Low-band gap copolymers based on diketopyrrolopyrrole and dibenzosilole and their application in organic photovoltaics
Sign Up to like & getrecommendations! Published in 2017 at "Dyes and Pigments"
DOI: 10.1016/j.dyepig.2017.06.041
Abstract: Abstract We report donor-acceptor copolymers incorporating electron-donating dimethylsilole and electron-withdrawing diketopyrrolopyrrole (DPP) units. To investigate effects of alkyl chain attached to the DPP unit, 2-decyltetradecyl (24-alkyl) group and 7-decylnonadecyl (29-alkyl) with linear space group were… read more here.
Keywords: dpp units; gap copolymers; band gap; microscopy ... See more keywords
A super low band-gap IR dye realized 360° omnibearing and all optical wavelength photo-detection
Sign Up to like & getrecommendations! Published in 2021 at "Dyes and Pigments"
DOI: 10.1016/j.dyepig.2020.108811
Abstract: ABSTRACT Common photo-detectors can easily detect the front light source, but it has no response for the rear incident light. If the light source comes from back, to obtain the photo-electric signal, the detector has… read more here.
Keywords: low band; 360 omnibearing; photo; band gap ... See more keywords
Photophysical and photoconductive aspects of donor-acceptor low band gap conjugated copolymer
Sign Up to like & getrecommendations! Published in 2018 at "Optical Materials"
DOI: 10.1016/j.optmat.2018.08.005
Abstract: Abstract This article presents the photophysical and photoconductive properties of a newly synthesized low band gap Donor-Acceptor conjugated poly (benzothiadiazole-triphenylamine) co-polymer labelled as P(BTZ-TPA) in which 2,1,3 benzothiadiazole (BTZ) act as the electron deficient moiety… read more here.
Keywords: band gap; donor acceptor; low band; photophysical photoconductive ... See more keywords
Ultra-low-band gap thienoisoindigo-based ambipolar type neutral green copolymers with ProDOT and thiophene units as NIR electrochromic materials
Sign Up to like & getrecommendations! Published in 2020 at "Organic Electronics"
DOI: 10.1016/j.orgel.2020.105685
Abstract: Abstract In this paper, thiophene and alkyl substituted propylenedioxythiophene (ProDOT) are taken as the donor units and the alkyl substituted thienoisoindigo (TIIG) unit is adopted as the electron deficient unit. The three donor-acceptor (D-A) type… read more here.
Keywords: color; band gap; ultra low; band ... See more keywords
Design of a highly crystalline low-band gap fused-ring electron acceptor for high-efficiency solar cells with low energy loss
Sign Up to like & getrecommendations! Published in 2017 at "Chemistry of Materials"
DOI: 10.1021/acs.chemmater.7b02853
Abstract: A fused-ring thiophene-thieno[3,2-b]thiophene-thiophene (4T)-based low-band gap electron acceptor, 4TIC, has been designed and synthesized for non-fullerene solar cells. The utilization of the 4T center core enhances the charge mobility of 4TIC and extends its absorption… read more here.
Keywords: band gap; electron acceptor; band; low band ... See more keywords
Low Band Gap Donor–Acceptor Conjugated Polymers with Indanone-Condensed Thiadiazolo[3,4-g]quinoxaline Acceptors
Sign Up to like & getrecommendations! Published in 2019 at "Macromolecules"
DOI: 10.1021/acs.macromol.9b00834
Abstract: Donor–acceptor (D–A) conjugated polymers with the band gaps below 1.0 eV can exhibit unique near-infrared (NIR) activities and multiple functional applications. However, it is still a big challenge... read more here.
Keywords: acceptor conjugated; low band; donor acceptor; conjugated polymers ... See more keywords
Low Band Gap Perovskite Concentrator Solar Cells: Physics, Device Simulation, and Experiment.
Sign Up to like & getrecommendations! Published in 2022 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.2c06393
Abstract: Perovskite solar cells (PSCs) own rapidly increasing power conversion efficiencies (PCEs), but their concentrated counterparts (i.e., PCSCs) show a much lower performance. A deeper understanding of PCSCs relies on a thorough study of the intensive… read more here.
Keywords: physics; low band; solar cells; band gap ... See more keywords
A low band gap diketopyrrolopyrrole-based polymer: Synthesis, thermal and optical properties
Sign Up to like & getrecommendations! Published in 2018 at "Ferroelectrics"
DOI: 10.1080/00150193.2018.1453193
Abstract: ABSTRACT In this work, P-DPP, which was a low band gap polymer based on diketopyrrolopyrrole (DPP) and cyclopentadithiophene (CPDT), was synthesized through palladium-catalyzed Stille coupling reaction. Due to the strong electron-donating property of CPDT and… read more here.
Keywords: gap; band gap; optical properties; thermal optical ... See more keywords
Polarized Near-infraered Light Emitting Devices Fabricated With Low-band-gap Polymer Oriented Films
Sign Up to like & getrecommendations! Published in 2019 at "Molecular Crystals and Liquid Crystals"
DOI: 10.1080/15421406.2019.1648045
Abstract: Abstract We fabricated polarized near-infrared (NIR) emitting devices using with the oriented films of a low-band-gap-polymer PTB7 (poly{4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b']tithiophene-2,6-diyl-alt-3-fluoro-2- [(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophene-4,6-diyl}) as the emitting layer. The oriented PTB7 films were fabricated on substrates with transparent electrodes by… read more here.
Keywords: emitting devices; polarized near; polymer; oriented films ... See more keywords
MEMS Tunable Frame Antennas Enabling Carrier Aggregation at 600 Mhz
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.2996186
Abstract: The goal of this paper is to propose a tunable antenna system, that aims to cover the LTE low band (699–960 MHz), medium band (1710–2100 MHz) and high band (2100–2690 MHz), as well as the… read more here.
Keywords: frame; low band; mems tunable; band ... See more keywords
A Method to Suppress the Coupling of Dual-Frequency Antennas
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Antennas and Wireless Propagation Letters"
DOI: 10.1109/lawp.2021.3086810
Abstract: 5G antennas are usually integrated with the 2G/3G/4G antennas to save the tower space and cost. However, this will bring problems of mutual interference. In this letter, by setting a periodic coupling suppression structure near… read more here.
Keywords: suppress coupling; dual frequency; band element; method suppress ... See more keywords