Bulletin of the Korean chemical society | |
Light Scattering Amplification on Dye Sensitized Solar Cells Assembled by Hollyhock-shaped CdS-TiO2 Composites | |
Misook Kang1  Myeong-Heon Um1  Huryul Lee1  Gayoung Lee1  | |
关键词: Dye-sensitized solar cells; CdS-TiO2; Scattering layer; Incident photon-to-current conversion efficiency; Electrochemical impedance spectroscopy; | |
DOI : | |
学科分类:化学(综合) | |
来源: Korean Chemical Society | |
【 摘 要 】
To investigate the scattering layer effect of a TiO2 multilayer in dye-sensitized solar cells (DSSCs), we designed a new DSSC system, assembled with a CdS-TiO2 scattering layer electrode. A high-magnification SEM image exhibited hollyhock-like particles with a width of 1.5-2.0 μm that were aggregated into 10-nm clumps in a hexagonal petal shape. The efficiency was higher in the DSSC assembled with a CdS-TiO2 scattering layer than in the DSSC assembled with TiO2-only layers, due to the decreased resistance in electrochemical impedance spectroscopy (EIS). The short-circuit current density (Jsc) was increased by approximately 7.26% and the open-circuit voltage (Voc) by 2.44% over the 1.0 wt % CdS-TiO2 composite scattering layer and the incident photon-to-current conversion efficiency (IPCE) in the maximum peak was also enhanced by about 5.0%, compared to the DSSC assembled without the CdS-TiO2 scattering layer.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912010244047ZK.pdf | 2155KB | download |