tailieunhanh - Light absorption and luminescence properties of the blend poly(n-vinylcarbazole) poly(n-hexylthiophene)

The optimizedmaterial showed a broad absorption in the region from ultra violet to near infra-red and the better of luminescence ability than the pristine conducting polymers. The remarkable improvements in photoluminescence of the blends provide useful information to the application of this material in fabrication of optical – electronic devices. | Communications in Physics, Vol. 26, No. 3 (2016), pp. 269-277 DOI: LIGHT ABSORPTION AND LUMINESCENCE PROPERTIES OF THE BLEND POLY(N-VINYLCARBAZOLE)/POLY(N-HEXYLTHIOPHENE) NGUYEN PHUONG HOAI NAM1,† , HOANG MAI HA2 , NGO TRINH TUNG2 , DANG DINH LONG1 , NGUYEN KHAC QUAN1 , AND VU DUY LIEM1 1 Faculty of Engineering Physics and Nanotechnology, University of Engineering and Technology, Vietnam National University, Hanoi 144 Xuan Thuy Road, Cau Giay District, Hanoi, Vietnam 2 Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam † E-mail: namnph@ Received 04 October 2016 Accepted for publication 29 November 2016 Abstract. We have investigated the enhancement of light absorption and luminescence properties of the blend conducting polymers using poly(N-vinylcarbazole) and poly(N-hexylthiophene). The optimizedmaterial showed a broad absorption in the region from ultra violet to near infra-red and the better of luminescence ability than the pristine conducting polymers. The remarkable improvements in photoluminescence of the blends provide useful information to the application of this material in fabrication of optical – electronic devices. Keywords: PVK, conducting polymer, blend polymer, light absorption, P3HT. Classification numbers: , , . I. INTRODUCTION Since the discovery of electroluminescence (EL) of organic molecules [1], rapid progress has been made in research on these materials due to their potential applications in flat panel display. Organic light-emitting diodes (OLEDs) have been applied to flat panel display due to its ease of manufacturing, all solid-state, a faster switching speed and a wider viewing angle, etc. . . Along with the developing of new technology, OLEDs have the potential to substitute liquid crystal display (LCDs) and to become the pacemaker in the display market. High performance organic light emitting .