Citation: Bai Qing-Long, Zhang Chun-Hua, Song Juan-Juan, Liu Jing-Hai, Feng Yan-Chun, Duan Li-Mei, Cheng Chuan-Hui. Metal-free phthalocyanine single crystal: Solvothermal synthesis and near-infrared electroluminescence[J]. Chinese Chemical Letters, ;2016, 27(5): 764-768. doi: 10.1016/j.cclet.2016.01.009 shu

Metal-free phthalocyanine single crystal: Solvothermal synthesis and near-infrared electroluminescence

a.
Inner Mongolia Key Lab of Chemistry of Natural Products and Synthesis of Functional Molecules,College of Chemistry and Chemical Engineering,Inner Mongolia University for Nationalities,Tongliao 028000,China
b.
School of Physics and Optoelectronics Technology Dalian University of Technology Dalian 116024,China

Corresponding author: Bai Qing-Long, baiql1968@sina.com
Received Date: 21 July 2015
Revised Date: 1 October 2015
Accepted Date: 19 January 2016
Available Online: 19 May 2016

Figures(8)

A metal-free purple H₂Pc single crystal was synthesized by a facile solvothermal method,and its solubility and near-infrared (NIR) optical properties were also investigated due to its potential applications as a light-emitting layer for OLEDs. The H₂Pc single crystal is insoluble in 1-chlorine naphthalene and other organic solvents. It gives a wide absorption in the range from 620 nm to 679 nm and a wide emission in near 922 nm. As an active light-emitting layer,H₂Pc was employed to fabricate electroluminescent (EL) devices with a structure of ITO/NPB (30 nm)/Alq₃:H₂Pc (30 nm)/BCP (20 nm)/Alq₃ (20 nm)/Al. The emission center is at 936 nm when the H₂Pc doping concentration is 20 wt%. The doping concentration strongly governs the emission intensity. When doping concentration decreases from 10 wt% to 1 wt%,the emission intensity remarkably fades,and simultaneously the emission center undergoes a blue shift.
- Solvothermal synthesis,
- H₂Pc single crystal,
- Optical properties,
- Near-infrared,
- Electroluminescence
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1.
沈阳化工大学材料科学与工程学院沈阳 110142