TY - JOUR
T1 - Colloidal Photonic Crystal Strain Sensor Integrated with Deformable Graphene Phototransducer
AU - Snapp, Peter
AU - Kang, Pilgyu
AU - Leem, Juyoung
AU - Nam, Sung Woo
N1 - Funding Information:
This work was supported by a NASA Space Technology Research Fellowship (Grant No. NNX16AM69H, P. Snapp). S.N. gratefully acknowledges support from the NASA ECF (Grant No. NNX16AR56G), ONR (Grant No. N00014-17-1-2830), NSF (Grant Nos MRSEC DMR-1720633, DMR-1708852, and CMMI-1554019), and AFOSR (Grant Nos FA9550-16-1-0251 and FA2386-17-1-4071). Experiments were carried out in part in the Illinois Materials Research Laboratory Central Research Facilities, University of Illinois, Micro and Nano Technology Laboratory, and the Beckman Institute Imaging Technology Group at the University of Illinois at Urbana?Champaign.
Publisher Copyright:
© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2019/8
Y1 - 2019/8
N2 - Flexible, architectured, photonic nanostructures such as colloidal photonic crystals (CPCs) can serve as colorimetric strain sensors, where external applied strain leads to a noticeable color change. However, CPCs' response to strain is difficult to quantify without the use of optical spectroscopy. Integration of flexible electrical readout of CPCs' color change is a challenge due to a lack of flexible/stretchable electrical transducers. This work details a colorimetric strain sensor with optoelectrical quantification based on an integrated system of CPCs over a crumpled graphene phototransducer, which optoelectrically quantifies CPCs, response to strain. The hybrid system enables direct visual perception of strain, while strain quantification via electrical measurement of the hybrid system outperforms that of crumpled graphene strain sensors by more than 100 times. The unique combination of a photonic sensing element with a deformable transducer will allow for the development of novel, electrically quantifiable colorimetric sensors with high sensitivity.
AB - Flexible, architectured, photonic nanostructures such as colloidal photonic crystals (CPCs) can serve as colorimetric strain sensors, where external applied strain leads to a noticeable color change. However, CPCs' response to strain is difficult to quantify without the use of optical spectroscopy. Integration of flexible electrical readout of CPCs' color change is a challenge due to a lack of flexible/stretchable electrical transducers. This work details a colorimetric strain sensor with optoelectrical quantification based on an integrated system of CPCs over a crumpled graphene phototransducer, which optoelectrically quantifies CPCs, response to strain. The hybrid system enables direct visual perception of strain, while strain quantification via electrical measurement of the hybrid system outperforms that of crumpled graphene strain sensors by more than 100 times. The unique combination of a photonic sensing element with a deformable transducer will allow for the development of novel, electrically quantifiable colorimetric sensors with high sensitivity.
KW - colloidal photonic crystals
KW - colorimetric
KW - crumpling
KW - graphene
KW - strain
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U2 - 10.1002/adfm.201902216
DO - 10.1002/adfm.201902216
M3 - Article
AN - SCOPUS:85067366287
VL - 29
JO - Advanced Functional Materials
JF - Advanced Functional Materials
SN - 1616-301X
IS - 33
M1 - 1902216
ER -