The role of NaF post-deposition treatment on the photovoltaic characteristics of semitransparent ultrathin Cu(In,Ga)Se2 solar cells prepared on indium-tin-oxide back contacts: a comparative study

2019 ◽  
Vol 7 (38) ◽  
pp. 21843-21853 ◽  
Author(s):  
Muhammad Saifullah ◽  
Dongryeol Kim ◽  
Jun-Sik Cho ◽  
Seungkyu Ahn ◽  
SeJin Ahn ◽  
...  
Keyword(s):  
Solar Cells ◽  
Comparative Study ◽  
Conversion Efficiency ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Photovoltaic Conversion ◽  
Photovoltaic Conversion Efficiency ◽  
Photovoltaic Characteristics ◽  
Post Deposition

NaF post-deposition treatment considerably enhanced the photovoltaic conversion efficiency of <500 nm thick Cu(In, Ga)Se2 absorber-based solar cells.

Large Pore Nanocrystalline TiO2 Films for Quasi-Solid State Dye-Sensitized Solar Cells

2013 ◽  
Vol 662 ◽  
pp. 177-181
Author(s):  
Jian Gao ◽  
Hao Ran Li ◽  
Hua Rong ◽  
Yu Hua Dai
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Photovoltaic Conversion ◽  
Photovoltaic Conversion Efficiency ◽  
Large Pore ◽  
Vis Spectroscopy ◽  
Sensitized Solar Cells

Photoelectrodes of mixed polymethylmethacrylate (PMMA) and TiO2paste with different ratios were fabricated and studied for improved photovoltaic conversion efficiency in quasi-solid state dye-sensitized solar cells(QS-DSCs). The large pore nanocrystalline TiO2films were prepared by the doctor blade method and charicterized by SEM and UV-Vis spectroscopy. SEM images show that large pores have been formed in the TiO2films. The transmittance of the films increased with an increase amount of PMMA, while the light-absorption decreased when the films covered by dyes. I-V curves show that a relatively high photovoltaic conversion efficiency of 2.1%~2.26% was achieved when the PMMA/ TiO2paste weight ratio was in the range of 1:25~1:35 under AM 1.5 illumination at 100mW/cm2.

scholarly journals Material analysis and characterization of working electrodes of dye-sensitized solar cells

2018 ◽  
Vol 185 ◽  
pp. 00037
Author(s):  
Yeong-Lin Lai ◽  
Hung-Ru Hsu ◽  
Yeong-Kang Lai ◽  
Yung-Hua Chou ◽  
Nai-Kun Hsu ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Tin Oxide ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Material Analysis ◽  
Photovoltaic Conversion Efficiency ◽  
Photovoltaic Characteristics ◽  
Sensitized Solar Cells

The aim of this paper is to demonstrate the influence of the TiO2 with different sintered time regarding the performance of photovoltaic characteristics of DSSCs. A layer of TiO2 with a thickness of ~8-10 μm and an area of 0.25 cm2 was prepared by depositing TiO2 nanoparticles paste onto a fluorine-doped tin oxide (FTO) sbustrate by doctor blade technique, followed by sinterring at 450°C with 4 differennt sintering times: 10 min, 20 min, 30 min, and 40 min. The Pt solution was dripped on FTO substrate works as counter electrode. SEM, XRD and I-V curve were conducted for the material analysis. The photovoltaic characteristics were measured under AM 1.5 sunlight simulator. The results reveal that the different sintered time of TiO2 working electrode did affect the photovoltaic conversion efficiency. In conclusion, TiO2 sintered for 30 min yields the highest power conversion efficiency of 6.273%.

Photovoltaic properties of CdS/phthalocyanine heterojunction cells

1983 ◽  
Vol 61 (5) ◽  
pp. 901-905 ◽  
Author(s):  
A.M. Hor ◽  
R. O. Loutfy
Keyword(s):  
Solar Cells ◽  
Cadmium Sulfide ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Optimum Thickness ◽  
Vacuum Deposition ◽  
Photovoltaic Properties ◽  
Heterojunction Solar Cells ◽  
P Type ◽  
Photovoltaic Characteristics

Photovoltaic heterojunction solar cells formed between n-type cadmium sulfide, CdS, and various p-type phthaloeyanines (Pc) such as H2Pc, ZnPc, MgPc, CuPc, MnPc, PbPc, and VOPc were investigated. The cells were prepared by electrodepositing thin CdS films onto conducting indium-tin oxide (ITO) followed by sequential vacuum deposition of the phthaloeyanines and gold layers. Among the seven phthaloeyanines studied, ZnPc and MgPc exhibited the highest photovoltaic activity. Some optimization work was done for both the ZnPc and MgPc heterojunction devices. The optimum thickness of CdS and phthaloeyanines was found to be 500 and 850 Å, respectively. Under an illumination of 50 mW cm−2, the photovoltaic characteristics of the ITO/CdS/ZnPc/Au cell were: Voc = 0.54 volts, Jsc = 285 μA cm−2, and η = 0.10%, while the ITO/CdS/MgPc/Au cell delivered Voc = 0.46 volts, Jsc = 231 μA cm−2, and η = 0.066%.

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