Recent Progress in the Synthesis and Applications of Azaacenes

2020 ◽  
Vol 24 (8) ◽  
pp. 885-899 ◽  
Author(s):  
Yuechao Wu ◽  
Yi Jin ◽  
Jianguo Xu ◽  
Yanwen Lv ◽  
Jiangang Yu
Keyword(s):  
Recent Progress ◽  
Field Effect Transistors ◽  
Organic Light Emitting Diodes ◽  
Partial Substitution ◽  
Organic N ◽  
Organic Field Effect Transistors ◽  
Organic Electronic Devices ◽  
Light Emitting ◽  
Phenyl Rings ◽  
Type Semiconductor

Partial substitution of CH groups in the skeletons of linearly fused phenyl rings provides an appreciable possibility to tailor their properties. Among them, azaacenes induced from a partial substitution of oligoacenes by nitrogen are one of the most promising derivatives with a view of their potential application in organic electronic devices as a novel organic n-type semiconductor. Hence this review focuses on recent progress in the synthesis of azaacenes and their applications beyond organic field-effect transistors (OFETs) such as organic light-emitting diodes (OLEDs), phototransistors, photoelectrical chemical cells, organic memory, solar cells, conductors and sensors.

scholarly journals Oligofuran–Benzothiadiazole Co-oligomers: Synthesis, Optoelectronic Properties and Reactivity

2021 ◽  
Vol 03 (02) ◽  
pp. 303-308
Author(s):  
Dror Ben Abba Amiel ◽  
Choongik Kim ◽  
Ori Gidron
Keyword(s):  
Organic Solar Cells ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Organic Light Emitting Diodes ◽  
Organic Field Effect Transistors ◽  
Active Materials ◽  
Light Emitting ◽  
Organic Light ◽  
Donor Acceptor ◽  
Optical Bandgaps

Donor–acceptor–donor (DAD) triad systems are commonly applied as active materials in ambipolar organic field-effect transistors, organic solar cells, and NIR-emitting organic light-emitting diodes. Often, these triads utilize oligothiophenes as donors, whereas their oxygen-containing analogs, oligofurans, are far less studied in this setup. Here we introduce a family of DAD triads in which the donors are oligofurans and the acceptor is benzothiadiazole. In a combined computational and experimental study, we show that these triads display optical bandgaps similar to those of their thiophene analogs, and that a bifuran donor is sufficient to produce emission in the NIR spectral region. The presence of a central acceptor unit increases the photostability of oligofuran-based DAD systems compared with parent oligofurans of the similar length.

Synthesis, characterization, and hole-transporting properties of benzotriazatruxene derivatives

2019 ◽  
Vol 7 (47) ◽  
pp. 15035-15041 ◽  
Author(s):  
Tianchai Chooppawa ◽  
Supawadee Namuangruk ◽  
Hiroshi M. Yamamoto ◽  
Vinich Promarak ◽  
Paitoon Rashatasakhon
Keyword(s):  
Field Effect ◽  
Light Emitting Diodes ◽  
Field Effect Transistors ◽  
Organic Light Emitting Diodes ◽  
Organic Field Effect Transistors ◽  
Light Emitting ◽  
Organic Light ◽  
Hole Transporting ◽  
Derivatives Of ◽  
Hole Transporting Materials

Four derivatives of benzotriazatruxene are synthesized and tested as hole-transporting materials in organic field-effect transistors and organic light-emitting diodes.

scholarly journals Organophosphorus derivatives for electronic devices

2016 ◽  
Vol 4 (17) ◽  
pp. 3686-3698 ◽  
Author(s):  
D. Joly ◽  
P.-A. Bouit ◽  
M. Hissler
Keyword(s):  
Field Effect Transistors ◽  
Organophosphorus Compounds ◽  
Electronic Devices ◽  
Dye Sensitized Solar Cells ◽  
Organic Light Emitting Diodes ◽  
Organic Field Effect Transistors ◽  
Light Emitting ◽  
Dye Sensitized ◽  
Main Class ◽  
Sensitized Solar Cells

