qPlus型非接触原子力显微技术进展及前沿应用

刘梦溪,李世超,查泽奇,裘晓辉

Research Progress and Applications of qPlus Noncontact Atomic Force Microscopy

Meng-Xi LIU,Shi-Chao LI,Ze-Qi ZHA,Xiao-Hui QIU

图7 qPlus NC-AFM在表面化学反应中的应用

Fig 7 Applications of qPlus NC-AFM in on-surface chemical reactions (A) STM image of the reactant molecule of oligo-(phenylene-1, 2-ethynylenes) on Ag (100) before annealing; (B, C) STM images of individual products on Ag (100) after annealing at T > 90 ℃; (D-F) Constant-height NC-AFM images of the same molecule depicted in A-C57; (G) constant-height NC-AFM image of the two conformational isomers of precursor molecule oligo-(E)-1, 1′-bi (indenylidene); (H) constant-height NC-AFM image of an oligomer chain on Au (111); (I) schematic representation of chemical structure of the oligomer58; (J, K) constant-height NC-AFM images of 10, 11-diiodonaphtho[1, 2, 3, 4-g, h, i]perylene (DINP) and the aryne molecule after iodine dissociation of DINP; (L, M) the Laplace-filtered representations of individual aryne and the naphtho[1, 2, 3, 4-g, h, i]perylene (NP) molecules; (N, O) colour-coded C-C bond orders for Kekulé depictions of alkyne and cumulene59