"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Theoretical study on energy levels and photophysical properties of p-n block oligomers

GUANGCUN SHAN1,2,* , JUNHUA WAN1, BINGHAI YAN2, QULI FAN1, WEI HUANG1

Affiliation

  1. Institute of Advanced Materials, Fudan University , Shanghai 200433, The People’s Republic of China
  2. Centre for Advanced Study, Tsinghua University, Beijing 10083, The People’s Republic of China

Abstract

Recently, a novel series of oligomers consisting of thiophene as p-type unit and oxadiazole as n-type unit were successfully synthesized. In this article, we present a first-principles study of the electronic, and optical properties on p-n diblock and triblock oligomers systematically. Theoretical studies showed changing the number of thiophene and oxadiazole unit could effectively modulate the electronic properties of p-n diblock and triblock oligomers. The electronic and photophysical properties of theoretical calculation results were in consistent with observed experimental results. These results provide useful guidelines to control the band gap principle of p-n hereostructure oligomers systems, and fundamental insights into understanding the electronic and photophysical properties in p-n hereostructure oligomers systems..

Keywords

Diblock, Triblock, Oligomers, Optical, OLEDs.

Submitted at: Nov. 14, 2006
Accepted at: May 15, 2007

Citation

GUANGCUN SHAN, JUNHUA WAN, BINGHAI YAN, QULI FAN, WEI HUANG, Theoretical study on energy levels and photophysical properties of p-n block oligomers, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 5, pp. 1373-1376 (2007)