Mechanism of Different Piezoresponsive Luminescence of 2,3,4,5-Tetraphenylthiophene and 2,3,4,5-Tetraphenylfuran: A Strategy for Designing Pressure-Induced Emission Enhancement Materials.,The Journal of Physical Chemistry Letters

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Mechanism of Different Piezoresponsive Luminescence of 2,3,4,5-Tetraphenylthiophene and 2,3,4,5-Tetraphenylfuran: A Strategy for Designing Pressure-Induced Emission Enhancement Materials.
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2020-01-13 , DOI: 10.1021/acs.jpclett.9b03592
Yarong Gu ₁ , Nan Li ₂ , Guicheng Shao ₁ , Kai Wang ₂ , Bo Zou ₂

Affiliation

Mechanoresponsive luminescent materials have attracted widespread attention for their potential applications, especially for these behaving pressure-induced emission enhancement (PIEE). Designing and seeking systems with high-efficiency PIEE are desirable and crucial for material science. Here, the mechanisms of different piezoresponsive luminescence of 2,3,4,5-tetraphenylthiophene (TPT) and 2,3,4,5-tetraphenylfuran (TPF) crystals are explored. The experimental results combined with density functional theory (DFT) theory calculation indicate that the PIEE phenomenon is possibly exhibited in V-shape arrangement for the reason of the weak π-π interactions. This study not only gains deep insight into the relationship between optical properties and structural evolution but also puts forward a strategy for designing PIEE materials from the point of molecular arrangement.

中文翻译：

2,3,4,5-四苯基噻吩和2,3,4,5-四苯基呋喃的不同压电响应发光的机理：设计压力诱导的发射增强材料的策略。

机械响应性发光材料因其潜在的应用而引起了广泛的关注，特别是对于表现出压力诱导的发射增强（PIEE）的应用。设计和寻找具有高效PIEE的系统对于材料科学而言是至关重要的，也是至关重要的。在这里，探讨了2,3,4,5-四苯基噻吩（TPT）和2,3,4,5-四苯基呋喃（TPF）晶体不同压电响应发光的机理。实验结果与密度泛函理论（DFT）理论计算相结合表明，由于π-π相互作用弱，PIEE现象可能呈V形排列。

更新日期：2020-01-14

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