New Donor−Acceptor Random Copolymers with Pendent Triphenylamine and 1,3,4-Oxadiazole for High-Performance Memory Device Applications

Donor–acceptor-type organic semiconductor molecules are of great interest for potential organic field-effect transistor applications with ambipolar characteristics and non-volatile memory applications. Here, we synthesized an organic semiconductor, PDPPT-TT, and directly utilized it in both field-effect transistor and non-volatile memory applications. As-synthesized PDPPT-TT was simply spin-coated on a substrate for the device fabrications. The PDPPT-TT based field-effect transistor showed ambipolar electrical transfer characteristics. Furthermore, a gold nanoparticle-embedded dielectric layer was used as a charge trapping layer for the non-volatile memory device applications. The non-volatile memory device showed clear memory window formation as applied gate voltage increases, and electrical stability was evaluated by performing retention and cycling tests. In summary, we demonstrate that a donor–acceptor-type organic semiconductor molecule shows great potential for ambipolar field-effect transistors and non-volatile memory device applications as an important class of materials.

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Fluorene based donor-acceptor polymer electrets for nonvolatile organic transistor memory device applications

Journal of Polymer Science Part A Polymer Chemistry ◽

10.1002/pola.27483 ◽

2014 ◽

Vol 53 (4) ◽

pp. 602-614 ◽

Cited By ~ 18

Author(s):

Lei Dong ◽

Han-Sheng Sun ◽

Jau-Tzeng Wang ◽

Wen-Ya Lee ◽

Wen-Chang Chen

Keyword(s):

Memory Device ◽

Organic Transistor ◽

Device Applications ◽

Donor Acceptor ◽

Polymer Electrets

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High-κ HfO2/Al2O3 nanolaminated charge trapping layers for high performance flash memory device applications

10.7567/ssdm.2006.f-7-2 ◽

2006 ◽

Author(s):

S. Maikap ◽

P. J. Tzeng ◽

T.-Y. Wang ◽

C. H. Lin ◽

H. Y. Lee ◽

...

Keyword(s):

Flash Memory ◽

High Performance ◽

Charge Trapping ◽

Memory Device ◽

Device Applications

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Constructing Donor-Resonance-Donor Molecules for Acceptor-Free Bipolar Organic Semiconductors

Research ◽

10.34133/2021/9525802 ◽

2021 ◽

Vol 2021 ◽

pp. 1-10

Author(s):

He Jiang ◽

Jibiao Jin ◽

Zijie Wang ◽

Wuji Wang ◽

Runfeng Chen ◽

...

Keyword(s):

Organic Semiconductors ◽

High Performance ◽

Molecular Design ◽

Stimuli Responsive ◽

Light Emitting ◽

Deep Blue ◽

Device Structures ◽

Device Applications ◽

Donor Acceptor ◽

Organic Optoelectronic

Organic semiconductors with bipolar transporting character are highly attractive as they offer the possibility to achieve high optoelectronic performance in simple device structures. However, the continual efforts in preparing bipolar materials are focusing on donor-acceptor (D-A) architectures by introducing both electron-donating and electron-withdrawing units into one molecule in static molecular design principles. Here, we report a dynamic approach to construct bipolar materials using only electron-donating carbazoles connected by N-P=X resonance linkages in a donor-resonance-donor (D-r-D) structure. By facilitating the stimuli-responsive resonance variation, these D-r-D molecules exhibit extraordinary bipolar properties by positively charging one donor of carbazole in enantiotropic N+=P-X- canonical forms for electron transport without the involvement of any acceptors. With thus realized efficient and balanced charge transport, blue and deep-blue phosphorescent organic light emitting diodes hosted by these D-r-D molecules show high external quantum efficiencies up to 16.2% and 18.3% in vacuum-deposited and spin-coated devices, respectively. These results via the D-r-D molecular design strategy represent an important concept advance in constructing bipolar organic optoelectronic semiconductors dynamically for high-performance device applications.

