Ultrafast relaxation dynamics of photoexcitations in poly(3-hexylthiophene) for the determination of the defect concentration

Lee Y.H.; Yabushita A.; Hsu C.S.; Yang S.H.; Iwakura I.; Luo C.W.; Wu K.H.; Kobayashi T.

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Ultrafast relaxation dynamics of photoexcitations in poly(3-hexylthiophene) for the determination of the defect concentration

机译：聚（3-己基噻吩）中光激发的超快弛豫动力学以确定缺陷浓度

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Ultrafast pump-probe spectroscopy of poly(3-hexylthiophene) (P3HT) films was performed using a 9-fs laser and a broadband lock-in detection system. The fast geometrical relaxation (GR) time was attributed to the transition from a free exciton (FE) to form a bound polaron pair (BPP), and the time constant was estimated to be τ_(GR) = 90 ± 2 fs. The relaxation time constant of BPP was determined as τ_(BPP) = 710 ± 40 fs. The measurement of pump-power dependence enabled us to distinguish the defect trapping process of BPPs from other parallel decay processes and to determine the defect concentration of a P3HT thin film.

机译：聚（3-己基噻吩）（P3HT）薄膜的超快泵浦光谱研究是使用9-fs激光和宽带锁定检测系统进行的。快速几何弛豫（GR）时间归因于从自由激子（FE）到形成束缚极化子对（BPP）的过渡，并且时间常数估计为τ_（GR）= 90±2 fs。 BPP的弛豫时间常数确定为τ_（BPP）= 710±40 fs。对泵浦功率依赖性的测量使我们能够将BPP的缺陷捕获过程与其他并行衰减过程区分开，并确定P3HT薄膜的缺陷浓度。

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《Chemical Physics Letters》 |2010年第3期|共6页
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Lee Y.H.; Yabushita A.; Hsu C.S.; Yang S.H.; Iwakura I.; Luo C.W.; Wu K.H.; Kobayashi T.;
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1. Ultrafast relaxation dynamics of photoexcitations in poly(3-hexylthiophene) for the determination of the defect concentration [J] . Lee Y.H., Yabushita A., Hsu C.S., Chemical Physics Letters . 2010,第1a3期

机译：聚（3-己基噻吩）中光激发的超快弛豫动力学以确定缺陷浓度
2. Ultrafast Relaxation of the Poly(3-hexylthiophene) Emission Spectrum [J] . Natalie Banerji, Sarah Cowan, Eric Vauthey The journal of physical chemistry, C. Nanomaterials and interfaces . 2011,第19期

机译：聚（3-己基噻吩）发射光谱的超快弛豫
3. On the Role of Single Regiodefects and Polydispersity in Regioregular Poly(3-hexylthiophene): Defect Distribution, Synthesis of Defect-Free Chains, and a Simple Model for the Determination of Crystallinity [J] . Peter Kohn, Sven Huettner, Hartmut Komber, Journal of the American Chemical Society . 2012,第10期

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4. Synthesis, mobility, and conductivity of well-defined regioregular poly(3-hexylthiophene) and diblock copolymers of regioregular poly(3-hexylthiophene) [C] . Genevieve Sauve, Rui Zhang, Shijun Jia, Organic Field-Effect Transistors V . 2006

机译：定义明确的区域规则的聚（3-己基噻吩）和区域规则的聚（3-己基噻吩）的二嵌段共聚物的合成，迁移率和电导率
5. Ultrafast Spectroscopy Study of Photoexcitations Dynamics in Organic-Inorganic Hybrid Perovskites [D] . Zhai, Yaxin. 2017

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6. Photoexcitation of Ge9− Clusters in THF: New Insights into the Ultrafast Relaxation Dynamics and the Influence of the Cation [O] . Nadine C. Michenfelder, Christian Gienger, Melina Dilanas, 2020

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7. Ultrafast Relaxation of the Poly(3-hexylthiophene) Emission Spectrum [O] . Banerji, Natalie Renuka, Cowan, Sarah, Vauthey, Eric, 2011

机译：聚（3-己基噻吩）发射光谱的超快弛豫
8. Variations in the optical properties of poly(3-hexylthiophene)/C(sub 60) blends and poly(3-hexylthiophene)/sol-gel composites [R] . Wang, H. L. , Grigorva, M. , Mattes, B. R. , 1996

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Ultrafast relaxation dynamics of photoexcitations in poly(3-hexylthiophene) for the determination of the defect concentration

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