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| Content Provider | Springer Nature Link |
|---|---|
| Author | Wang, Jingyang Zhang, Tianjin Wang, Qingqing Wang, Duofa Pan, Ruikun Xia, Hanming |
| Copyright Year | 2012 |
| Abstract | CdSe/CdS semiconductor quantum dots co-sensitized TiO$_{2}$ nanorod array was fabricated on the transparent conductive fluorine-doped tin oxide (FTO) substrate using the hydrothermal and successive ionic layer adsorption and reaction (SILAR) process. The structural and morphological properties of the samples were characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM). The results indicate that CdSe/CdS QDs are uniformly coated on the surface of the TiO$_{2}$ nanorods. The shift of light absorption edge was monitored by taking UV-visible absorption spectra. Compared with the absorption spectra of the TiO$_{2}$ nanorod array, deposition of CdSe/CdS QDs shifts the absorption edge to the higher wavelength. The enhanced light absorption in the visible-light region of CdSe/CdS/TiO$_{2}$ nanorod array indicates that CdSe/CdS layers can act as co-sensitizers in quantum dots sensitized solar cells (QDSSCs). By optimizing the CdSe layer deposition cycles, a photocurrent of 5.78 mA/cm$^{2}$, an open circuit photovoltage of 0.469 V and a conversion efficiency of 1.34 % were obtained under an illumination of 100 mw/cm$^{2}$. |
| Starting Page | 876 |
| Ending Page | 880 |
| Page Count | 5 |
| File Format | |
| ISSN | 10002413 |
| Journal | Journal of Wuhan University of Technology-Mater. Sci. Ed. |
| Volume Number | 27 |
| Issue Number | 5 |
| e-ISSN | 19930437 |
| Language | English |
| Publisher | Wuhan University of Technology |
| Publisher Date | 2012-10-31 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | quantum dots TiO$_{2}$ nanorod array solar cells photovoltaic performance Materials Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Materials Science |
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