DataVXACS Applied Materials & InterfacesPaper
journal article·2020-11-18

Atomic Precision Graphene Model Compound for Bright Electrochemiluminescence and Organic Light-Emitting Diodes

Liuqing Yang, Arthur D. Hendsbee, Qin Xue, Shuijian He, Cindy R. De-Jager, Guohua Xie, Gregory C. Welch, Zhifeng Ding

ACS Applied Materials & Interfaces· Volume 12· Issue 46
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Source abstract

Abstract

An N-annulated perylene diimide dimer, tPDI2N-hex, a graphene model compound with atomic precision, was investigated for luminescence applications. Electrochemiluminescence (ECL) of tPDI2N-hex was studied with tri-n-propylamine (TPrA) as a reducing coreactant. ECL-voltage curves along with spooling ECL spectra provided details of light generation mechanisms. The relative ECL quantum efficiency of the Ru(bpy)3(PF6)2/TPrA system was calculated to be 64%, which is superior to that of many other organic molecules because of the desired excited state in the absence of surface states. An organic light-emitting diode (OLED) fabricated with tPDI2N-hex displayed bright orange-red emission with a low color temperature, which is very desirable. It is plausible that the sterically constrained and thus orthogonal aromatic moieties in the tPDI2N-hex structure, with atomic precision graphene layer characteristics, lead to the excellent luminescence performances. The ECL and OLED studies of tPDI2N-hex showcase great application potentials of tPDI2N-hex in both solution-based ECL probes and solid-state light devices.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Advanced biosensing and bioanalysis techniques · Organic Light-Emitting Diodes Research · Luminescence and Fluorescent Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 5B7, Canada

Department of Chemistry, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, Canada

Sauvage Center for Molecular Sciences, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Department of Chemistry, Wuhan University, Wuhan 430072, China

Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China

Funding

Ministry of Education of the People's Republic of China · Canada Foundation for Innovation · University of Calgary · Natural Sciences and Engineering Research Council of Canada · National Natural Science Foundation of China · Wuhan National Laboratory for Optoelectronics · Ontario Photonics Consortium · Premier?s Research Excellence Award · Canada Institute of Photonics Innovation

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