Single-sized N-functionality graphene quantum dot in tunable dual-modality near infrared–I/II illumination detection and photodynamic therapy under multiphoton nonlinear excitation

Wen‐Shuo Kuo, Chia-Yuan Chang, Chia-Yuan Chang, Hao-Yu Chuang, Po‐Lan Su, Jiu‐Yao Wang, Ping‐Ching Wu, Hui-Fang Kao, Shih-Wen Tseng, Sheng-Han Lin, Yen‐Sung Lin, Chan‐Chi Chang, Chan‐Chi Chang