P and N type copper phthalocyanines as effective semiconductors in organic thin-film transistor based DNA biosensors at elevated temperatures

Abstract

This study illustrates the use of an N-type semiconductor, in both temperature and DNA sensors and further elucidates the mechanism of DNA sensing in OTFTs.

Metal phthalocyanine organic thin-film transistors: changes in electrical performance and stability in response to temperature and environment

“…Devices were characterized at 25 C in air or vacuum (P < 0.1 Pa). Data for CuPc devices was taken from a previous publication by our group, 24 where the devices were fabricated and characterised under identical conditions. b m Avg ¼ saturationregion mean eld-effect mobility.…”

“…Under vacuum (P < 0.1 Pa), little DV T was seen, but similar m E increases were observed. 24 In this study, we examine the impact of operating temperature (25 C to 150 C), and environmental pressure (atmospheric and under vacuum P < 0.1 Pa), on charge transport and electrical stability of several P-type MPc-based BGBC OTFTs ( Fig. 1h-i).…”

Controlled Synthesis of Poly(pentafluorostyrene-ran-methyl methacrylate) Copolymers by Nitroxide Mediated Polymerization and Their Use as Dielectric Layers in Organic Thin-film Transistors

“…The µ of the OTFT devices was calculated using the capacitance densities for the corresponding copolymers obtained from the dielectric constants in the previous section. The resulting OTFTs were characterized by having μ = 1 to 3 × 10 −3 cm 2 /Vs, I ON/OFF 1 to 10 × 10 3 and a V T = −4 to −17 V, which is typical for CuPc based OTFT devices [ 48 , 49 , 50 ]. Characteristic output and transfer curves are shown in Figure 7 .…”

Silicon Phthalocyanines as Acceptor Candidates in Mixed Solution/Evaporation Processed Planar Heterojunction Organic Photovoltaic Devices

“…MPcs are also employed in organic electronic applications as the semiconductor. Their high molar extinction coefficient (in the order of 10 5 M −1 •cm −1 ) [31,32] and their relatively high charge transport properties (mobilities in the order of 10 −5 up to 2.5 cm 2 •V −1 •s −1 ), due to favorable molecular stacking, have facilitated their application in organic thin film transistors (OTFTs) [33][34][35][36][37], organic light emitting diode (OLEDs) [38][39][40][41], and OPVs [42][43][44][45][46]. Even if divalent MPcs such as zinc MPc (ZnPc) or copper MPc (CuPc) are well studied, the use of tetravalent MPcs such as tin MPcs (SnPc) or silicon MPcs (SiPc) remain limited [35,47].…”