Do Particles Interact Electronically? —Proof of Interparticle Charge-transfer Excitation between Adjoined Anatase and Rutile Particles

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