scholarly journals Design of SnO2 Aggregate/Nanosheet Composite Structures Based on Function-Matching Strategy for Enhanced Dye-Sensitized Solar Cell Performance

Materials ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 1774 ◽  
Author(s):  
Dongting Wang ◽  
Shangheng Liu ◽  
Mingfa Shao ◽  
Jinghan Zhao ◽  
Yukun Gu ◽  
...  
Keyword(s):  
Composite Structures ◽  
Rapid Development ◽  
Dye Sensitized Solar Cells ◽  
Strong Light ◽  
Solar Cell Performance ◽  
Dye Sensitized ◽  
Drying Treatment ◽  
Matching Strategy ◽  
Sno2 Nanosheet ◽  
And Control

Hierarchical SnO2 nanocrystallites aggregates (NAs) were prepared with a simple room temperature–based aqueous solution method followed by simple freeze-drying treatment. The as-prepared SnO2 NAs were subsequently combined with SnO2 nanosheet–based structures from the viewpoint of a function-matching strategy, and under an optimized condition, a power conversion efficiency (PCE) of 5.59% was obtained for the resultant hybrid photoanode, a remarkable 60% enhancement compared to that of dye-sensitized solar cells (DSCs) fabricated with bare SnO2 NAs architecture. The significantly enhanced efficiency can be attributed to the combination of the desirable electron transport property obtained by the intentionally introduced SnO2 nanosheets (NSs) and the effectively retained inherent characteristics of SnO2 NAs, i.e., large surface area and strong light-scattering effect. This work provides a promising approach for the rapid development of highly efficient SnO2 photoanode film-based DSCs with the properties of simplicity of operation and control over the photoanode composition.

Improvement of D–π–A organic dye-based dye-sensitized solar cell performance by simple triphenylamine donor substitutions on the π-linker of the dye

2017 ◽  
Vol 1 (6) ◽  
pp. 1059-1072 ◽  
Author(s):  
N. Prachumrak ◽  
T. Sudyoadsuk ◽  
A. Thangthong ◽  
P. Nalaoh ◽  
S. Jungsuttiwong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Dye Sensitized Solar Cells ◽  
Organic Dye ◽  
Cell Performance ◽  
Dye Sensitized Solar Cell ◽  
Solar Cell Performance ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Three new D–π–A dyes containing different numbers of triphenylamine donor substitutions on a π-linker were synthesized for dye-sensitized solar cells.

Heterocyclic-Functionalized Organic Dyes for Dye-Sensitized Solar Cells: Tuning Solar Cell Performance by Structural Modification

2012 ◽  
Vol 65 (9) ◽  
pp. 1203 ◽  
Author(s):  
Qianqian Li ◽  
Zhongxing Jiang ◽  
Jingui Qin ◽  
Zhen Li
Keyword(s):  
Solar Cells ◽  
Molecular Design ◽  
Organic Dyes ◽  
Low Cost ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Solar Cell Performance ◽  
Dye Sensitized ◽  
The Relationship ◽  
Sensitized Solar Cells

Due to their high conversion efficiency and low cost of production, dye-sensitized solar cells based on organic dyes have attracted considerable attention. By utilizing various heterocycles as construction blocks for organic dyes, the performance of solar cells was optimized to exhibit good light-harvesting features and suppress interfacial recombinations. The aim of this review is to highlight recent progress in the molecular design of heterocyclic-functionalized organic dyes for efficient dye-sensitized solar cells, and special attention has been paid to the relationship between chemical structure and the photovoltaic performance of dye-sensitized solar cells based on these dyes.

scholarly journals Magnetron Sputtered Electron Blocking Layer as an Efficient Method to Improve Dye-Sensitized Solar Cell Performance

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2690
Author(s):  
Dariusz Augustowski ◽  
Paweł Kwaśnicki ◽  
Justyna Dziedzic ◽  
Jakub Rysz
Keyword(s):  
Solar Cell ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Short Circuit Current ◽  
Dye Sensitized Solar Cell ◽  
Blocking Layer ◽  
Electron Blocking Layer ◽  
Solar Cell Performance ◽  
Force Microscopy ◽  
Dye Sensitized

The main efficiency loss is caused by an intensive recombination process at the interface of fluorine-doped tin oxide (FTO) and electrolyte in dye-sensitized solar cells. Electrons from the photoanode can be injected back to the redox electrolyte and, thus, can reduce the short circuit current. To avoid this, the effect of the electron blocking layer (EBL) was studied. An additional thin film of magnetron sputtered TiO2 was deposited directly onto the FTO glass. The obtained EBL was characterized by atomic force microscopy, scanning electron microscopy, optical profilometry, energy dispersive spectroscopy, Raman spectroscopy and UV-VIS-NIR spectrophotometry. The results of the current–voltage characteristics showed that both the short circuit current (Isc) and fill factor (FF) increased. Compared to traditional dye-sensitized solar cell (DSSC) architecture, the power conversion efficiency (η) increased from 4.67% to 6.07% for samples with a 7 × 7 mm2 active area and from 2.62% to 3.06% for those with an area of 7 × 80 mm2.

