Interfacial Confined Formation of Mesoporous Spherical TiO2Nanostructures with Improved Photoelectric Conversion Efficiency

2010 ◽  
Vol 49 (12) ◽  
pp. 5453-5459 ◽  
Author(s):  
Wei Shao ◽  
Feng Gu ◽  
Chunzhong Li ◽  
Mengkai Lu
Keyword(s):  
Conversion Efficiency ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion

Interfacial self-assembly engineering for constructing a 2D flexible superlattice polyoxometalate/rGO heterojunction for high-performance photovoltaic devices

2020 ◽  
Vol 49 (12) ◽  
pp. 3766-3774 ◽  
Author(s):  
Jianping Li ◽  
Dai Wu ◽  
Chunlei Wang ◽  
Ding Liu ◽  
Weilin Chen ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Self Assembly ◽  
High Performance ◽  
Photoelectric Conversion Efficiency ◽  
Photovoltaic Devices ◽  
Photoelectric Conversion

The strategy of constructing a 2D flexible superlattice polyoxometalate/rGO heterojunction is proposed to improve the photoelectric conversion efficiency of photovoltaic devices.

scholarly journals Effect of Core-Shell Ag@TiO2Volume Ratio on Characteristics of TiO2-Based DSSCs

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Ho Chang ◽  
Chih-Hao Chen ◽  
Mu-Jung Kao ◽  
Hsin-Han Hsiao
Keyword(s):  
Conversion Efficiency ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Open Circuit ◽  
Photoelectric Conversion Efficiency ◽  
Core Shell ◽  
Photoelectric Conversion ◽  
Shell Type ◽  
Degussa P25 ◽  
Triton X

This paper aims to develop photoanode material required by dye-sensitized solar cells. The material prepared is in the form of Ag@TiO2core-shell-type nanocomposites. This material is used to replace the titanium oxide powder commonly used in general DSSCs. The prepared Ag@TiO2core-shell-type nanocomposites are mixed with Degussa P25 TiO2in different proportions. Triton X-100 is added and polyethylene glycol (PEG) at 20 wt% is used as a polymer additive. This study tests the particle size and material properties of Ag@TiO2core-shell-type nanocomposites and measures the photoelectric conversion efficiency and IPCE of DSSCs. Experimental results show that the DSSC prepared by Ag@TiO2core-shell-type nanocomposites can achieve a photoelectric conversion efficiency of 3.67%. When Ag@TiO2core-shell-type nanocomposites are mixed with P25 nanoparticles in specific proportions, and when the thickness of the photoelectrode thin film is 28 μm, the photoelectric conversion efficiency can reach 6.06%, with a fill factor of 0.52, open-circuit voltage of 0.64V, and short-circuit density of 18.22 mAcm−2. Compared to the DSSC prepared by P25 TiO2only, the photoelectric conversion efficiency can be raised by 38% under the proposed approach.

Research on the Photoelectric Conversion Efficiency of Grating Anti-Reflective Layer Solar Cells

2011 ◽  
Vol 216 ◽  
pp. 355-359 ◽  
Author(s):  
Hui Zhong ◽  
Yong Yi Gao ◽  
Ren Long Zhou ◽  
Bing Ju Zhou ◽  
Li Qiang Tang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Storage ◽  
Conversion Efficiency ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Grating Structure ◽  
Reflective Layer ◽  
Surface Grating ◽  
Coated Metal ◽  
Difference Time

The effect of grating structure on the photoelectric conversion efficiency of solar cells is studied with the finite-difference time-domain method. The influence of grating shape, height and the thickness of coated metal film is analysed. It is found that the variation of grating shape and height makes great changes of energy storage, especially of the photoelectric conversion efficiency and energy storage of the triangle grating. The comparison between un-optimized and optimized surface grating structure on solar cells shows that the optimized grating surface significantly increases the energy storage capability and greatly improves the efficiency.

Enhancement effect on photoelectric conversion efficiency of plasmon-induced terahertz photoconductive antenna

Optik ◽  
2021 ◽  
Vol 227 ◽  
pp. 166021
Author(s):  
Jinhai Sun ◽  
He Cai ◽  
Mingde Li ◽  
Yun Xu ◽  
Guizhen Lu ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Photoelectric Conversion Efficiency ◽  
Enhancement Effect ◽  
Photoconductive Antenna ◽  
Photoelectric Conversion

Dye-Sensitized Solar Cells Based on Three-Dimensional Web-Like Structure Anodes

2012 ◽  
Vol 629 ◽  
pp. 332-338 ◽  
Author(s):  
Zhi Hua Tian ◽  
Jian Xi Yao ◽  
Mi Na Guli
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Three Dimensional ◽  
Precursor Solution ◽  
Photoelectric Conversion Efficiency ◽  
Tio2 Films ◽  
Photoelectric Conversion ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

TiO2 films with three-dimensional web-like structure have been prepared by the photo polymerization-induced phase separation method (PIPS). Scanning electron microscopy and X-ray diffraction were used to characterize the as-prepared TiO2 films. The results showed that the film texture could be tuned by changing the composition of the precursor solution. The TiO2 film with web-like structure exhibited high photocatalytic activity for the degradation of methylene blue (MB) dye. The as-prepared films were used as the photo-anodes in dye-sensitized solar cells (DSCs). The photoelectric conversion efficiency of the DSCs was significantly enhanced by changing the POGTA/TTB in the precursor solution. Because of the increased dye adsorption active sites and efficient electron transport in the TiO2 anode film, a photoelectric conversion efficiency of 3.015% was obtained.

scholarly journals Effect of Cl doping amount on the microstructure, photovoltaic properties and ferroelectric properties of Bi-based lead-free perovskite

2019 ◽  
Vol 09 (02) ◽  
pp. 1950013 ◽  
Author(s):  
Shilong Zhang ◽  
Ruicheng Xu ◽  
Zhendong Li ◽  
Qianwei Zhang ◽  
Li Cheng ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Ferroelectric Properties ◽  
Lead Toxicity ◽  
Lead Free ◽  
Photoelectric Conversion Efficiency ◽  
Doping Content ◽  
Doping Amount ◽  
Photoelectric Conversion ◽  
Photovoltaic Properties ◽  
Transport Dynamics

Organic–inorganic hybrid perovskites with 3D perovskite structure have gained much attention as light harvesting materials in thin-film photovoltaics. This is because of their outstanding light-absorption characteristics, charge-transport dynamics and their simple processability using lab-scale solution and vapor phase deposition techniques. However, the inherent instability and lead toxicity of lead-based PSCs are the major problems at present. Recent studies have shown that the (CH3NH[Formula: see text]Bi2I9 (MBI) 0D bismuth-based compound can be used as an optical absorption layer in solar cells. In this paper, the (CH3NH[Formula: see text]Bi2I9 was doped with Cl− and a series of (CH3NH[Formula: see text]Bi2I[Formula: see text]Clx films were prepared. The effects of different doping amounts on the microstructure, photovoltaic properties and ferroelectric properties were systematically investigated. Scanning electron microscope (SEM) and Atomic force microscope (AFM) analysis showed that with the increase of doping content, the density of the films increased and the roughness decreased. The photoelectric conversion efficiency of (CH3NH[Formula: see text]Bi2I[Formula: see text]Clx raises with the increase of doping content. For example, the photoelectric conversion efficiency of (CH3NH[Formula: see text]Bi2I3Cl6 is 0.473%. We find that the leakage current descends into the increase in doping content, which may be due to the increase in the film density and the decrease of porosity. These research results have a positive effect on the development of Bi-based lead-free perovskite.

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