In this paper, a theoretical model is used to investigate and evaluate the electronic transfer rate by using Au metal contact with 2,9-Dimethyl-4,7-diphenyl-1,10-phenanthroline, known as BCP. Electron transfer process is a necessary in variety electronic devices. The electron transfer rate investigates and calculates for Au/BCP interface due to transition energy, Fermi energy, ionization energy and strength coupling to calculate results in a wide solvent media. In this work, the Au metal is used a donor state with BCP molecule as acceptor to study the electron transfer process with changing thirteen solvents media. The results show that electron transfer parameters of the Au/BCP system have been strong dependent on transition energy. It's given acceptable rate in room temperature with barrier ranging 1.169, 1.091, 1.081, 1.086 and 1.064 eV for Diethyl ether, Ethyl, Tetrahydrofuran (THF), Acetic acid and 1,2-Dimethoxyethane as result to have low transition energy compare with 0.946, 0.940, 0.967, 0.951, 0.970 and 0.977 eV for Methanol, Water, Acetone, Ethanol, Acetonitrile and 2,2,2-Trifluoroethanol because have large transition energy.The Au/BCP device has large electron transfer rate with water and Methanol in range 19.328 × 10-9 to 15.205 × 10-9 (cm4/ sec) compare with low electron transfer rate with Diethyl and Ethyl acetate in range 0.006 × 10-9 to 0.091 × 10-9 (cm4/ sec). Moreover, the devices that are employing Au in contact with BCP show higher electronic transfer rate with less polarity solvent.

This investigation presents a quantum model for electron transfer allows us to calculate the flow electronic transfer rate through metal/molecule devices. The flow electronic transfer rate at interfaces between Au metal contact with poly(9,9’-dioctylfluorene-co-bis-N, N’-(4-butylphenyl)-diphenylamine) (TFB) and solvents media with polarity is ranging from 0.315 for Diethyl ether to 0.5361 for Methanol is investigated via quantum theory of donor acceptor model. The flow rate are large with Au energy level alignment with TFB levels has been found when the potential barrier at interface is 0.066 eV with Diethyl ether solvents. Flow electronic transfer rate for Au/TFB system with methanol solvent decreased cross interface when the potential barrier is as large as 0.122 eV. This lead to produce accumulate the charges on the both side of Au and TFB when the potential at interface is large. The resulting slow transfer of electrons cross interface. Furthermore, Au metal contact on TFB molecule interface frequently with different solvents media and have large flow rate with Diethylether solvents and low flow rate with Methanol.

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In sense of the phenomena of mirror effects, the behavior of electrons inside the chamber of scanning electron microscope (SEM) investigated. Indeed, a simplified geometrical explanation for the behavior of incident electrons introduced. The presented description is mainly concerns with simple trigonometric functions. However, the synthesis of these functions provide a tool which can be used to trace electron as it leaves the column diaphragm until it reaches the detectors. Accordingly, the position of landing electrons throughout its travel being determinable in terms of the sample potential the operation variables. Results have shown that introduced approach could commendably use to simulate behavior of electrons inside the chamber of SEM.