TiO2/Dye/Electrolyte Interface Engineering by Atomic Layer Deposited Ultra Thin SiO2 for Improved Dye Sensitized Solar Cell Performance

2010 ◽  
Vol 1260 ◽  
Author(s):  
Mariyappan Shanmugam ◽  
Braden Bills ◽  
Mahdi Farrokh Baroughi
Keyword(s):  
Photoelectron Spectroscopy ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Surface States ◽  
Atomic Layer ◽  
Open Circuit ◽  
Solar Cell Performance ◽  
Dye Sensitized ◽  
Layer Deposition

AbstractThe short circuit density (JSC) and open circuit voltage (VOC) of dye sensitized solar cells (DSSCs) were improved from 9.8 to 17.8 mA/cm2 and 728 to 743 mV by depositing an ultra thin SiO2 layer on mesoporous TiO2 using Atomic Layer Deposition (ALD) method. X ray photoelectron spectroscopy confirmed the growth of SiO2 on mesoporous TiO2 surface. It was also observed that the enhancement in DSSC performance highly depends on the thickness of the ALD grown SiO2 layers on mesoporous TiO2. Compared to the reference DSSC which used untreated TiO2, incorporation of 5 ALD cycles (about 5 atomic layers) of SiO2 on mesoporous TiO2 resulted in 80 % enhancement (E) in the photoconversion efficiency from 4 to 7.2%. It is believed that the deposition of the ultra thin SiO2 film on mesoporous TiO2 modifies the density and activity of the surface states and an optimized layer thickness (5 cycles) leads to significant improvement in the DSSC performance. The enhanced photovoltaic performance was confirmed by dark and illuminated I-V and external quantum efficiency (EQE) measurements.

Fabrication and characterization of coil type transparent conductive oxide-less cylindrical dye-sensitized solar cells

RSC Advances ◽  
2014 ◽  
Vol 4 (44) ◽  
pp. 22959-22963 ◽  
Author(s):  
Gaurav Kapil ◽  
Jin Ohara ◽  
Yuhei Ogomi ◽  
Shyam S. Pandey ◽  
Tingli Ma ◽  
...  
Keyword(s):  
Solar Cell ◽  
Mass Production ◽  
Dye Sensitized Solar Cells ◽  
Transparent Conductive Oxide ◽  
Solar Cell Performance ◽  
Dye Sensitized ◽  
Conductive Oxide ◽  
Fabrication And Characterization ◽  
Sensitized Solar Cells

A novel coil based cylindrical architecture for TCO-less DSSC is reported. The steps of fabrication involved are relatively fast and easy for the mass production of DSSC. Advantages over the previous cylindrical architectures in many aspects are described. The effect of different metal wire characteristics on the solar cell performance is discussed in detail.

Estimate Dye Sensitized Solar Cells Performance Using Dyes Based on Green-Future and Local Wisdom with Simulation Method

2020 ◽  
Vol 981 ◽  
pp. 92-97
Author(s):  
Edy Supriyanto ◽  
Henry Ayu Kartikasari ◽  
Lutfi Rohman ◽  
Nova Alviati ◽  
Agus Geter Edy Sutjipto
Keyword(s):  
Renewable Energy ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Simulation Method ◽  
Solar Cell Performance ◽  
Dye Sensitized ◽  
The World ◽  
Myrica Nagi ◽  
Performance Results ◽  
Sensitized Solar Cells

One of the considerations for renewable energy that can be accepted by society is energy based on nature (green future) and environmentally friendly (local wisdom). Dye-sensitized solar cells give to the world, easily and simple implemented technology for future renewable energy. This research was conducted by simulating the performance of DSSC using dye based on green future and local wisdom. Dye is one of the most important components influencing solar cell performance because dye determines the photoresponse of the DSSC. Several dyes that used in this research included Vasica nees, W. fruticose L, U. dioical L, R. arborium, Myrica nagi, Curcuma angustifiola dan Berberies aristate. The reason for this choice of dye included it is easily found in Indonesia, does not cause environmental pollution, and is thought to have good prospects to be applied to DSSC. The best performance results produced by DSSC are using dye W.fruticose L with an efficiency of 1.6%, and the lowest performance are using dye R. arborium with an efficiency of 1 %.

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