Ramzan Parra ◽  
Padmini Pandey ◽  
Hafsa Siddiqui ◽  
Vediappan Sudhakar ◽  
Kothandam Krishnamoorthy ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Zno Nanostructures ◽  
Efficiency Enhancement ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Investigation of the effect of reaction parameters on the microwave-assisted hydrothermal synthesis of hierarchical jasmine-flower-like ZnO nanostructures for dye-sensitized solar cells

2016 ◽  
Vol 40 (6) ◽  
pp. 5080-5089 ◽  
Author(s):  
Ramachandran Krishnapriya ◽  
Selvarasu Praneetha ◽  
Arumugam Vadivel Murugan
Keyword(s):  
Solar Cells ◽  
Hydrothermal Reaction ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Zno Nanostructures ◽  
Reaction Parameters ◽  
Dye Sensitized ◽  
Microwave Assisted ◽  
Microwave Hydrothermal ◽  
Sensitized Solar Cells

The influence of the microwave-hydrothermal reaction parameters upon the photovoltaic performance of fabricated jasmine-flower-like ZnO-based dye-sensitized solar cells was investigated.

“Secondary Growth” in Hydrothermal Synthesis of Aligned ZnO Nanostructures and Its Application in Dye-Sensitized Solar Cells

2016 ◽  
Vol 16 (4) ◽  
pp. 4016-4022 ◽  
Author(s):  
Wenjun Liu ◽  
Qiaoling Huang ◽  
Tengji Huang ◽  
Peijiang Cao ◽  
Shun Han ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Electrochemical Impedance ◽  
Morphological Evolution ◽  
Effective Diffusion ◽  
Secondary Growth ◽  
Dye Sensitized Solar Cells ◽  
Zno Nanostructures ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

One-dimensional (1D) aligned ZnO nanostructures were prepared on ZnO film seeded substrates using a low-temperature hydrothermal method, and zinc nitrate and hexamethylenetetramine (HMT) precursors. It was observed that increasing the concentration ratio of Zn2+/HMT from 1 to 100 led to a “secondary growth,” and a change in the morphologies of the ZnO nanostructures from arrays of thick nanorods to arrays of thin nanorod-step-thick nanorods. The morphological evolution of ZnO nanostructures with increased growth time at high Zn2+/HMT concentration ratios showed the same transformation. Dye-sensitized solar cells (DSSCs) were fabricated using ZnO nanostructures as the photoanodes, and the electron transport properties were determined by electrochemical impedance spectroscopy (EIS). Although the DSSCs showed low power conversion efficiencies due to the short lengths, the arrays of the thin nanorods demonstrated excellent electron transport with an electron diffusion coefficient (Dn) of 1.57×10−3 cm2/s, and an effective diffusion length (Ln) of 140 μm.

Effect of ZnO Seed Layer and TiO2 Coating Treatments on Aligned TiO2/ZnO Nanostructures for Dye-Sensitized Solar Cells

2013 ◽  
Vol 479-480 ◽  
pp. 69-74
Author(s):  
Lung Chuan Chen ◽  
Jean Hong Chen ◽  
Shuei Feng Tsai ◽  
Guan Wen Wang
Keyword(s):  
Solar Cells ◽  
Seed Layer ◽  
Zno Nanorods ◽  
Dye Sensitized Solar Cells ◽  
Atomic Ratio ◽  
Band Gap Energy ◽  
Zno Nanostructures ◽  
Dye Sensitized ◽  
Cbd Method ◽  
Sensitized Solar Cells

A chemical bath deposition (CBD) method was applied to grow zinc oxide nanorod arrays on transparent conductive oxides acting as templates for the synthesis of TiO2/ZnO nanostructures (TiO2/ZNR) followed by HCl etching, and then these nanostructures were assembled as anodes in dye-sensitized solar cells. The ZnO nanorods, predominantly grew with good crystallinity along c-axis, exhibit wurtzite structure with smooth surface. Etching of the TiO2/ZNR by HCl changes the most preferential crystal plane of ZnO from (002) to (100) and significantly increases the atomic ratio of Ti/Zn. Optical absorption measurements indicate a band gap energy of 3.1 eV for ZNR and TiO2/ZNR. Increasing the spin coating time (SCT) of TiO2on ZNR increases the PL intensity. The seed layer number (SLN) of ZnO exerts moderate influence on the photo-to-electricity conversion and an optimum SLN was observed for this study.

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