Qi Qi, Hai-Feng Chen, Zi-fan Hong, Ying-Ying Liu, Li-Xin Guo, Li-Jun Li, Qin Lu, Yi-Fan Jia. Preparation and characteristics of ultra-wide Ga2O3 nanoribbons up to millimeter-long level without catalyst [J]. Acta Physica Sinica, 2020, 69(16): 168101-1