Zinna Francesco, Albano Gianluigi, Taddeucci Andrea, Colli Tony, Aronica Laura Antonella, Pescitelli Gennaro, Di Bari Lorenzo
Dipartimento di Chimica e Chimica Indistriale, Università Di Pisa, via Moruzzi 13, Pisa, 56124, Italy.
CISUP, Centro per l'Integrazione della Strumentazione dell'Università di Pisa, Lungarno Pacinotti 43, Pisa, 56126, Italy.
Adv Mater. 2020 Sep;32(37):e2002575. doi: 10.1002/adma.202002575. Epub 2020 Jul 30.
Controlling circularly polarized (CP) emission is key for both fundamental understanding and applications in the field of chiral photonics and electronics. Here, a completely new way to achieve this goal is presented. A luminescent thin film, made from a chiral conjugated phenylene bis-thiophenylpropynone able to self-assemble into ordered structures, emits highly circularly polarized light with opposite handedness from its two opposite faces. Such emergent nonreciprocal behavior in CP emission, so far unprecedented, represents a fundamental advance, opening new opportunities in design, preparation, and applications of CP emitting materials.
控制圆偏振（CP）发射对于手性光子学和电子学领域的基础理解及应用而言至关重要。在此，提出了一种全新的方法来实现这一目标。一种由能够自组装成有序结构的手性共轭亚苯基双噻吩基丙炔酮制成的发光薄膜，从其两个相对的面发射出手性相反的高度圆偏振光。这种在CP发射中出现的非互易行为，迄今为止尚无先例，代表了一项重大进展，为CP发射材料的设计、制备及应用开辟了新机遇。
