scholarly journals Donor–acceptor–acceptor-type near-infrared fluorophores that contain dithienophosphole oxide and boryl groups: Effect of the boryl group on the nonradiative decay

2021 ◽  
Author(s):  
Yoshiaki Sugihara ◽  
Naoto Inai ◽  
Masayasu Taki ◽  
Thomas Baumgartner ◽  
Ryosuke Kawakami ◽  
...  
Keyword(s):  
Near Infrared ◽  
Effective Strategy ◽  
Nonradiative Decay ◽  
Donor Acceptor

he use of donor–π–acceptor (D–π–A) skeletons is an effective strategy for the design of fluorophores with red-shifted emission. In particular, the use of amino and boryl moieties as the electron-donating...

A small bandgap (3E,7E)-3,7-bis(2-oxoindolin-3-ylidene)benzo[1,2-b:4,5-b′]difuran-2,6(3H,7H)-dione (IBDF) based polymer semiconductor for near-infrared organic phototransistors

2017 ◽  
Vol 5 (46) ◽  
pp. 12163-12171 ◽  
Author(s):  
Yinghui He ◽  
Jesse T. E. Quinn ◽  
Dongliang Hou ◽  
Jenner H.L. Ngai ◽  
Yuning Li
Keyword(s):  
Band Gap ◽  
Near Infrared ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Polymer Semiconductor ◽  
Donor Acceptor ◽  
Small Band

A novel small bandgap donor–acceptor polymer with a very small band gap of 0.95 eV shows promising photoresponse under near infrared light in phototransistors.

Efficient near-infrared organic light-emitting diodes based on a bipolar host

2018 ◽  
Vol 6 (6) ◽  
pp. 1407-1412 ◽  
Author(s):  
Yun Hu ◽  
Yi Yuan ◽  
Ying-Li Shi ◽  
Jiu-Dong Lin ◽  
Zuo-Quan Jiang ◽  
...  
Keyword(s):  
Near Infrared ◽  
Light Emitting Diodes ◽  
Emission Peak ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Type Host ◽  
Organic Light ◽  
Donor Acceptor

A maximum EQE of 2.7% with an emission peak of 735 nm was achieved by employing a donor–acceptor type host 5-(4-(diphenylamino)phenyl)acenaphthylene-1,2-dione (ADO-TPA).

Donor–Acceptor Dihydropyrenes Switchable with Near-Infrared Light

2020 ◽  
Vol 142 (27) ◽  
pp. 11857-11864 ◽  
Author(s):  
Kristin Klaue ◽  
Wenjie Han ◽  
Pauline Liesfeld ◽  
Fabian Berger ◽  
Yves Garmshausen ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Donor Acceptor

Aldehyde-Substituted Donor–Acceptor-Type Dithienylethenes as Novel Building Blocks for Photochromic Materials

2018 ◽  
Vol 42 (10) ◽  
pp. 531-534 ◽  
Author(s):  
Yangyang Wang ◽  
Mengna Li ◽  
Yufei Song ◽  
Ming Qin ◽  
Xuehui Li ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Near Infrared ◽  
Building Blocks ◽  
Formyl Group ◽  
Photochromic Properties ◽  
H Nmr ◽  
Donor Acceptor ◽  
Group Functions ◽  
Photochromic Materials ◽  
C Nmr

Two novel donor–π–acceptor-type dithienylethene derivatives, in which the triphenylamine group acts as electron donor and the formyl group functions as electron acceptor, have been developed. Their structures were confirmed by 1H NMR, 13C NMR and HRMS (ESI). Investigation of their photochromic properties indicated that they had good photochromic behaviour and excellent fatigue resistance on irradiation with UV or visible light. DFT calculations further validated these experimental results for photochromic behaviour. Moreover, these compounds can be utilised as versatile building blocks to construct novel near-infrared photochromic materials.

scholarly journals Electrochemical Copolymerization of Isoindigo‐Based Donor‐Acceptor Polymers with Intrinsically Enhanced Conductivity and Near‐Infrared‐II Activity

2020 ◽  
Vol 7 (18) ◽  
pp. 3752-3760
Author(s):  
Nicholas E. Sparks ◽  
Tharindu A. Ranathunge ◽  
Nuwan H. Attanayake ◽  
Phillip Brodgon ◽  
Jared H. Delcamp ◽  
...  
Keyword(s):  
Near Infrared ◽  
Electrochemical Copolymerization ◽  
Donor Acceptor ◽  
Enhanced Conductivity

scholarly journals A Novel DR/NIR T-Shaped AIEgen: Synthesis and X-Ray Crystal Structure Study

Crystals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 269 ◽  
Author(s):  
Rosita Diana ◽  
Ugo Caruso ◽  
Luigi Di Costanzo ◽  
Gelsomina Bakayoko ◽  
Barbara Panunzi
Keyword(s):  
Crystal Structure ◽  
Near Infrared ◽  
Condensation Product ◽  
Infrared Emission ◽  
Structure Study ◽  
X Ray ◽  
Hydrogen Bond Interactions ◽  
Main Plane ◽  
Donor Acceptor ◽  
Intramolecular Hydrogen

We developed a new benzodifuran derivative as the condensation product between 2,6-diamino-4-(4-nitrophenyl)benzo[1,2-b:4,5-b’]difuran-3,7-dicarboxylate and 3-hydroxy-2-naphthaldehyde. The intramolecular hydrogen-bond interactions in the terminal half-salen moieties produce a sterically encumbered highly conjugated main plane and a D-A-D (donor-acceptor-donor) T-shaped structure. The novel AIEgen (aggregation-induced enhanced emission generator) fulfils the requirement of RIR (restriction of intramolecular rotation) molecules. DR/NIR (deep red/near infrared) emission was recorded in solution and in the solid state, with a noteworthy photoluminescence quantum yield recorded on the neat crystals which undergo some mechanochromism. The crystal structure study of the probe from data collected at a synchrotron X-ray source shows a main aromatic plane π-stacked in a columnar arrangement.

Tuning the Donor-Acceptor Strength of Low-Bandgap Platinum-Acetylide Polymers for Near-Infrared Photovoltaic Applications

2011 ◽  
Vol 32 (18) ◽  
pp. 1472-1477 ◽  
Author(s):  
Chuanjiang Qin ◽  
Yingying Fu ◽  
Chung-Hin Chui ◽  
Chi-Wai Kan ◽  
Zhiyuan Xie ◽  
...  
Keyword(s):  
Near Infrared ◽  
Low Bandgap ◽  
Photovoltaic Applications ◽  
Donor Acceptor
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