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Donor–acceptor polymers for advanced memory device applications

Polymer Chemistry ◽

10.1039/c1py00189b ◽

2011 ◽

Vol 2 (10) ◽

pp. 2169 ◽

Cited By ~ 128

Author(s):

Cheng-Liang Liu ◽

Wen-Chang Chen

Keyword(s):

Memory Device ◽

Device Applications ◽

Donor Acceptor

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HfO2/HfAlO/HfO2Nanolaminate Charge Trapping Layers for High-Performance Nonvolatile Memory Device Applications

Japanese Journal of Applied Physics ◽

10.1143/jjap.46.1803 ◽

2007 ◽

Vol 46 (4A) ◽

pp. 1803-1807 ◽

Cited By ~ 8

Author(s):

Siddheswar Maikap ◽

Pei-Jer Tzeng ◽

Ting-Yu Wang ◽

Heng-Yuan Lee ◽

Cha-Hsin Lin ◽

...

Keyword(s):

Nonvolatile Memory ◽

High Performance ◽

Charge Trapping ◽

Memory Device ◽

Nonvolatile Memory Device ◽

Device Applications

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Synthesis, Morphology, and Properties of Poly(3-hexylthiophene)-block-Poly(vinylphenyl oxadiazole) Donor-Acceptor Rod-Coil Block Copolymers and Their Memory Device Applications

Advanced Functional Materials ◽

10.1002/adfm.201000879 ◽

2010 ◽

Vol 20 (18) ◽

pp. 3012-3024 ◽

Cited By ~ 103

Author(s):

Yi-Kai Fang ◽

Cheng-Liang Liu ◽

Chaoxu Li ◽

Chih-Jung Lin ◽

Raffaele Mezzenga ◽

...

Keyword(s):

Block Copolymers ◽

Memory Device ◽

Device Applications ◽

Donor Acceptor

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Conjugated Polymers Containing Building Blocks 1,3,4,6-Tetraarylpyrrolo[3,2-b]pyrrole-2,5-dione (isoDPP), Benzodipyrrolidone (BDP) or Naphthodipyrrolidone (NDP): A Review

Polymers ◽

10.3390/polym11101683 ◽

2019 ◽

Vol 11 (10) ◽

pp. 1683 ◽

Cited By ~ 3

Author(s):

Zhifeng Deng ◽

Taotao Ai ◽

Rui Li ◽

Wei Yuan ◽

Kaili Zhang ◽

...

Keyword(s):

Conjugated Polymers ◽

High Performance ◽

Electronic Device ◽

Building Blocks ◽

Electrochemical Characteristics ◽

The Novel ◽

Synthesis Properties ◽

Device Applications ◽

Donor Acceptor ◽

Better Than

π-Conjugated organic donor–acceptor (D–A) type polymers are widely developed and used in electronic device. Among which, diketopyrrolopyrrole (DPP)-based polymers have received the most attention due to their high performances. The novel chromophores named 1,3,4,6-tetraarylpyrrolo[3,2-b]pyrrole-2,5-dione (isoDPP), benzodipyrrolidone (BDP) and naphthodipyrrolidone (NDP) are resemble DPP in chemical structure. IsoDPP is an isomer of DPP, with the switching position of carbonyl and amide units. The cores of BDP and NDP are tri- and tetracyclic, whereas isoDPP is bicyclic. π-Conjugation extension could result polymers with distinct optical, electrochemical and device performance. It is expected that the polymers containing these high-performance electron-deficient pigments are potential in the electronic device applications, and have the potential to be better than the DPP-based ones. IsoDPP, BDP, and NDP based polymers are synthesized since 2011, and have not receive desirable attention. In this work, the synthesis, properties (optical and electrochemical characteristics), electronic device as well as their relationship depending on core-extension or structure subtle optimization have been reviewed. The final goal is to outline a theoretical scaffold for the design the D–A type conjugated polymers, which is potential for high-performance electronic devices.

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