Contact enhances signal
Raman signal is enhanced via ground-state charge transfer upon tip-molecule point contact.
Yang, Ben · Gong, Chen · Ghafoor, Atif · Zhang, Fan · Zhang, Biao · Li, Hang · Ding, Xiao · Wang, Pu · Zhang, Yang · Zhang, Yao · Dong, Chao
Angewandte Chemie - International Edition 2023
Dramatic enhancement of TERS signal upon tip-molecule point contact
Strong quenching of TERS signal for ZnPc chemisorbed flatly on substrates