Material Description

η-CuPc, active or HIL layer material for LEDs and organic solar cells. Low price and high purity sublimed grade ideal for organic electronics. η-Copper(II) phthalocyanine, CAS No. 147-14-8, Sublimed ≥99.0%. η-CuPc, known as η-phthalocyanine blue or pigment blue 15, has been used as an electron donor with fullerene-C60 or phenyl-C61-butyric acid methyl ester (PCBM) in vacuum-deposited organic photovoltaics (OPV)[1]. Power conversion efficiency of about 1% has been achieved [2] and improved efficiency of 4% with pentacene-doped η-CuPc layer [3]. η-CuPc has also been used as a hole-injection material for light-emitting diodes. It has been reported that a thin η-CuPc layer may effectively enhance the hole injection from the anode to the emissive-polymer layer, resulting in a dramatic decrease of operating voltage of the device [4]. Device stability was achieved by depositing a η-copper phthalocyanine (η-CuPc) hole-injection layer (HIL) on the ITO anode. The improved stability of the device could be contributed to the good match of its highest-occupied molecular orbital (HOMO) level to the work function of ITO, and the improved wetting property of organic materials on ITO. Moreover, η-CuPc has very weak absorption of light, with wavelengths from 400 to 500 nm, making it suitable for use in blue and green OLEDs. Effective electron-blocking was also observed for inorganic–organic hybrid perovskite solar cells when η-CuPc-doped Spiro-OMeTAD was used as the hole-transporting layer [5].