scholarly journals Fabrication of electrospun BaTiO3/chitosan/PVA nanofibers and application for dye-sensitized solar cells

2021 ◽  
Vol 947 (1) ◽  
pp. 012017
Author(s):  
Dan-Thuy Van-Pham ◽  
Vien Vinh Phat ◽  
Nguyen Thi Quynh Hoa ◽  
Nguyen Hong Ngoc ◽  
Duong Thi Thao Ngan ◽  
...  

Abstract Perovskite BaTiO3 nanoparticles were synthesized by a hydrothermal method. BaTiO3/chitosan (CS)/Polyvinyl alcohol (PVA) nanofibers with an average diameter of 265.3 ± 52 nm were fabricated via an electrospinning method. The nanofibers were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transformation infrared spectroscopy (FTIR), and thermal analysis method (TGA). The photoanodes of dye-sensitized solar cells (DSSC) were fabricated based on the BaTiO3/CS/PVA nanofibers. The photovoltaic properties of the cells were calculated based on the current density – voltage curves. The maximum power conversion efficiency of DSSC with CS/PVA/BaTiO3 nanofibers was 0.49% with the natural dye sensitizer extracted from the leaf of the magenta plant.

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Zeng Chen ◽  
Shengjun Li ◽  
Weifeng Zhang

Bismuth titanate (Bi4Ti3O12) particles were synthesized by hydrothermal treatment and nanoporous thin films were prepared on conducting glass substrates. The structures and morphologies of the samples were examined with X-ray diffraction and scanning electron microscope (SEM). Significant absorbance spectra emerged in visible region which indicated the efficient sensitization of Bi4Ti3O12with N3 dye. Surface photovoltaic properties of the samples were investigated by surface photovoltage. The results further indicate that N3 can extend the photovoltaic response range of Bi4Ti3O12nanoparticles to the visible region, which shows potential application in dye-sensitized solar cell. As a working electrode in dye-sensitized solar cells (DSSCs), the overall efficiency reached 0.48% after TiO2modification.


2012 ◽  
Vol 7 (1) ◽  
Author(s):  
Ming-Cheng Kao ◽  
Hone-Zern Chen ◽  
San-Lin Young ◽  
Chen-Cheng Lin ◽  
Chung-Yuan Kung

2009 ◽  
Vol 15 (6) ◽  
pp. 1403-1412 ◽  
Author(s):  
Cheng-Wei Lee ◽  
Hsueh-Pei Lu ◽  
Chi-Ming Lan ◽  
Yi-Lin Huang ◽  
You-Ren Liang ◽  
...  

Langmuir ◽  
2012 ◽  
Vol 28 (28) ◽  
pp. 10620-10626 ◽  
Author(s):  
Yong Joo Kim ◽  
Kyeong Ha Kim ◽  
Paul Kang ◽  
Hark Jin Kim ◽  
Young Sik Choi ◽  
...  

2015 ◽  
Vol 1131 ◽  
pp. 215-220
Author(s):  
Emmanuel Nyambod Timah ◽  
Buagun Samran ◽  
Udom Tipparach

TiO2nanotubes were successfully synthesized by anodization method of Ti foils. The electrolyte was composed of ethylene glycol (EG), ammonium fluoride (0.3%wt NH4F) and de-ionized water (2% vol H2O). A constant DC power supply of 50 V was used during anodization with anodizing times of 1 hour, 2 hours, 4 hours and 6 hours. The samples were annealed at 450 °C for 2 hours. The TiO2nanotubes were studied by X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). Structural analysis revealed the presence of pure Ti, and the crystalline anatase phase due to transformation of amorphous TiO2after annealing. The morphology of TiO2nanotube sizes showed an increase in tube diameter with anodizing time from approximately 50 nm to 200 nm. However, the efficiency of dye-sensitized solar cells increased with anodizing times up to a maximum of 5.74 % for anodizing time of 4 hours.


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