Application of TiO2 with different structures in solar cells |
| |
| Authors: | Zhang Tian-Hui ab Piao Ling-Yu a Zhao Su-Ling b Xu Zheng b Wu Qian b and Kong Chao |
| |
| Affiliation: | b) a) National Center for Nanoscience and Technology,Beijing 100190,China a) Key Laboratory of Luminescence and Optical Information of the Ministry of Education Institute of Optoelectronics Technology,Beijing Jiaotong University,Beijing 100044,China |
| |
| Abstract: | The application of TiO2-based devices is mainly dependent on their crystalline structure,morphology,size,and exposed facets.Two kinds of TiO2 with different structures,namely TiO2 pompons and TiO2 nanotubes,have been prepared by the hydrothermal method.TiO2 with different structures is characterized by scanning electron microscopy(SEM),X-ray diffraction(XRD),and Brunauer-Emmett-Teller(BET) surface area analysis.Solar cells based on poly(3-hexylthiophene)(P3HT) and TiO2 with different structures are fabricated.In the device ITO/TiO2/P3HT/Au,the P3HT is designed to act as the electron donor,and TiO2 pompons and TiO2 nanotubes act as the electron acceptor.The effects of the TiO2 structure on the performance of hybrid heterojunction solar cells are investigated.The device with TiO2 pompons has an open circuit voltage(Voc) of 0.51 V,a short circuit current(Jsc) of 0.21 mA/cm2,and a fill factor(FF) of 28.3%.Another device with TiO2 nanotubes has a V oc of 0.5 V,J sc of 0.27mA/cm2,and FF of 28.4%.The results indicate that the TiO2 nanotubes with a unidimensional structure have better carrier transport and light absorption properties than TiO 2 pompons.Consequently,the solar cell based on TiO2 nanotubes has a better performance. |
| |
| Keywords: | TiO2 pompons TiO2 nanotubes heterojunction solar cell |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
