Fully 2D and 3D printed anisotropic mechanoluminescent objects and their application for energy harvesting in the dark. Issue 4 (29th May 2018)

• Record Type: Journal Article
• Authors: Patel, Dinesh K.; Cohen, Bat-El; Etgar, Lioz; Magdassi, Shlomo
• Is Part Of: Materials horizons. Volume 5:Issue 4(2018)
• Page Start: 708
• Page End: 714
• Publication Date: 2018-05-29
• Subjects: Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c8mh00296g
• Languages: English
• ISSNs: 2051-6347

Abstract

Abstract : We report on new material compositions enabling fully printed mechanoluminescent 3D devices by using a one-step direct write 3D printing technology. Abstract : We report on new material compositions enabling fully printed mechanoluminescent 3D devices by using a one-step direct write 3D printing technology. The ink is composed of PDMS, transition metal ion-doped ZnS particles, and a platinum curing retarder that enables a long open time for the printing process. 3D printed mechanoluminescent multi-material objects with complex structures were fabricated, in which light emission results from stretching or wind blowing. The multi-material printing yielded anisotropic light emission upon compression from different directions, enabling its use as a directional strain and pressure sensor. The mechanoluminescent light emission peak was tailored to match that of a perovskite material, and therefore, enabled the direct conversion of wind power in the dark into electricity, by linking the printed device to perovskite-based solar cells.