Multifunctional copolyfluorene containing pendant benzimidazolyl groups

Applications in chemical sensors and electroluminescent devices

Chia Shing Wu, Chao Te Liu, Yun Chen

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

This paper demonstrates the synthesis of a copolyfluorene (PFBI), containing pendant benzimidazolyl groups, from a poly[(9,9-dihexylfluorene)-alt- (9,9-dibromopentylfluorene)] (PFBr) and its chemosensory and electroluminescent characteristics. The PFBI is readily soluble in common organic solvents, such as chloroform and tetrahydrofuran, and it exhibits good thermal stability (T d > 400°C) and high glass transition temperature (T g > 100°C). Absorption and photoluminescence (PL) spectra of PFBr and PFBI show main peaks at 389 nm and 420 nm, respectively. The solution fluorescence of PFBI is selectively and dramatically quenched by Cu 2+ ions with very high sensitivity (Stern-Volmer coefficient K sv = 2.6 × 10 6 M -1), however, it is partially quenched in the presence of Zn 2+ or Cd 2+ ions accompanied by a 16 nm red-shift. Protonic acids also quench the fluorescence accompanied with a red-shift. Blending the functional copolyfluorene PFBI with MEH-PPV results in significant enhancement of device performance (9820 cd m -2 and 0.65 cd A -1) [ITO/PEDOT:PSS/MEH-PPV + PFBI/Ca (50 nm)/Al (100 nm)]. The results show that polyfluorene with pendant benzimidazolyl groups is a potential candidate for selective detection of Cu 2+ and as additives to enhance the performance of MEH-PPV.

Original languageEnglish
Pages (from-to)3308-3317
Number of pages10
JournalPolymer Chemistry
Volume3
Issue number12
DOIs
Publication statusPublished - 2012 Dec 1

Fingerprint

Luminescent devices
Chemical sensors
Fluorescence
Equipment and Supplies
Ions
Chlorine compounds
Organic solvents
Photoluminescence
Thermodynamic stability
Transition Temperature
Chloroform
Glass
Acids
Hot Temperature
poly(2-methoxy-5-(2'-ethylhexyloxy)-p-phenylenevinylene)
Glass transition temperature

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biochemistry
  • Polymers and Plastics
  • Organic Chemistry

Cite this

@article{702dd21c078d4895b45e1889531cba22,
title = "Multifunctional copolyfluorene containing pendant benzimidazolyl groups: Applications in chemical sensors and electroluminescent devices",
abstract = "This paper demonstrates the synthesis of a copolyfluorene (PFBI), containing pendant benzimidazolyl groups, from a poly[(9,9-dihexylfluorene)-alt- (9,9-dibromopentylfluorene)] (PFBr) and its chemosensory and electroluminescent characteristics. The PFBI is readily soluble in common organic solvents, such as chloroform and tetrahydrofuran, and it exhibits good thermal stability (T d > 400°C) and high glass transition temperature (T g > 100°C). Absorption and photoluminescence (PL) spectra of PFBr and PFBI show main peaks at 389 nm and 420 nm, respectively. The solution fluorescence of PFBI is selectively and dramatically quenched by Cu 2+ ions with very high sensitivity (Stern-Volmer coefficient K sv = 2.6 × 10 6 M -1), however, it is partially quenched in the presence of Zn 2+ or Cd 2+ ions accompanied by a 16 nm red-shift. Protonic acids also quench the fluorescence accompanied with a red-shift. Blending the functional copolyfluorene PFBI with MEH-PPV results in significant enhancement of device performance (9820 cd m -2 and 0.65 cd A -1) [ITO/PEDOT:PSS/MEH-PPV + PFBI/Ca (50 nm)/Al (100 nm)]. The results show that polyfluorene with pendant benzimidazolyl groups is a potential candidate for selective detection of Cu 2+ and as additives to enhance the performance of MEH-PPV.",
author = "Wu, {Chia Shing} and Liu, {Chao Te} and Yun Chen",
year = "2012",
month = "12",
day = "1",
doi = "10.1039/c2py20506h",
language = "English",
volume = "3",
pages = "3308--3317",
journal = "Polymer Chemistry",
issn = "1759-9954",
publisher = "Royal Society of Chemistry",
number = "12",

}

Multifunctional copolyfluorene containing pendant benzimidazolyl groups : Applications in chemical sensors and electroluminescent devices. / Wu, Chia Shing; Liu, Chao Te; Chen, Yun.

