Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 8, Issue 14, Pages 9247-9253Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b12408
Keywords
silicon phthalocyanines; single crystals; near-IR emission; solution-processable organic light-emitting diodes; organic solar cells
Funding
- University of St. Andrews
- EPSRC [EP/J01771X]
- European Research Council [321305]
- Royal Society Wolfson Research Merit Award
- EPSRC [EP/J01771X/1, EP/M02105X/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/M02105X/1, EP/J01771X/1] Funding Source: researchfish
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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 (lambda(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.
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