Employing the plasmonic effect of the Ag-graphene composite for enhancing light harvesting and photoluminescence quenching efficiency of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylene-vinylene]

Chenxin Ran; Minqiang Wang; Weiyin Gao

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Employing the plasmonic effect of the Ag-graphene composite for enhancing light harvesting and photoluminescence quenching efficiency of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylene-vinylene]

机译：利用银-石墨烯复合物的等离子体效应增强聚[2-甲氧基-5-（2-乙基己氧基）-1,4-亚苯基-亚乙烯基]的光收集和光致发光猝灭效率

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In this work, we report that the Ag-graphene composite (AGO can effectively enhance the light harvesting and photoluminescence (PL) quenching efficiency of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylene-vinylene] (MEH-PPV). Loading the AGC on MEH-PPV leads to improved light absorption ability and PL quenching efficiency, which is due to the strong interaction between localized surface plasmon resonance (LSPR)-activated Ag nanoparticles and the MEH-PPV molecule. Control experiment reveals that the combination of graphene and Ag nanoparticles achieves superior light absorptivity and PL quenching ability compared with individual graphene and Ag NPs. The exponential shape of the Stern-Volmer plot implies that both Ag and graphene in the AGC can offer the quenching pathway for the PL quenching process. We also found that the AGC with a broader LSPR absorption range is competitive in enhancing the light absorption ability and PL quenching efficiency of the MEH-PPV-AGC composite, because it can expand LSPR-induced light harvesting and PL quenching response to a wider absorption range.

机译：在这项工作中，我们报告说，Ag-石墨烯复合材料（AGO可以有效提高聚[2-甲氧基-5-（2-乙基己氧基）-1,4-亚苯基-亚乙烯基]的光捕获和光致发光（PL）猝灭效率。（MEH-PPV）。将AGC加载到MEH-PPV上可提高光吸收能力和PL猝灭效率，这是由于局部表面等离振子共振（LSPR）活化的Ag纳米颗粒与MEH-PPV分子之间的强烈相互作用所致。对照实验表明，石墨烯与银纳米颗粒的结合比单个石墨烯和银纳米颗粒具有更好的吸光率和PL猝灭能力，Stern-Volmer图的指数形状表明AGC中的Ag和石墨烯均可提供猝灭途径。我们还发现具有较宽的LSPR吸收范围的AGC在提高MEH-PPV-AGC复合材料的光吸收能力和PL猝灭效率方面具有竞争力。可以将LSPR诱导的光收集和PL猝灭响应扩展到更宽的吸收范围。

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《Physical chemistry chemical physics: PCCP》 |2014年第10期|共8页
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Chenxin Ran; Minqiang Wang; Weiyin Gao;
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1. Employing the plasmonic effect of the Ag-graphene composite for enhancing light harvesting and photoluminescence quenching efficiency of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylene-vinylene] [J] . Chenxin Ran, Minqiang Wang, Weiyin Gao Physical chemistry chemical physics: PCCP . 2014,第10期

机译：利用银-石墨烯复合物的等离子体效应增强聚[2-甲氧基-5-（2-乙基己氧基）-1,4-亚苯基-亚乙烯基]的光收集和光致发光猝灭效率
2. Memory effect in a junction-like CdS nanocomposite/conducting polymer poly[2-methoxy-5-(2-ethylhexyloxy)1,4-phenylene-vinylene] heterostructure [J] . Mondal SP, Reddy VS, Das S, Nanotechnology . 2008,第21期

机译：结型CdS纳米复合材料/导电聚合物聚[2-甲氧基-5-（2-乙基己氧基）1,4-亚苯基-亚乙烯基]异质结构中的记忆效应
3. Memory effect of CdSe/ZnS nanoparticles embedded in a conducting poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylene-vinylene] polymer layer [J] . Fushan Li, Dong-lck Son, Han-Moe Cha, Applied Physics Letters . 2007,第22期

机译：嵌入导电聚[2-甲氧基-5-（2-乙基己氧基）-1,4-亚苯基-亚乙烯基]聚合物层中的CdSe / ZnS纳米粒子的记忆效应
4. Plasmonic enhancement of light-harvesting efficiency in Perovskite solar cells embedding Ag nanorods [C] . Pengda Xiao, Tong Li, Yitai Zhu, International Conference on Numerical Simulation of Optoelectronic Devices . 2020

机译：等离子增强嵌入Ag纳米棒的钙钛矿太阳能电池的集光效率
5. Plasmonic control of light emission for enhanced efficiency and beam shaping. [D] . DiMaria, Jeffrey V. 2014

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6. Photoluminescence from Carbon Dot-Gold NanoparticleComposites Enhanced by Photonic and Plasmonic Double-Resonant Effects [O] . Yoshio Kamura, Kohei Imura, * 2020

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7. Thermoelectric Enhancement by Compositing Carbon Nanotubes into Iodine-Doped Poly2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene [O] . -1

机译：通过将碳纳米管合成碘掺杂聚2-甲氧基-5-（2-乙基己氧基）-1,4-苯乙烯来热电增强
8. Large Optoelectronic Enhancement of Light-Harvesting Polymers by Chain Confinement and Charge Percolation for LEDs and Photocells Based on Ultrathin Films and CNT Nanocomposites [R] . Yang, A. C. 2010

机译：基于超薄膜和CNT纳米复合材料的LED和光电池链式限制和电荷渗透的光收集聚合物的大型光电增强

Employing the plasmonic effect of the Ag-graphene composite for enhancing light harvesting and photoluminescence quenching efficiency of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylene-vinylene]

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