In: Polymer Chemistry, Vol. 3, No. 12, 01.12.2012, p. 3308-3317.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Multifunctional copolyfluorene containing pendant benzimidazolyl groups

T2 - Applications in chemical sensors and electroluminescent devices

AU - Wu, Chia Shing

AU - Liu, Chao Te

AU - Chen, Yun

PY - 2012/12/1

Y1 - 2012/12/1

N2 - This paper demonstrates the synthesis of a copolyfluorene (PFBI), containing pendant benzimidazolyl groups, from a poly[(9,9-dihexylfluorene)-alt- (9,9-dibromopentylfluorene)] (PFBr) and its chemosensory and electroluminescent characteristics. The PFBI is readily soluble in common organic solvents, such as chloroform and tetrahydrofuran, and it exhibits good thermal stability (T d > 400°C) and high glass transition temperature (T g > 100°C). Absorption and photoluminescence (PL) spectra of PFBr and PFBI show main peaks at 389 nm and 420 nm, respectively. The solution fluorescence of PFBI is selectively and dramatically quenched by Cu 2+ ions with very high sensitivity (Stern-Volmer coefficient K sv = 2.6 × 10 6 M -1), however, it is partially quenched in the presence of Zn 2+ or Cd 2+ ions accompanied by a 16 nm red-shift. Protonic acids also quench the fluorescence accompanied with a red-shift. Blending the functional copolyfluorene PFBI with MEH-PPV results in significant enhancement of device performance (9820 cd m -2 and 0.65 cd A -1) [ITO/PEDOT:PSS/MEH-PPV + PFBI/Ca (50 nm)/Al (100 nm)]. The results show that polyfluorene with pendant benzimidazolyl groups is a potential candidate for selective detection of Cu 2+ and as additives to enhance the performance of MEH-PPV.

AB - This paper demonstrates the synthesis of a copolyfluorene (PFBI), containing pendant benzimidazolyl groups, from a poly[(9,9-dihexylfluorene)-alt- (9,9-dibromopentylfluorene)] (PFBr) and its chemosensory and electroluminescent characteristics. The PFBI is readily soluble in common organic solvents, such as chloroform and tetrahydrofuran, and it exhibits good thermal stability (T d > 400°C) and high glass transition temperature (T g > 100°C). Absorption and photoluminescence (PL) spectra of PFBr and PFBI show main peaks at 389 nm and 420 nm, respectively. The solution fluorescence of PFBI is selectively and dramatically quenched by Cu 2+ ions with very high sensitivity (Stern-Volmer coefficient K sv = 2.6 × 10 6 M -1), however, it is partially quenched in the presence of Zn 2+ or Cd 2+ ions accompanied by a 16 nm red-shift. Protonic acids also quench the fluorescence accompanied with a red-shift. Blending the functional copolyfluorene PFBI with MEH-PPV results in significant enhancement of device performance (9820 cd m -2 and 0.65 cd A -1) [ITO/PEDOT:PSS/MEH-PPV + PFBI/Ca (50 nm)/Al (100 nm)]. The results show that polyfluorene with pendant benzimidazolyl groups is a potential candidate for selective detection of Cu 2+ and as additives to enhance the performance of MEH-PPV.

UR - http://www.scopus.com/inward/record.url?scp=84868361555&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84868361555&partnerID=8YFLogxK

U2 - 10.1039/c2py20506h

DO - 10.1039/c2py20506h

M3 - Article

VL - 3

SP - 3308

EP - 3317

JO - Polymer Chemistry

JF - Polymer Chemistry

SN - 1759-9954

IS - 12

ER -