1. Department of Materials and Optoelectronic Science, National Sun Yat-sen University, 80424, No. 70, Lien-Hai Road, Kaohsiung, Taiwan, R.O.C.
2. Center for Crystal Research, National Sun Yat-sen University, 70 Lien-Hai Road, Kaohsiung 80424, Taiwan, R.O.C.
3. Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, 1650 boulevard Lionel-Boulet, Varennes QC J3X1S2, Canada