Covalent modification of graphene oxide (GO) with functional chromophores plays an
important role in constructing various kinds of advanced optoelectronic materials for …

Functional materials displaying large ultrafast third-order optical nonlinearities across a wide
spectral region and broad temporal domain are required for all-optical signal processing …

Both metalloporphyrins and heterometallic {Cr7Ni} rings are of significant research interest
due to their proposed roles in quantum information processing devices. In this study, we …

We report an observed transition from a saturable absorption type of behaviour to a reverse
saturable absorption one for solid films of a guest–host system constituted by an organic …

The changing of the electronic and vibronic states due to the insertion of Zn (II), Cu (II), Ni (II)
or Co (II) ions in the meso-tetrakis (4-pyridyl) porphyrin ring center is investigated. The …

The present work employs a set of complementary techniques to investigate the influence of
outlying Ru (II) groups on the ground-and excited-state photophysical properties of free …

This work employs the Z-scan technique with 120 fs pulses to investigate the singlet excited
state absorption spectra of tetrapyridyl and tetrasulfonatophenyl porphyrins. We have used a …

The study of excited state properties of chlorophyll a is a subject of foremost interest, given
that it plays important roles in biological process and has also been proposed for …

The photosensitized semiconductor catalysts–TiO2 nanotubes–were modified by
functionalized supramolecular sensitizers: zinc (II)/copper (II)/cobalt (II) porphyrin-ruthenium …

Functional organic–inorganic nanocomposite materials displaying large optical
nonlinearities are eagerly required for many advanced optoelectronic applications, such as …