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Sibley School of Mechanical and Aerospace Engineering

New article: A Stretchable Multicolor Display and Touch Interface Using Photopatterning and Transfer Printing

Article:  Li, S; Peele, BN; Larson, CM; Zhao, HC; Shepherd, RF; “A Stretchable Multicolor Display and Touch Interface Using Photopatterning and Transfer Printing”, Advanced Materials, 28 (44): 9770-+


Abstract:  An intrinsically soft and stretchable multicolor display and touch interface is reported. Red, green, and blue pixels are formed separately by photopatterning transition-metal-doped ZnS embedded in silicone gels and transfer printing onto an elastomeric dielectric sheet. The device shows stable illumination while being stretched up to 200% area strain or under different deformation modalities. It also introduces capabilities for dynamic colorations and multi-point capacitive touch sensing.

Funding Acknowledgement:  Army Research Office [W911NF-15-1-0464]; NSF Graduate Research Fellowship [DGE-1144153]; National Science Foundation [ECCS-1542081]; Cornell Center for Materials Research Shared Facilities; NSF MRSEC program [DMR-1120296]

Funding Text:  This work was supported by the Army Research Office (Grant W911NF-15-1-0464) and an NSF Graduate Research Fellowship (Grant DGE-1144153). Part of the study was performed at the Cornell NanoScale Facility, a member of the National Nanotechnology Coordinated Infrastructure (NNCI), which is supported by the National Science Foundation (Grant ECCS-1542081) and Cornell Center for Materials Research Shared Facilities, which is supported through the NSF MRSEC program (DMR-1120296). The authors would like to thank Naigeng Chen for assistance with the tensile test, as well as Mick Thomas and John Grazul for assistance with the SEM facility. The fabrication method for stretchable multicolor electroluminescent display presented in this work has been filed under a provisional patent application, No. 62/317, 834 for Stretchable Electroluminescent Devices and Methods of Making and Using the Same. The listed inventors are Chris Larson, Shuo Li, Bryan Peele, Sanlin Robinson, and Robert Shepherd.

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