Camposeo Andrea, D'Elia Francesca, Portone Alberto, Matino Francesca, Archimi Matteo, Conti Silvia, Fiori Gianluca, Pisignano Dario, Persano Luana
NEST Istituto Nanoscienze-CNR Piazza S. Silvestro 12 Pisa I-56127 Italy.
NEST Scuola Normale Superiore Piazza S. Silvestro 12 Pisa I-56127 Italy.
Adv Sci (Weinh). 2020 Sep 4;7(20):2001594. doi: 10.1002/advs.202001594. eCollection 2020 Oct.
Combined dry-wet transient materials and devices are introduced, which are based on water-dissolvable dye-doped polymers layered onto nonpolar cyclic hydrocarbon sublimating substrates. Light-emitting heterostructures showing amplified spontaneous emission are obtained on transient elements and used as illumination sources for speckle-free, full-field imaging, and transient optical labels are realized that incorporate QR-codes with stably encoded information. The transient behavior is also studied at the microscopic scale, highlighting the real-time evolution of material domains in the sublimating compound. Finally, the exhausted components are fully soluble in water thus being naturally degradable. This technology opens new and versatile routes for environmental sensing, storage conditions monitoring, and organic photonics.
介绍了干湿瞬态材料与器件，它们基于涂覆在非极性环状烃升华衬底上的水溶性染料掺杂聚合物。在瞬态元件上获得了显示出放大自发发射的发光异质结构，并将其用作无散斑全场成像的照明源，还实现了包含具有稳定编码信息的二维码的瞬态光学标签。还在微观尺度上研究了瞬态行为，突出了升华化合物中材料域的实时演变。最后，耗尽的组件完全可溶于水，因此可自然降解。该技术为环境传感、储存条件监测和有机光子学开辟了新的通用途径。
