Simultaneous blue, green, and red emission from diblock copolymer micellar films: a new approach to white-light emission.

نویسندگان

  • Ruobing Wang
  • Juan Peng
  • Feng Qiu
  • Yuliang Yang
  • Zhiyuan Xie
چکیده

White-light emission is achieved from a single layer of diblock copolymer micelles containing green- and red-light-emitting dyes in the separate micellar cores and blue-light-emitting polymer around their periphery, in which fluorescence resonance energy transfer between fluorophores is inhibited due to micelle isolation, resulting in simultaneous emission of these three species.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Enhanced white-light emission from multiple fluorophores encapsulated in a single layer of diblock copolymer micelles.

Enhanced white-light emission was achieved by loading green- and red-light-emitting donor-acceptor pairs in the separate micellar cores and blue-light-emitting polymers around their periphery. Fluorescence resonance energy transfer was enabled between a donor and an acceptor in cores, but was suppressed among these three light-emitting species by micellar coronas, which resulted in their enhanc...

متن کامل

Molecular Design of Efficient White-Light-Emitting Fluorene-Based Copolymers by Mixing Singlet and Triplet Emission

A new strategy to realize efficient white-light emission from a binary fluorene-based copolymer (PF-Phq) with the fluorene segment as a blue emitter and the iridium complex, 9-iridium(III)bis(2-(2-phenyl-quinoline-N,C30)(11,13-tetradecanedionate))-3,6-carbazole (Phq), as a red emitter has been proposed and demonstrated. The photoand electroluminescence properties of the PF-Phq copolymers were i...

متن کامل

Electrophosphorescent Polyfluorenes Containing Osmium Complexes in the Conjugated Backbone

lectrophosphorescent copolymers have been synthesized by covalent bonding of a red-emitting osmium complex Os(bpftz), hich contains two 3-trifluoromethyl-5-(4-tert-butyl-2-pyridyl)triazolate (bpftz) cyclometalated ligands, into the backbone of a ipolar polyfluorene (PF) copolymer. Employing these copolymers, a highly efficient red polymer light-emitting diode has been ealised that has an extern...

متن کامل

Visible light photocatalytic activity of MWCNT/TiO2 using the degradation of methylene blue

Multi-walled carbon nanotubes (MWCNT)-doped TiO2 thin films were synthesized by the dip-coating method. The obtained products were characterized by SEM, EDX, XRD, and UV-vis absorption spectroscopy. The XRD patterns showed the presence of anatase phase. Absorption spectrum of MWCNT-doped TiO2 revealed a red shift in the optical absorption edge due to carbon doping. The photocatalytic properties...

متن کامل

Visible light-responsive micelles formed from dialkoxyanthracene-containing block copolymers.

A class of dialkoxyanthracene-containing diblock copolymers is synthesized which possesses visible light-responsivity. These copolymers can self-assemble into a micellar structure in water. Green visible light (540 nm) is able to scissor these anthracene species and cleave the diblock copolymer into two fragments, inducing disassembly of the self-assembled micelles.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Chemical communications

دوره 44  شماره 

صفحات  -

تاریخ انتشار 2009