A novel n-type organic semiconductor comprising a 1,5-naphthyridine-2,6-dione unit

Abstract

The first example of 1,5- naphthyridine-2,6-dione (NTD)-based n-type small molecules, NTDT-DCV and NTDP-DCV with the electron-withdrawing dicyanovinyl terminal unit and different aromatic bridging groups (thiophene and benzene, respectively) were synthesized...

The effect of heteroatoms at end groups of anthracene derivatives on the photoelectric properties and crystal/film morphology: a theoretical perspective

“…Organic semiconductors with unique optical, electrical, and magnetic properties have been widely developed and applied in organic integrated optoelectronic devices, such as organic solar cells (OPVs), [1][2][3][4] organic light emitting transistors (OLETs), 5,6 organic field-effect optical waveguides, 7,8 and organic field effect transistors (OFETs). [9][10][11] Among these optoelectronic devices, OLETs are the most potential devices that exhibit certain intriguing multifunctionality of electroluminescent devices. An OLET is a thin-film transistor with the ability to generate light.…”

Important Role of Intramolecular Charge Transport in Film Mobility

“…In terms of the structural design of organic field effect transistors (OFETs) or organic photovoltaic (OPVs) materials, large π-conjugated blocks, such as fluorenes, thiophene derivatives, isoindigo, are generally used to construct the main chains of molecules to achieve high charge carrier mobility in their aggregated film (also called film mobility). − In addition, the attachment of flexible side groups rather than rigid ones to the backbone chains is preferred to yield a higher film mobility, ,, because flexible side groups can avoid large steric hindrances on the molecular backbones, allowing tighter intermolecular packing and shorter distance for intermolecular CT. − The established research stressed that “Inter-molecular charge transport is much slower, generally thought as the rate-determining step for the charge transport in the film”…”

Scalable, Color‐Matched, Flexible Plasmonic Film for Visible–Infrared Compatible Camouflage

“…Therefore, it is necessary to reduce the detectability of a target at different detectable wavelengths by adjusting its characteristic signal to be the same or comparable to the background environment. [4][5][6] With the popularity of infrared detection and surveillance systems, the visible and midinfrared ranges are the two most prevalent and important wavebands in camouflage technology. [7][8][9] To achieve spectra modulation in both visible and infrared ranges, materials with nanostructures have been explored and promising research progress has been accomplished.…”

“…[7][8][9] To achieve spectra modulation in both visible and infrared ranges, materials with nanostructures have been explored and promising research progress has been accomplished. [5,[10][11][12][13] By modifying the structural parameters of the material surface, researchers achieve optical modulation at different wavelengths by changing the optical properties (reflection, absorption, and transmission) of the intrinsic material via interference and scattering. [14][15][16][17][18] At the same time, nanostructured materials have some distinct advantages over conventional chemically dyed camouflage materials, such as good thermal and chemical stability and long durability, and are therefore expected to be at the forefront of applied research.…”

“…[14][15][16][17][18] At the same time, nanostructured materials have some distinct advantages over conventional chemically dyed camouflage materials, such as good thermal and chemical stability and long durability, and are therefore expected to be at the forefront of applied research. [19] According to recent visible-infrared compatible camouflage studies, various nanostructured configurations, such as multilayers, [20][21] photonic crystals, [22][23] plasmonic, [15] and metamaterials, [5,[24][25][26][27] have produced different interference colors in the visible range, while exhibiting ultra-low emissivity in the infrared range. The majority of nanostructure-based multiband camouflage studies are currently at the fundamental research stage due to their limited size and complicated fabrication procedure.…”