1. Department of Materials Science and Engineering National Tsing Hua University Hsinchu 30013 Taiwan, Republic of China
2. Birla Institute of Technology & Science‐Pilani Shamirpet‐Keesara Road, Jawahar Nagar, Shameerpet Hyderabad Telangana 500078 India
3. Department of Solid State Lighting Technology Mechanical and Mechatronics Systems Research Labs. Industrial Technology and Research Institute Hsinchu 31057 Taiwan, Republic of China