Naphthalocyanine Thin Films and Field Effect Transistors

Organic Thin Film Field-effect Transistors (otfts) Are Organic Thin Film Transistors

particularly interesting as their fabrication processes are much less complex compared with conventional Si technology, which involves high-temperature and high-vacuum deposition processes and sophisticated photolithographic patterning methods. In general, low-temperature deposition and solution processing can replace the more complicated processes involved in conventional Si technology. In add...

Highly doped thin-channel GaN-metal–semiconductor field-effect transistors

We report on the influence of the channel doping on dc, high frequency, and noise performance of GaN metal–semiconductor field-effect transistors ~MESFETs! grown on sapphire substrates. The devices with the channel thicknesses from 50 to 70 nm and doping levels up to 1.5310 cm were investigated. An increase in the channel doping results in the improved dc characteristics, higher cutoff, and max...

Thickness-dependent mobility in tetracene thin-film field-effect-transistors

Field-Effect Mobility of Organic Polymer Thin-Film Transistors

We present a method of extracting the field-effect mobility from the transfer characteristics of organic polymer thin-film transistors (OP-TFTs), in both the linear and saturation regimes, by accounting for the dependence of the mobility on the gate bias, which translates to a dependence on the accumulated density of majority charge carriers in the channel. This method is compared to the common...

Field-effect mobility of polycrystalline tetrabenzoporphyrin thin-film transistors

A possible relation between a thin-film microstructure and an organic thin-film field-effect transistor OFET behavior is discussed in terms of nonlinearity in the extraction of the device electrical parameters. Staggered source and drain electrode OFETs were fabricated using a soluble precursor form of the organic small molecule semiconductor tetrabenzoporphyrin, and characterized using linear ...