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oe1(光电查) - 科学论文

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  • Covalently linked donor–acceptor dyad for efficient single material organic solar cells

    摘要： A novel covalently linked donor–acceptor dyad comprising a dithienopyrrol-based oligomeric donor and a fullerene acceptor was synthesized and characterized. The concomitant effect of favorable optoelectronic properties, energy levels of the frontier orbitals, and ambipolar charge transport enabled the application of the dyad in simplified solution-processed single material organic solar cells reaching a power conversion efficiency of 3.4%.

    关键词： donor–acceptor dyad,organic solar cells,ambipolar charge transport,solution-processed,power conversion efficiency

    更新于2025-09-12 10:27:22

  • Ambipolar charge transport in an organic/inorganic van der Waals p–n heterojunction

    摘要： Hybrid two-dimensional (2D) van der Waals (vdW) p–n junctions are attractive due to the controlled synthesis of the physical performances of organic semiconductors and quantum confinement effects of 2D materials, enabling highly tunable optoelectronic performances as well as low-cost processability. Here, hybrid 2D heterostructures are fabricated using a p-type semiconducting polymer (PDVT-10) and n-type MoS2. An ultra-thin film (B9 nm) of the PDVT-10 polymer is formed using the Langmuir–Schaefer (LS) technique. Large-scale MoS2 monolayers are prepared using a chemical vapor deposition (CVD) method. The PDVT-10/MoS2 vertical heterojunction devices show ambipolar charge transport properties with a p-type maximum field-effect mobility of 0.3 cm2 V(cid:2)1 s(cid:2)1 and an n-type maximum field-effect mobility of 2.45 cm2 V(cid:2)1 s(cid:2)1. In addition, the heterojunctions exhibit a great photoresponse under white light as well as a clear rectifying behavior.

    关键词： PDVT-10,p–n heterojunction,organic/inorganic,van der Waals,ambipolar charge transport,MoS2

    更新于2025-09-09 09:28:46