Charges on nano-islands and fibrils of poly(3-hexylthiophene-2,5-diyl) – light-modulation, injection and transportation

Abstract

The impact of the nanostructures of conjugated polymers on their electronic properties is significant.

Nanowire Junction Induced High Threshold Voltage in Poly(3‐hexylthiophene) Mesoscale Crystalline Thin‐Film Transistors with Significantly Enhanced Mobility

“…All materials were used as received without further purification. The P3HT solution of 7 mg mL −1 in CB was stirred at 1000 rpm at 50 °C for 12 h. The PMMA solution of 10 mg mL −1 in ethyl acetate was stirred at 1000 rpm at 50 °C for 12 h. The P3HT nanowire blend solutions were prepared by referring a method reported . First, P3HT solution was put into water‐bath thermostat (Yu Hua DF‐101S), which was set at 50 °C.…”

“…In this work, we introduce a simple water‐bath‐assisted self‐assembly process to fabricate the nanowires in P3HT films . The mesoscale crystalline structure can be formed in the solution and the P3HT nanowire incorporated in films can be achieved after a simple one‐step spin‐coating process, therefore, it is suitable for the printing electronics.…”

Atomic Force Microscope Study of Ag-Conduct Polymer Hybrid Films: Evidence for Light-Induced Charge Separation

“…However, it is difficult to achieve this requirement through conventional technical means. The charge distribution of nanostructures and the local electrostatic potential of the sample surface can be effectively measured by electrostatic force microscopy (EFM) and scanning Kelvin probe microscopy (scale) [ 21 , 22 , 23 ] ( Figure S1 ). For example, it is found via SKPM that charge separation at the interface between the Au and TiO 2 NPs varied under UV and visible-near infrared light [ 24 ].…”

“…For example, it is found via SKPM that charge separation at the interface between the Au and TiO 2 NPs varied under UV and visible-near infrared light [ 24 ]. The charge injection and transport in the highly oriented P3HT film induced by nano-CdS/CdSe have been reported [ 22 ]. The charge separation at the interface of MEH-PPV and TiO 2 nanocomposite film have been also directly observed [ 23 ].…”

Maintaining nanoimprinting-induced face-on alignment in poly(3-hexylthiophene) nanopillars after thermal annealing

“…The optical and electronic properties of conjugated polymers are intrinsically anisotropic due to the delocalization of the p-electrons along their backbones 1 and the strong inter-chain electronic-coupling. 2 Thereby, control over the molecular and crystallographic alignment of conjugated polymers allows for efficient charge transport along specic directions in organic optoelectronic devices such as light-emitting diodes, 3 eld-effect transistors 4 and photovoltaic cells. 5 Various approaches such as selfassembly, 6 external elds, 7 epitaxy 8 and nano-connement 9 have been developed to control the orientational order of conjugated polymer thin lms and to improve the performance of organic optoelectronic devices.…”