Do particles interact electronically?-proof of interparticle charge-transfer excitation between adjoined anatase and rutile particles

Abstract

Here, we report experimental evidence of interparticle spatial overlapping of orbitals to result in interparticle chargetransfer excitation (ICTE) at an anatase-rutile interface which is expected to be applicable to clarify the relative band position of metal-oxides and mixture homogeneity of mixture samples measured by reversed double-beam photoacoustic spectroscopy.