Versatile Method of Generating Triboluminescence in Polymer Films Blended with Common Luminophores

Herein we report a versatile method for the preparation
of triboluminescent
polymer films by physical blending with common luminophores. This
method does not require the presence of a crystalline phase or the
use of materials known to be triboluminescent. Emission is generated
in response to friction of the polymer surface via triboelectrification,
either by rubbing directly or through an inert coating layer, even
with low applied stress (<0.1 MPa). Our findings offer a convenient
and practical method of preparation of triboluminescent, amorphous
polymer films with easily tunable emission properties.

本文报道了一种通过与常见发光体（luminophores）物理共混制备摩擦发光（triboluminescent）聚合物薄膜的通用方法。该方法无需引入晶相，也无需使用已知具备摩擦发光特性的材料。该体系可通过摩擦起电（triboelectrification）机制响应聚合物表面的摩擦作用产生发光，既可直接摩擦聚合物表面，也可通过惰性涂层间接施加摩擦，且仅需极低的施加应力（<0.1 MPa）即可实现。本研究成果为制备摩擦发光型无定形聚合物薄膜提供了一种便捷实用的路径，且该薄膜的发光性能可灵活调控。