Solution-Processable Silicon Phthalocyanines in Electroluminescent and Photovoltaic Devices

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• 作者：Eli Zysman-Colman ; Sanjay S. Ghosh ; Guohua Xie ; Shinto Varghese ; Mithun Chowdhury ; Nidhi Sharma ; David B. Cordes ; Alexandra M. Z. Slawin ; Ifor D. W. Samuel
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：April 13, 2016
• 年：2016
• 卷：8
• 期：14
• 页码：9247-9253
• 全文大小：496K
• 年卷期：0
• ISSN：1944-8252

文摘

Phthalocyanines and their main group and metal complexes are important classes of organic semiconductor materials but are usually highly insoluble and so frequently need to be processed by vacuum deposition in devices. We report two highly soluble silicon phthalocyanine (SiPc) diester compounds and demonstrate their potential as organic semiconductor materials. Near-infrared (λ_EL = 698–709 nm) solution-processed organic light-emitting diodes (OLEDs) were fabricated and exhibited external quantum efficiencies (EQEs) of up to 1.4%. Binary bulk heterojunction solar cells employing P3HT or PTB7 as the donor and the SiPc as the acceptor provided power conversion efficiencies (PCE) of up to 2.7% under simulated solar illumination. Our results show that soluble SiPcs are promising materials for organic electronics.