Temperature dependence of the electrical properties of organic thin-film transistors based on tetraphenyldibenzoperiflanthene deposited at different substrate temperatures: Experiment and modeling

Illumination and dipole layer effects on the density of state distribution in n-type organic thin film phototransistors based on naphthalene bis-benzimidazole: Experiment and modeling

“…So far, several precious works were performed on the OTFTs modeling [26][27][28][29][30][31][32][33].…”

“…At high constant drain voltage V D = 80V, the slope of the square root of versus V G is used to extract the mobility according to the following equation [26][27][28]:…”

Static and dynamic modeling of organic thin film transistors: effect of channel length on the Mayer–Neldel rule energy and quasistatic capacitances

“…In the context of device performance, it can be visualized that the contact resistance plays a key role on the scaling of OFETs and can limit the performance of logic circuits. Therefore, it is interesting to estimate the contact resistance of the fabricated devices using the transmission line method (TLM) [31]. According to TLM, the total resistance (R T ) of the transistor under the linear regime is equal to the series combination of parasitic contact resistance (R c ) and…”

“…Charge transport properties in OTFTs are influenced by the morphology of the semiconductor film and by the charge trapping, which is the principal origin of contact resistance [27][28][29][30]. Several models are developed in order to explain the charge transport phenomena in organic thin films [31][32][33][34][35]. One of the most used models is the variable range hopping (VRH) proposed by Vissenberg and Matters [33], which assumes that the charge transport is thermally activated and it is governed by the hopping of carriers between localized states.…”

Characterization and modeling of organic thin-film transistors based π-conjugated small molecule tetraphenyldibenzoperiflanthene: Effects of channel length

“…Accordingly, the organic small molecules based OTFTs are more widely popular and they have already demonstrated their potentials toward organic electronic applications such as gas sensors, smart cards, active-matrix displays, radio-frequency identification tags (RFID), HD-TVs, image sensors, iPodsand flexible microelectronics [4][5][6][7][8][9]. The effects of extrinsic factors such as illumination, temperature and humidity [10][11][12][13][14][15] and the nature of the gate dielectric surface properties [16][17][18]that directly affect the performance and drift of OTFTs has been widely studied.The understanding of material transport properties and the characterization of the injecting properties of the metal-semiconductor interface are a crucial interest in the fabrication of efficient devices including especially the effects that result from the device size miniaturization.Therefore, the miniaturization of device dimensions such as the channel lengths effects on electrical performances of organic thin film transistors have been previously reported [19][20][21][22][23].It was found that decreasing channel length resulted in significant degradation of transistor electrical performance. Another most important factor which drops mobility under high gate voltages and which degrade the performances of the thin film transistors is the interface quality between the organic semiconductors and the metalwhich constitutes the source-drain electrodes.…”