Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 7608-7611 |
| Number of pages | 4 |
| Journal | Journal of the American Chemical Society |
| Volume | 134 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 2012 |
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Printable optical sensors based on H-bonded supramolecular cholesteric liquid crystal networks. / Herzer, N.; Guneysu, H; Davies, D.J.D.; Yildirim, D.; Vaccaro, A.R.; Broer, D.J.; Bastiaansen, C.W.M.; Schenning, A.P.H.J.
In: Journal of the American Chemical Society, Vol. 134, No. 18, 2012, p. 7608-7611.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - Printable optical sensors based on H-bonded supramolecular cholesteric liquid crystal networks
AU - Herzer, N.
AU - Guneysu, H
AU - Davies, D.J.D.
AU - Yildirim, D.
AU - Vaccaro, A.R.
AU - Broer, D.J.
AU - Bastiaansen, C.W.M.
AU - Schenning, A.P.H.J.
PY - 2012
Y1 - 2012
N2 - A printable H-bonded cholesteric liquid crystal (CLC) polymer film has been fabricated that, after conversion to a hygroscopic polymer salt film, responds to temperature and humidity by changing its reflection color. Fast-responding humidity sensors have been made in which the reflection color changes between green and yellow depending on the relative humidity. The change in reflection band is a result of a change in helix pitch in the film due to absorption and desorption of water, resulting in swelling/deswelling of the film material. When the polymer salt was saturated with water, a red-reflecting film was obtained that can potentially act as a time/temperature integrator. Finally, the films were printed on a foil, showing the potential application of supramolecular CLC materials as low-cost, printable, battery-free optical sensors.
AB - A printable H-bonded cholesteric liquid crystal (CLC) polymer film has been fabricated that, after conversion to a hygroscopic polymer salt film, responds to temperature and humidity by changing its reflection color. Fast-responding humidity sensors have been made in which the reflection color changes between green and yellow depending on the relative humidity. The change in reflection band is a result of a change in helix pitch in the film due to absorption and desorption of water, resulting in swelling/deswelling of the film material. When the polymer salt was saturated with water, a red-reflecting film was obtained that can potentially act as a time/temperature integrator. Finally, the films were printed on a foil, showing the potential application of supramolecular CLC materials as low-cost, printable, battery-free optical sensors.
U2 - 10.1021/ja301845n
DO - 10.1021/ja301845n
M3 - Article
C2 - 22519954
VL - 134
SP - 7608
EP - 7611
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 18
ER -