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Updated: Aug 11, 2026

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
Published on: January 19, 2018
Charge-transfer effect at the interface of phthalocyanine-electrode contact studied by scanning tunneling
Sheng-Bin Lei1, Ke Deng, De-Liang Yang
1Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080, PRC.
Abstract:
Scanning tunneling microscopy (STM) and spectroscopy (STS) are used in this work to investigate the charge-transfer effect at the molecule-substrate interface of substituted metal phthalocyanines. STS results revealed that the apparent energy gaps for both fluorinated phthalocyanines and unsubstituted phthalocyanines are essentially the same, which agree with the hybrid density functional calculations. More interestingly, there is a systematic shift of the energy level of valence bands, possibly as the result of charge-transfer effect at the molecule-substrate interface.
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