1. Michael Grätzel Center for Mesoscopic Solar Cells
2. Wuhan National Laboratory for Optoelectronics
3. Huazhong University of Science and Technology
4. Wuhan
5. P. R. China
6. Laboratoire de Photonique et Interfaces
7. Institut des Sciences et Ingenierie Chimique
8. Ecole Polytechnique Federale de Lausanne
9. CH-1015 Lausanne
10. Switzerland