Abstract Poly-2,5-bis(3′,7′-dimethyloctyloxy)-1,4-phenylenevinylene (BDMO-PPV) is a photoluminescent semiconducting polymer related to others in the well-studied polyphenylene vinylene family such as poly-2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene (MEH-PPV). These materials are known for their instability, degradation, and low efficiency in device operations. We report increased internal and external quantum yield in BDMO-PPV during continuous illumination photodegradation through variations in absorbance, scattering, reflectance, and transmittance of the BDMO-PPV solution. We propose the creation of a highly emissive intermediate photoluminescent state responsible for these increased quantum yields.

中文翻译：

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通过强光照增强 BDMO-PPV 的内部和外部量子产率

摘要 聚 2,5-双(3',7'-二甲基辛氧基)-1,4-亚苯基亚乙烯基 (BDMO-PPV) 是一种光致发光半导体聚合物，与已深入研究的聚亚苯基亚乙烯基家族中的其他聚合物（如聚 2-甲氧基-5-(2-乙基己氧基)-1,4-亚苯基亚乙烯基(MEH-PPV)。这些材料以其在设备操作中的不稳定性、降解性和低效率而著称。我们报告了 BDMO-PPV 在连续照明光降解过程中通过 BDMO-PPV 溶液的吸光度、散射、反射率和透射率的变化增加的内部和外部量子产率。我们建议创建负责这些增加的量子产率的高发射中间光致发光状态。