Enhanced Electroluminescence from a Thiophene-Based Insulated Molecular Wire

Gábor Méhes; Chengjun Pan; Fatima Bencheikh; Li Zhao; Kazunori Sugiyasu; Masayuki Takeuchi; Jean Charles Ribierre; Chihaya Adachi

doi:10.1021/acsmacrolett.6b00205

Enhanced Electroluminescence from a Thiophene-Based Insulated Molecular Wire

Gábor Méhes, Chengjun Pan, Fatima Bencheikh, Li Zhao, Kazunori Sugiyasu, Masayuki Takeuchi, Jean Charles Ribierre, Chihaya Adachi

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

23 Citations (Scopus)

Abstract

We report on the realization of polymer light-emitting diodes (PLEDs) based on fluorescent polythiophene (PT)-based insulated molecular wires (IMWs). PLEDs using PT emitting layers traditionally have low external quantum efficiencies (η_eqe) below 0.1%. Moreover, IMWs lack a thorough exploitation for electroluminescent applications due to concerns about reduced charge transport between their chains. We constructed multilayer PLEDs containing PT IMW emitting layers that show the maximum η_eqe close to 1.4%, luminance at 3700 cd/m², and low turn on voltage at 2.5 V. We also show a strong influence of the thickness of electron transport layer on η_eqe through device optimization and optical simulations.

Original language	English
Pages (from-to)	781-785
Number of pages	5
Journal	ACS Macro Letters
Volume	5
Issue number	7
DOIs	https://doi.org/10.1021/acsmacrolett.6b00205
Publication status	Published - Jul 19 2016

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/acsmacrolett.6b00205

Cite this

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title = "Enhanced Electroluminescence from a Thiophene-Based Insulated Molecular Wire",

abstract = "We report on the realization of polymer light-emitting diodes (PLEDs) based on fluorescent polythiophene (PT)-based insulated molecular wires (IMWs). PLEDs using PT emitting layers traditionally have low external quantum efficiencies (ηeqe) below 0.1%. Moreover, IMWs lack a thorough exploitation for electroluminescent applications due to concerns about reduced charge transport between their chains. We constructed multilayer PLEDs containing PT IMW emitting layers that show the maximum ηeqe close to 1.4%, luminance at 3700 cd/m2, and low turn on voltage at 2.5 V. We also show a strong influence of the thickness of electron transport layer on ηeqe through device optimization and optical simulations.",

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T1 - Enhanced Electroluminescence from a Thiophene-Based Insulated Molecular Wire

AU - Méhes, Gábor

AU - Pan, Chengjun

AU - Bencheikh, Fatima

AU - Zhao, Li

AU - Sugiyasu, Kazunori

AU - Takeuchi, Masayuki

AU - Ribierre, Jean Charles

AU - Adachi, Chihaya

PY - 2016/7/19

Y1 - 2016/7/19

N2 - We report on the realization of polymer light-emitting diodes (PLEDs) based on fluorescent polythiophene (PT)-based insulated molecular wires (IMWs). PLEDs using PT emitting layers traditionally have low external quantum efficiencies (ηeqe) below 0.1%. Moreover, IMWs lack a thorough exploitation for electroluminescent applications due to concerns about reduced charge transport between their chains. We constructed multilayer PLEDs containing PT IMW emitting layers that show the maximum ηeqe close to 1.4%, luminance at 3700 cd/m2, and low turn on voltage at 2.5 V. We also show a strong influence of the thickness of electron transport layer on ηeqe through device optimization and optical simulations.

AB - We report on the realization of polymer light-emitting diodes (PLEDs) based on fluorescent polythiophene (PT)-based insulated molecular wires (IMWs). PLEDs using PT emitting layers traditionally have low external quantum efficiencies (ηeqe) below 0.1%. Moreover, IMWs lack a thorough exploitation for electroluminescent applications due to concerns about reduced charge transport between their chains. We constructed multilayer PLEDs containing PT IMW emitting layers that show the maximum ηeqe close to 1.4%, luminance at 3700 cd/m2, and low turn on voltage at 2.5 V. We also show a strong influence of the thickness of electron transport layer on ηeqe through device optimization and optical simulations.

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Enhanced Electroluminescence from a Thiophene-Based Insulated Molecular Wire

Abstract

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