1. Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 P. R. China
2. Beijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences CAS Key Laboratory of Molecular Nanostructure and Nanotechnology Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
3. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) 115409 Moscow Russian Federation