1. School of Energy and Chemical Engineering Xiamen University Malaysia Sepang 43900 Malaysia
2. College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
3. Microelectronics Thrust Function Hub The Hong Kong University of Science and Technology (Guangzhou) Fok Ying Tung Research Institute S&T Building, Nansha IT Park, No.2, Huan Shi Da Dao Road, Nansha Distric Guangzhou City 511458 China
4. Center of Nanotechnology and Advanced Materials Faculty of Science and Engineering University of Nottingham Malaysia Campus Jalan Broga Semenyih Selangor 43500 Malaysia
5. Low Dimensional Materials Research Centre Department of Physics Faculty of Science University Malaya Kuala Lumpur 50603 Malaysia