Stretchable photo sensor based on graphene/perylene composite utilizing electrohydrodynamic fabrication technique

Shawkat Ali; Jinho Bae; Chong Hyun Lee

doi:10.1117/12.2184284

1 July 2015 Stretchable photo sensor based on graphene/perylene composite utilizing electrohydrodynamic fabrication technique

Shawkat Ali, Jinho Bae, Chong Hyun Lee

Author Affiliations +

Proceedings Volume 9655, Fifth Asia-Pacific Optical Sensors Conference; 96550F (2015) https://doi.org/10.1117/12.2184284
Event: Fifth Asia Pacific Optical Sensors Conference, 2015, Jeju, Korea, Republic of

Abstract

We propose a stretchable photo sensor fabricated on uniform ridged polydimethylsiloxane PDMS substrate through electro-hydrodynamic (EHD) technique. An active layer, perylene/graphene composite thin film (67nm) is sandwiched between top and bottom ITO electrodes. The electrical conductivity of the perylene is enhanced by blending with graphene. The photo sensor changes the terminal resistance from 108MΩ to 87MΩ against light intensity of 0~400lux, respectively. To verify a stretchability, the proposed photo sensor under mechanical strain of 25% is normally worked, and it is stretchable up to 50% strain, maximally. A mechanical bendability test is carried out by folding the device for 1000 endurance cycles, while there is no change in the electrical behavior.

Citation Download Citation

Shawkat Ali, Jinho Bae, and Chong Hyun Lee "Stretchable photo sensor based on graphene/perylene composite utilizing electrohydrodynamic fabrication technique", Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 96550F (1 July 2015); https://doi.org/10.1117/12.2184284

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