Heterosupramolecular optical write–read–erase device

Nanocrystalline Titania Films and Particles by Chemical Vapor Synthesis

“…This can be attributed to complete precursor decomposition, and is usually the case for the diffusion-limited regime in the CVD process where maximum growth rates are achieved. [6] At 900 C, the growth rate for low d r is at the same level as at 700 C, due to complete precursor decomposition. With increasing d r , a decrease in growth rate is observed, which is attributed to particles formed in the gas phase, which are, for the most part, not incorporated in the film (as indicated by HR-SEM).…”

“…[3] Nanocrystalline pure anatase is used as the electrode material in rechargeable lithium ion batteries, where the high specific surface area enables an enhanced storage capacity, [4,5] or in heterosupramolecular optical read-write devices. [6] That CVD is a common process for synthesizing functional films is shown in the literature. [7±9] Titania [10,11] and titania-based films [12] have been prepared by the reaction of titanium tetraisopropoxide (TTIP), but usually do not form uniform crystallites in the nanometer-size regime (except when film thicknesses are in this range).…”

“…[14] However, if uncontrolled, this growth regime is undesirable because the particles adversely affect the film quality. [6,15] The mechanisms of CVD growth are generally complex. In some cases, small molecular clusters, as well as small molecules, have been identified as growth species.…”

Control of Noise in Chemical and Biochemical Information Processing

“…Digital logic functions of several-gate device components [128][129][130][131][132][133][134] have been realized, such as keypad lock and memory units. [85,[135][136][137][138][139][140][141][142][143][144][145] Chemical-computing systems can function at the single-molecule [146] nano-scale devices, [147] as well as perform parallel computations by numerous molecules. [148] Chemical computing shows great promise, [149][150][151] though, as most unconventional computing approaches, [152] it is not being developed as an alternative to the speed and versatility of Si-computers.…”

Hybrid Organic-Inorganic Materials Based on Organophosphorus Derivatives

“…In the separation domain, OPCA have been used to modify inorganic membranes [120,141,194,195] or supports for chromatography [120,[196][197][198]. Several recent works have been devoted to the bonding of transition metal complexes (e.g., ruthenium(II) polypyridine) to nanocrystalline TiO 2 using phosphonic acid anchors for the elaboration of photovoltaic [119,122,123,138,199] and optical devices [200][201][202]. There are very few examples of OPCA based hybrid materials in heterogeneous catalysis, although OPCA allow to bind organometallic catalysts [145,203,204] and enzymes [197,205] to a large variety of supports other than SiO 2 .…”