Yu-Feng YaoHuang-Hui LinShaobo YangKeng-Ping ChouHao-Tsung ChenChia-Ying SuCharng-Gan TuChun-Han LinC. C. YangCHIH-CHUNG YANG2019-10-312019-10-312017https://scholars.lib.ntu.edu.tw/handle/123456789/429711Polarities of Ga-doped ZnO Nanoneedles on Various Substratesconference paper