The influence of gold nanoparticles on the two photon absorption of photochromic molecular systems

Abstract

In this study, we investigate the influence of gold nanoparticles on the nonlinear optical properties of the dihydroazulene/vinylheptafulvene photo- and thermochromic system.

Perturbation of the UV transitions of formaldehyde by TiO2photocatalysts and Aunnanoclusters

“…[54][55][56][57][58][59] The electronic polarizabilities of the nanoparticles ensure that the excited states of formaldehyde are interacting with the appropriate polarization of the nanoparticle as demonstrated previously. [54][55][56][57][58][59] The TiO 2 NP is modelled using the rutile structure of TiO 2 . The lattice parameters of the unit cell are a = b = 4.594 Å and c = 2.959 Å and the most commonly occurring (110) surface has been utilized.…”

“…Previously, we have successfully used this approach when investigating organic photochromic molecules interacting with metallic nanoparticles. 54–59 The electronic polarizabilities of the nanoparticles ensure that the excited states of formaldehyde are interacting with the appropriate polarization of the nanoparticle as demonstrated previously. 54–59…”

“…54–59 The electronic polarizabilities of the nanoparticles ensure that the excited states of formaldehyde are interacting with the appropriate polarization of the nanoparticle as demonstrated previously. 54–59…”

Optimization of the thermochemical properties of the norbornadiene/quadricyclane photochromic couple for solar energy storage using nanoparticles

“…18 Furthermore, we found that the NPs can enhance both one and two photon absorption of these systems while also providing significant redshifts in the absorption and clear alterations in the electric properties. [19][20][21] Hence, the coupling of such NPs to the NBD/QC system could be used as catalyst for the thermal back reaction while also possible tuning optical properties for solar energy storage.…”