Fully 2D and 3D printed anisotropic mechanoluminescent objects and their application for energy harvesting in the dark

Dinesh K. Patel, Bat El Cohen, Lioz Etgar, Shlomo Magdassi

Research output: Contribution to journalArticlepeer-review

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.

Original languageAmerican English
Pages (from-to)708-714
Number of pages7
JournalMaterials Horizons
Volume5
Issue number4
DOIs
StatePublished - Jul 2018

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Electrical and Electronic Engineering
  • Process Chemistry and Technology
  • General Materials Science

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