Photomemory effects in electrical and optical properties of photochromic dye in the non-crystalline solid state

Distinguishing Different Isomers of the Photochromic CMTE Molecule on the Si(100) Surface Studied by STM

“…We believe that the closed form interacts preferentially with the surface through its extended conjugated π-system, because we observe a single peak in Figures 5b, 3d and 3e. This could correspond to the HOMO of the molecule, given that the STM images were taken with a sample voltage of -2 V. 15 Nevertheless, the closed form cannot lie completely flat on the surface because of the presence of an out-of-plane methyl group on one side, although they do not have the same steric influence as in the open form. The formation of silicon-sulfur bonds could occur as described in the next paragraph.…”

A dual-mode visual detector for toxic hydrazine

“…3). 64,65 On the other hand, ring-closed isomer 1c has pelectrons delocalized over the entire molecular backbone and is only weakly emissive. 66,67 Treating DMSO solutions of either isomer with hydrazine monohydrate results in a substantial increase in emission (Fig.…”

Control of optical properties through photochromism: a promising approach to photonics

“…The design of an effective light-triggered fluorescence switch is not trivial, and a zoology of diarylethene molecules [35,[134][135][136][137][138][139][140][141][142][143][144][145] and polymers [35,36,[146][147][148] have been reported so far. The main issue deals with the enhancement of the quantum yield of fluorescence of the emissive state, but maintaining overall good photochromism.…”