This review presents the main class of organophosphorus compounds (triaryl phosphines, phosphazenes, phospholes, phosphetes and diphosphacyclobutanes), which have been used in electronic devices (organic light-emitting diodes (OLEDs), organic photovoltaic cells (OPV cells), dye-sensitized solar cells (DSSCs), organic field-effect transistors (OFETs), and electrochromic cells).

scholarly journals Perylene monoimide and naphthalene-annulated [3,3,3]propellanes: synthesis and device applications

2020 ◽  
Vol 4 (12) ◽  
pp. 3539-3545 ◽  
Author(s):  
Lingling Lv ◽  
Wenda Sun ◽  
Zhenmei Jia ◽  
Guowei Zhang ◽  
Fuzhi Wang ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Organic Light Emitting Diodes ◽  
Organic Field Effect Transistors ◽  
Light Emitting ◽  
Organic Light ◽  
Polycyclic Aromatic ◽  
Device Applications

3D polycyclic aromatic hydrocarbons are synthesized, and their applications for organic field-effect transistors and organic light-emitting diodes are explored.

Synthesis of a Novel D-A Type Photoelectrical Material: 5,5'-(9,9-Dioctyl-9H-Fluorene-2,7-Diyl)bis(Thiophene-2-Carbaldehyde)

2014 ◽  
Vol 556-562 ◽  
pp. 408-411
Author(s):  
Xiao Xia Sun ◽  
Ze Biao Tang ◽  
Yu Hu
Keyword(s):  
Organic Molecules ◽  
Field Effect Transistors ◽  
Aldehyde Group ◽  
Organic Light Emitting Diodes ◽  
Organic Field Effect Transistors ◽  
Light Emitting ◽  
Donor Acceptor ◽  
Efficient Route ◽  
Property Profile ◽  
High Yields

A donor-acceptor organic molecule based on fluorene unit as an electron donor and aldehyde group as an electron acceptor has been demonstrated in high yields over four steps. This approach offers a much milder and more efficient route to synthesize the target compound via the Vilsmeier-Haack reaction. Optical spectra show that the electron-accepting groups induce an intermolecular charge transfer, resulting in a shift of the absorbance maximum toward longer wavelength. Such D-A type intermediate compounds as organic molecules display a significantly improved property profile in photoelectrical materials for applications in organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and organic field-effect transistors (OFETs).

scholarly journals 4-Azafluorenone and α-Carboline Fluorophores with Green and Violet/Blue Emission

Molecules ◽  
2019 ◽  
Vol 24 (13) ◽  
pp. 2378
Author(s):  
Marek Cigáň ◽  
Peter Danko ◽  
Henrich Brath ◽  
Matúš Čakurda ◽  
Roman Fišera ◽  
...  
Keyword(s):  
Field Effect Transistors ◽  
Blue Emission ◽  
Organic Light Emitting Diodes ◽  
Electromagnetic Spectrum ◽  
Organic Field Effect Transistors ◽  
Thin Solid Films ◽  
Light Emitting ◽  
Solid Films ◽  
Effective Mobility ◽  
Solid Film

The emission properties of three 4-azafluorenone and five new α-carboline fluorophores in both solution and thin solid films were investigated. Fluorescence of the azafluorenone is clearly enhanced in thin solid films due to the presence of phenyl/biphenyl rotors, and these derivatives can be classified as green Aggregation-Induced Emission luminogens (AIEgens) with a non-emissive heteroaromatic core structure. Compared to azafluorenones, emission of α-carbolines is hypsochromically shifted to the blue region of the electromagnetic spectrum, and most of these derivatives exhibit strong violet-blue fluorescence in both solution and thin solid film layers. Further, the effective mobility and electroluminescence of new α-carbolines were investigated in prepared organic field-effect transistors and organic light-emitting diodes, respectively.

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