Turn-on and color-switchable red luminescent liquid crystals based on pyrrolopyrrole derivatives

Shuangxiong Dai; Yudai Zhou; Haoli Zhang; Zhengxu Cai; Bin Tong; Jianbing Shi; Yuping Dong

doi:10.1039/d0tc01902j

Turn-on and color-switchable red luminescent liquid crystals based on pyrrolopyrrole derivatives

Shuangxiong Dai, Yudai Zhou, Haoli Zhang, Zhengxu Cai, Bin Tong^*, Jianbing Shi, Yuping Dong^*

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

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

17 Citations (Scopus)

Abstract

A novel nitro-substituted pyrrolopyrrole derivative (TPPP-NO2) was synthesized and displayed liquid crystalline properties with red-emissive color. The luminescent liquid crystalline materials exhibited turn-on emission when transformed into the liquid crystalline (LC) phase at 135 °C, while turn-off at 185 °C when the LC phase melted into the isotropic liquid. The heat or mechanical force induced molecular arrangement from short-range to long-range ordered packing and the decreased intermolecular π-π interaction were responsible for the luminescence turn-on phenomenon. An application for detecting the changes of temperature was displayed by preparing TPPP-NO2 mixed with a polydimethylsiloxane (PDMS) thin film. This stimuli-responsive film could give high-temperature alert by switching the emission color from red to yellow when the temperature was increased to 150-200 °C.

Original language	English
Pages (from-to)	11177-11184
Number of pages	8
Journal	Journal of Materials Chemistry C
Volume	8
Issue number	32
DOIs	https://doi.org/10.1039/d0tc01902j
Publication status	Published - 28 Aug 2020

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title = "Turn-on and color-switchable red luminescent liquid crystals based on pyrrolopyrrole derivatives",

abstract = "A novel nitro-substituted pyrrolopyrrole derivative (TPPP-NO2) was synthesized and displayed liquid crystalline properties with red-emissive color. The luminescent liquid crystalline materials exhibited turn-on emission when transformed into the liquid crystalline (LC) phase at 135 °C, while turn-off at 185 °C when the LC phase melted into the isotropic liquid. The heat or mechanical force induced molecular arrangement from short-range to long-range ordered packing and the decreased intermolecular π-π interaction were responsible for the luminescence turn-on phenomenon. An application for detecting the changes of temperature was displayed by preparing TPPP-NO2 mixed with a polydimethylsiloxane (PDMS) thin film. This stimuli-responsive film could give high-temperature alert by switching the emission color from red to yellow when the temperature was increased to 150-200 °C.",

author = "Shuangxiong Dai and Yudai Zhou and Haoli Zhang and Zhengxu Cai and Bin Tong and Jianbing Shi and Yuping Dong",

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

year = "2020",

month = aug,

day = "28",

doi = "10.1039/d0tc01902j",

language = "English",

volume = "8",

pages = "11177--11184",

journal = "Journal of Materials Chemistry C",

issn = "2050-7526",

publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - Turn-on and color-switchable red luminescent liquid crystals based on pyrrolopyrrole derivatives

AU - Dai, Shuangxiong

AU - Zhou, Yudai

AU - Zhang, Haoli

AU - Cai, Zhengxu

AU - Tong, Bin

AU - Shi, Jianbing

AU - Dong, Yuping

PY - 2020/8/28

Y1 - 2020/8/28

N2 - A novel nitro-substituted pyrrolopyrrole derivative (TPPP-NO2) was synthesized and displayed liquid crystalline properties with red-emissive color. The luminescent liquid crystalline materials exhibited turn-on emission when transformed into the liquid crystalline (LC) phase at 135 °C, while turn-off at 185 °C when the LC phase melted into the isotropic liquid. The heat or mechanical force induced molecular arrangement from short-range to long-range ordered packing and the decreased intermolecular π-π interaction were responsible for the luminescence turn-on phenomenon. An application for detecting the changes of temperature was displayed by preparing TPPP-NO2 mixed with a polydimethylsiloxane (PDMS) thin film. This stimuli-responsive film could give high-temperature alert by switching the emission color from red to yellow when the temperature was increased to 150-200 °C.

AB - A novel nitro-substituted pyrrolopyrrole derivative (TPPP-NO2) was synthesized and displayed liquid crystalline properties with red-emissive color. The luminescent liquid crystalline materials exhibited turn-on emission when transformed into the liquid crystalline (LC) phase at 135 °C, while turn-off at 185 °C when the LC phase melted into the isotropic liquid. The heat or mechanical force induced molecular arrangement from short-range to long-range ordered packing and the decreased intermolecular π-π interaction were responsible for the luminescence turn-on phenomenon. An application for detecting the changes of temperature was displayed by preparing TPPP-NO2 mixed with a polydimethylsiloxane (PDMS) thin film. This stimuli-responsive film could give high-temperature alert by switching the emission color from red to yellow when the temperature was increased to 150-200 °C.

UR - http://www.scopus.com/inward/record.url?scp=85090284510&partnerID=8YFLogxK

U2 - 10.1039/d0tc01902j

DO - 10.1039/d0tc01902j

M3 - Article

AN - SCOPUS:85090284510

SN - 2050-7526

VL - 8

SP - 11177

EP - 11184

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

IS - 32

ER -

Turn-on and color-switchable red luminescent liquid crystals based on pyrrolopyrrole derivatives

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