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Title: Luminescent systems based on the isolation of conjugated PI systems and edge charge compensation with polar molecules on a charged nanostructured surface

A photoluminescent or electroluminescent system and method of making a non-luminescent nanostructured material into such a luminescent system is presented. The method of preparing the luminescent system, generally, comprises the steps of modifying the surface of a nanostructured material to create isolated regions to act as luminescent centers and to create a charge imbalance on the surface; applying more than one polar molecule to the charged surface of the nanostructured material; and orienting the polar molecules to compensate for the charge imbalance on the surface of the nanostructured material. The compensation of the surface charge imbalance by the polar molecules allows the isolated regions to exhibit luminescence.
Inventors:
; ; ; ; ;
Issue Date:
OSTI Identifier:
1144743
Assignee:
UT-Battelle, LLC (Oak Ridge, TN) ORNL
Patent Number(s):
8,778,226
Application Number:
12/895,226
Contract Number:
AC05-00OR22725
Research Org:
ORNL (Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States))
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Other works cited in this record:

A highly selective chemical gas sensor based on functionalization of multi-walled carbon nanotubes with poly(ethylene glycol)
journal, October 2007
  • Niu, Li; Luo, Yanling; Li, Zhanqing
  • Sensors and Actuators B: Chemical, Vol. 126, Issue 2, p. 361-367
  • DOI: 10.1016/j.snb.2007.03.018

Synthesis and luminescence of nanodiamonds from carbon black
journal, February 2009
  • Hu, Shengliang; Tian, Fei; Bai, Peikang
  • Materials Science and Engineering: B, Vol. 157, Issue 1-3, p. 11-14
  • DOI: 10.1016/j.mseb.2008.12.001

Structural characterization of carboxylated multi-walled carbon nanotubes
journal, July 2008
  • Lee, Geon-Woong; Kim, Jungsoo; Yoon, Jinhwan
  • Thin Solid Films, Vol. 516, Issue 17, p. 5781-5784
  • DOI: 10.1016/j.tsf.2007.10.071

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