School of Electronics and Information Northwestern Polytechnical University Xi'an 710072 Shaanxi China;
Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province Shantou University Shantou 515063 Guangdong China;
Organtec Ltd Changping Sci&Tech Park Changping District Beijing 102200 China;
School of Materials Science and Engineering Shaanxi Normal University Xi'an 710119 Shaanxi China;
School of Microelectronics Northwestern Polytechnical University Xi'an 710072 Shaanxi China;