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

Yun Hu; Yi Yuan; Ying Li Shi; Jiu Dong Lin; Zuo Quan Jiang; Liang Sheng Liao

doi:10.1039/c7tc04843b

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

Yun Hu, Yi Yuan, Ying Li Shi, Jiu Dong Lin, Zuo Quan Jiang^*, Liang Sheng Liao

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

The donor/acceptor (D/A) type π-conjugated molecule has superior characteristics which can be easily tuned. Herein, a D-A type host material 5-(4-(diphenylamino)phenyl)acenaphthylene-1,2-dione (ADO-TPA) was designed and synthesized with diphenylamino as the hole-transporting unit and acenaphthylene-1,2-dione as the electron-transporting unit within the molecule for the fabrication of near-infrared (NIR) organic light-emitting diodes (OLEDs). The thermal, photophysical and electrochemical properties of ADO-TPA were systematically investigated and the new host showed bipolar behavior. Significantly, the low turn on voltage of 3 V is achieved because of the narrow bandgap of ADO-TPA of about 2.14 eV. In particular, the device with 20 wt% of 3,4-bis(4-(diphenylamino)phenyl)acenaphtho[1,2-b]pyrazine-8,9-dicarbonitrile (APDC-DTPA) doped into the ADO-TPA host exhibited a maximum external quantum efficiency (EQE) of 2.7% with an emission peak of 735 nm.

Original language	English
Pages (from-to)	1407-1412
Number of pages	6
Journal	Journal of Materials Chemistry C
Volume	6
Issue number	6
DOIs	https://doi.org/10.1039/c7tc04843b
Publication status	Published - 2018
Externally published	Yes

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title = "Efficient near-infrared organic light-emitting diodes based on a bipolar host",

abstract = "The donor/acceptor (D/A) type π-conjugated molecule has superior characteristics which can be easily tuned. Herein, a D-A type host material 5-(4-(diphenylamino)phenyl)acenaphthylene-1,2-dione (ADO-TPA) was designed and synthesized with diphenylamino as the hole-transporting unit and acenaphthylene-1,2-dione as the electron-transporting unit within the molecule for the fabrication of near-infrared (NIR) organic light-emitting diodes (OLEDs). The thermal, photophysical and electrochemical properties of ADO-TPA were systematically investigated and the new host showed bipolar behavior. Significantly, the low turn on voltage of 3 V is achieved because of the narrow bandgap of ADO-TPA of about 2.14 eV. In particular, the device with 20 wt% of 3,4-bis(4-(diphenylamino)phenyl)acenaphtho[1,2-b]pyrazine-8,9-dicarbonitrile (APDC-DTPA) doped into the ADO-TPA host exhibited a maximum external quantum efficiency (EQE) of 2.7% with an emission peak of 735 nm.",

author = "Yun Hu and Yi Yuan and Shi, {Ying Li} and Lin, {Jiu Dong} and Jiang, {Zuo Quan} and Liao, {Liang Sheng}",

note = "Publisher Copyright: {\textcopyright} 2018 The Royal Society of Chemistry.",

year = "2018",

doi = "10.1039/c7tc04843b",

language = "English",

volume = "6",

pages = "1407--1412",

journal = "Journal of Materials Chemistry C",

issn = "2050-7534",

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T1 - Efficient near-infrared organic light-emitting diodes based on a bipolar host

AU - Hu, Yun

AU - Yuan, Yi

AU - Shi, Ying Li

AU - Lin, Jiu Dong

AU - Jiang, Zuo Quan

AU - Liao, Liang Sheng

PY - 2018

Y1 - 2018

N2 - The donor/acceptor (D/A) type π-conjugated molecule has superior characteristics which can be easily tuned. Herein, a D-A type host material 5-(4-(diphenylamino)phenyl)acenaphthylene-1,2-dione (ADO-TPA) was designed and synthesized with diphenylamino as the hole-transporting unit and acenaphthylene-1,2-dione as the electron-transporting unit within the molecule for the fabrication of near-infrared (NIR) organic light-emitting diodes (OLEDs). The thermal, photophysical and electrochemical properties of ADO-TPA were systematically investigated and the new host showed bipolar behavior. Significantly, the low turn on voltage of 3 V is achieved because of the narrow bandgap of ADO-TPA of about 2.14 eV. In particular, the device with 20 wt% of 3,4-bis(4-(diphenylamino)phenyl)acenaphtho[1,2-b]pyrazine-8,9-dicarbonitrile (APDC-DTPA) doped into the ADO-TPA host exhibited a maximum external quantum efficiency (EQE) of 2.7% with an emission peak of 735 nm.

AB - The donor/acceptor (D/A) type π-conjugated molecule has superior characteristics which can be easily tuned. Herein, a D-A type host material 5-(4-(diphenylamino)phenyl)acenaphthylene-1,2-dione (ADO-TPA) was designed and synthesized with diphenylamino as the hole-transporting unit and acenaphthylene-1,2-dione as the electron-transporting unit within the molecule for the fabrication of near-infrared (NIR) organic light-emitting diodes (OLEDs). The thermal, photophysical and electrochemical properties of ADO-TPA were systematically investigated and the new host showed bipolar behavior. Significantly, the low turn on voltage of 3 V is achieved because of the narrow bandgap of ADO-TPA of about 2.14 eV. In particular, the device with 20 wt% of 3,4-bis(4-(diphenylamino)phenyl)acenaphtho[1,2-b]pyrazine-8,9-dicarbonitrile (APDC-DTPA) doped into the ADO-TPA host exhibited a maximum external quantum efficiency (EQE) of 2.7% with an emission peak of 735 nm.

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U2 - 10.1039/c7tc04843b

DO - 10.1039/c7tc04843b

M3 - Article

AN - SCOPUS:85041496547

SN - 2050-7534

VL - 6

SP - 1407

EP - 1412

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

IS - 6

ER -

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

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