Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Tuesday 19th September 2017 from 8.00am to 4.00pm (BST).

During this time our website performance may be temporarily affected. If you have any questions please use the feedback button available under our menu button. We apologise for any inconvenience this might cause and thank you for your patience.



A new pyrene cored small organic molecule with a flexible alkyl spacer: a potential solution processable blue emitter with bright photoluminescence

Author affiliations

Abstract

A new pyrene cored small organic molecule viz. 1,3,6,8-tetrakis(4-((5-(9H-carbazol-9-yl)pentyl)oxy)phenyl)pyrene (PY-II) was designed and synthesized. The carbazole moiety with an alkyl spacer was introduced at 1, 3, 6 and 8 positions of the pyrene core to improve the charge transport properties and solution processability. PY-II exhibited excellent solubility in common organic solvents and high thermal stability up to 345 °C. The photoluminescence quantum yield (PLQY) of PY-II in solution was found to be 0.9 with bright blue emission near 450 nm which is just appropriate for the human eye. The solution processed non-doped OLED device fabricated using PY-II as an emissive layer afforded a pure blue emission with CIE coordinates of 0.16 and 0.16, a power efficiency of 0.17 lm W−1, a maximum current efficiency of 0.41 cd A−1 and a maximum brightness of 202 cd m−2.

Graphical abstract: A new pyrene cored small organic molecule with a flexible alkyl spacer: a potential solution processable blue emitter with bright photoluminescence

Back to tab navigation

Supplementary files

Publication details

The article was received on 31 May 2017, accepted on 20 Aug 2017 and first published on 22 Aug 2017


Article type: Paper
DOI: 10.1039/C7NJ01921A
Citation: New J. Chem., 2017, Advance Article
  •   Request permissions

    A new pyrene cored small organic molecule with a flexible alkyl spacer: a potential solution processable blue emitter with bright photoluminescence

    N. G. Valsange, F. L. Wong, D. Shinde, C. S. Lee, V. A. L. Roy, S. Manzhos, K. Feron, S. Chang, R. Katoh, P. Sonar and P. P. Wadgaonkar, New J. Chem., 2017, Advance Article , DOI: 10.1039/C7NJ01921A

Search articles by author

Spotlight

Advertisements