Ballistic emission microscopy studies on metal–molecule interfaces

Abstract

Ballistic electron emission microscopy (BEEM) experiments on metal-molecule interfaces are briefly reviewed. Results of BEEM experiments with two different orientations of molecules are presented and discussed. Significant differences in uniformity of transport through the molecular layer are found. Implications for device applications are briefly discussed.

Going ballistic: a novel characterization for the electronic energy gap

“…Chandrasekhar designs ballistic electron emission microscopy (BEEM) to study the charge transport behavior of the Pt/trizigzag-HBC-Ph3 interface and Pt/trizigzag-HBC-Ph6 interface. 32 The BEEM set-up was prepared from the collector to the base, while a scan tunneling microscopy (STM) tip was suspended above the base, as shown in Fig. 2.…”

Transverse dispersion and interfacial dephasing effects on the shape and amplitude of the ballistic-electron-emission spectroscopy of nanographenes

“…This can be realized by laying the molecule across two fixed electrodes or employing a mobile electrode to approach the molecule lying on a substrate. The latter includes the scanning tunneling microscopy (STM) configuration [5][6][7] and ballistic-electron-emission microscopy (BEEM) [8][9][10], a three-terminal STM configuration as shown in figure 1. BEEM has been widely used in studying the electronic properties of inorganic semiconductors in contact with metals such as the Schottky barrier [11][12][13][14][15][16].…”