1. Key
Laboratory of Functional Molecular Solids, Ministry of Education,
College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
2. Center
for Molecular Imaging and Nuclear Medicine, School for Radiological
and Interdisciplinary Sciences (RAD-X), Soochow University, Collaborative Innovation Center of Radiation, Medicine of Jiangsu Higher Education Institutions, Suzhou 215123, China
3. School
of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore