Improved efficiency and stability in polymer solar cells using a Tetra-nuclear Zinc(II) complex interfacial layer
Source abstract
Abstract
Abstract Tetra-nuclear Zinc(II) complex Zn 4 O(AID) 6 [AID = 7-azaindolate] is a wide band gap luminescent material that exhibits efficient emission matching the absorption spectra of organic donor materials such as polythiophene (P3HT). This work demonstrates polymer solar cells (PSC) based on P3HT:PCBM (phenyl-C 61 -butyric acid methyl ester) blend active layer with a Zn 4 O(AID) 6 cathode interfacial layer achieving a power conversion efficiency (PCE) significantly higher than that of the reference devices. The energy level and impedance spectroscopy analysis show that the Zn 4 O(AID) 6 cathode interfacial layer acts as an efficient exciton/hole blocking layer, and reduces charge recombination rate with more efficient electron extraction. The Zn 4 O(AID) 6 interfacial layer also helps achieve longer lifetime of PSC devices. The improved efficiency and stability combined with low cost and nontoxicity of Zn 4 O(AID) 6 make it a promising cathode interfacial material for high-performance and stable PSC devices.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Organic Electronics and Photovoltaics · Conducting polymers and applications · Organic Light-Emitting Diodes Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (50)
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