Hyun-Suk Kim, Kyung-Bae Park, Kyoung Seok Son, Joon Seok Park, Wan-Joo Maeng, Tae Sang Kim, Kwang-Hee Lee, Eok Su Kim, Jiyoul Lee, Joonki Suh, Jong-Baek Seon, Myoung Kwan Ryu, Sang Yoon Lee, Kimoon Lee, and Seongil Im, “The influence of sputtering power and O2/Ar flow ratio on the performance and stability of Hf-In-Zn-O thin film transistors under illumination”, Applied Physics Letters, vol. 97, 102103 (2010).,