Jeanne L. McHale

TL;DR: In this article, the room-temperature photoluminescence spectra of nanocrystalline TiO2 in the anatase and rutile phases and in mixed-phase samples obtained commercially (Degussa P25) and by thermal treatment of anatase were reported.

TL;DR: In this article, a dye-sensitized solar cell based on natural betalain pigments from red beet roots is described, where a photoanode was fabricated from nanocrystalline TiO 2 on transparent conductive glass, treated with ethanolic HCl solution, then sensitized with raw beet extract or a betanin solution from which yellow betaxanthin pigments were removed by column chromatography.

TL;DR: The defect photoluminescence from TiO2 nanoparticles in the anatase phase is reported for nanosheets which expose predominantly (001) surfaces and compared to that from conventional anatase nanoparticles which expose mostly (101) surfaces as discussed by the authors.

TL;DR: In this paper, the authors present visible absorption, light-scattering, and resonance Raman spectra of TCPP diacid in its monomer, dimer, and aggregated forms and attempt to understand the structural basis for TCPP aggregation.

TL;DR: The results suggest that TiCl4 treatment of mixed-phase TiO2 may result in a surface layer of rutile and that radiative recombination of electron-hole pairs formed in the bulk anatase region of nanocrystallites occurs after electrons migrate to newly formed rutiles surfaces.