Enhancing Light Emission of ZnO‐Nanofilm/Si‐Micropillar Heterostructure Arrays by Piezo‐Phototronic Effect

X. Li, S. Cheng, Prof. J. Zhu Center for Nano and Micro Mechanics Tsinghua University Beijing 100084 , China R. Yu, Prof. Z. L. Wang School of Materials Science and Engineering Georgia Institute of Technology Atlanta , GA 30332-0245 , USA Prof. R. Liang Institute of Microelectronics Tsinghua University Beijing 100084 , China Prof. Q. Zhang, Prof. A. Pan Key Laboratory for Micro-Nano Physics and Technology of Hunan Province Hunan University Changsha , Hunan 410082 , China Enhancing Light Emission of ZnO-Nanofi lm/Si-Micropillar Heterostructure Arrays by Piezo-Phototronic Effect