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Title: Platinum (II) azatetrabenzoporphyrins for near-infrared organic light emitting diodes

Abstract

In this paper, we describe a series of platinum (II) azatetrabenzoporphyrin emitters for near-infrared (NIR) organic light emitting diode (OLED) applications. Platinum (II) aza-triphenyltetrabenzoporphyrin (PtNTBP) results in a 72 nm shift in the photoluminescent (PL) emission spectrum to 842nm compared to 770nm of the platinum (II) tetraphenyltetrabenzoporphyrin (PtTPTBP). Also, the full width at half maximum of the emission spectrum of PtNTBP was significantly narrowed to 27 nm compared to 40nm for PtTPTBP. The multilayer devices fabricated by thermal vacuum evaporation process employing PtTPTBP, PtNTBP, and cis-PtN2TBP exhibit electroluminescent (EL) emission peak at 770 nm, 848 nm, and 846 nm with the peak external quantum efficiency (EQE) of 8.0%, 2.8%, and 1.5%, respectively. Even with the decrease in EQE of devices employing PtNTBP and cis-PtN2TBP compared with those employing PtTPTBP, the combination of the spectral narrowing and the bathochromic shift to lower energy EL emission demonstrates the promise of PtNTBP for NIR applications. In the meanwhile, the solution-processed single-layer device using PtNTBP demonstrates the EQE of 0.33% and the peak EL emission at 844 nm.

Authors:
 [1];  [1];  [1];  [1]
  1. Arizona State Univ., Tempe, AZ (United States). Materials Science and Engineering Program
Publication Date:
Research Org.:
Arizona State Univ., Tempe, AZ (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1465953
Alternate Identifier(s):
OSTI ID: 1334365
Grant/Contract Number:  
EE0007090
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 109; Journal Issue: 23; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Huang, L., Park, C. D., Fleetham, T., and Li, J. Platinum (II) azatetrabenzoporphyrins for near-infrared organic light emitting diodes. United States: N. p., 2016. Web. doi:10.1063/1.4971363.
Huang, L., Park, C. D., Fleetham, T., & Li, J. Platinum (II) azatetrabenzoporphyrins for near-infrared organic light emitting diodes. United States. https://doi.org/10.1063/1.4971363
Huang, L., Park, C. D., Fleetham, T., and Li, J. 2016. "Platinum (II) azatetrabenzoporphyrins for near-infrared organic light emitting diodes". United States. https://doi.org/10.1063/1.4971363. https://www.osti.gov/servlets/purl/1465953.
@article{osti_1465953,
title = {Platinum (II) azatetrabenzoporphyrins for near-infrared organic light emitting diodes},
author = {Huang, L. and Park, C. D. and Fleetham, T. and Li, J.},
abstractNote = {In this paper, we describe a series of platinum (II) azatetrabenzoporphyrin emitters for near-infrared (NIR) organic light emitting diode (OLED) applications. Platinum (II) aza-triphenyltetrabenzoporphyrin (PtNTBP) results in a 72 nm shift in the photoluminescent (PL) emission spectrum to 842nm compared to 770nm of the platinum (II) tetraphenyltetrabenzoporphyrin (PtTPTBP). Also, the full width at half maximum of the emission spectrum of PtNTBP was significantly narrowed to 27 nm compared to 40nm for PtTPTBP. The multilayer devices fabricated by thermal vacuum evaporation process employing PtTPTBP, PtNTBP, and cis-PtN2TBP exhibit electroluminescent (EL) emission peak at 770 nm, 848 nm, and 846 nm with the peak external quantum efficiency (EQE) of 8.0%, 2.8%, and 1.5%, respectively. Even with the decrease in EQE of devices employing PtNTBP and cis-PtN2TBP compared with those employing PtTPTBP, the combination of the spectral narrowing and the bathochromic shift to lower energy EL emission demonstrates the promise of PtNTBP for NIR applications. In the meanwhile, the solution-processed single-layer device using PtNTBP demonstrates the EQE of 0.33% and the peak EL emission at 844 nm.},
doi = {10.1063/1.4971363},
url = {https://www.osti.gov/biblio/1465953}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 23,
volume = 109,
place = {United States},
year = {Mon Dec 05 00:00:00 EST 2016},
month = {Mon Dec 05 00:00:00 EST 2016}
}

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Cited by: 19 works
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Works referenced in this record:

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Works referencing / citing this record:

Near‐Infrared (NIR) Organic Light‐Emitting Diodes (OLEDs): Challenges and Opportunities
journal, January 2019


Efficient Near-Infrared Electroluminescence at 840 nm with “Metal-Free” Small-Molecule:Polymer Blends
journal, July 2018


Decoupling degradation in exciton formation and recombination during lifetime testing of organic light-emitting devices
journal, September 2017


Recent Advances on Metal-Based Near-Infrared and Infrared Emitting OLEDs
journal, April 2019


Near‐Infrared (NIR) Organic Light‐Emitting Diodes (OLEDs): Challenges and Opportunities
journal, September 2019


Recent Advances on Metal-Based Near-Infrared and Infrared Emitting OLEDs
journal, April 2019