The coefficient of charge transfer at heterogeneous devices of Au metal with a well-known α-NPD dye is investigations using quantum model. Four different solvent are used to estimation the effective transition energy. The potential barrier at interface of Au and α-NPD dye has been determined using effective transition energy and difference between the Fermi energy of Au metal and ionization energy of dye. A possible transfer mechanism cross the potential barrier α-NPD dye and coupling strength interaction between the electronic levels in systems of Au and is discussed. Differentdata of effective transition energy and potential barrier calculations suggest that solvent is more suitable to binds Au with α-NPD dye.

Charge Flow, AuMetal, α-NPD Molecule Dye.