A cross-linked poly(methyl methacrylate) gate dielectric by ion-beam irradiation for organic thin-film transistors

Role of Cross-Linking Process on the Performance of PMMA

“…Yun Y et al [35] reported in their work that the physical crosslinking of the PMMA gate dielectric can be used efficiently to create thin-film transistors with extraordinary carrier flexibility and functioning at low voltages [35]. Table 4 summarizes the important as well as variable applications for PMMA cross-linked derivatives [9,13,32,[34][35][36][37][38][39][40][41][42].…”

“…Table 4 summarizes the important as well as variable applications for PMMA cross-linked derivatives [9,13,32,[34][35][36][37][38][39][40][41][42]. The present summary deals with critical points of view such are method of preparation, crosslinking agent, and advantages.…”

Electrical conductivity, dielectric properties and optical absorption of organic based nanocrystalline sodium copper chlorophyllin for photodiode application

“…where AC is the AC conductivity, ω is the angular frequency, DC is the ω → 0 limiting value of AC (ω), A is the proportionality constant and s is the index which is characteristic of the type of conduction mechanism/relaxation mechanism dominant in amorphous materials [9,27]. The variation of exponent s with temperature gives information about the conduction mechanism involved.…”

“…The physical and chemical properties of these material layers depend not only on the molecular structure but also on the structure of the solid thin film [8,9]. One of the highly stable and water soluble derivatives of chlorophyll is the sodium copper chlorophyllin (SCC) which are formed by replacing the central magnesium atom by copper atom and then saponified by dissolving in ethanol containing NaOH.…”

Influence of SHI upon nanohole free volume and micro scale level surface modifications of polyethyleneterephthalate polymer films

“…Radiation induced cross-linking of polymers have wide range of applications on the commercial levels such as cross-linked cables, wires, rubber tires, development of cross-linked silicon carbide fibres, polymer recycling and development of gamma compatible hydrogels [23]. The physical cross-linking of the polymethyl methacrylate (PMMA) polymer as a 'gate dielectric' can be used to produce thin film transistors with high carrier mobility, which can be operated at low voltages [24]. The surface morphology of the polymer can be changed by ion treatment.…”