1. Key Laboratory of Microelectronic Devices and Integrated Technology
2. Institute of Microelectronics
3. Chinese Academy of Sciences
4. Beijing 100029
5. China
6. Molecular Materials and Nanosystems and Institute for Complex Molecular Systems, Eindhoven University of Technology
7. P. O. Box 513
8. 5600 MB Eindhoven
9. The Netherlands
10. Dutch Institute For Fundamental Energy Research