Vapour sensitivity of an ALD hierarchical photonic structure inspired by Morpho

The unique architecture of iridescent Morpho butterfly scales is known to exhibit different optical responses to various vapours. However, the mechanism behind this phenomenon is not fully quantitatively understood. This work reports on process developments in the micro-fabrication of a Morpho-inspired photonic structure in atomic layer deposited (ALD) materials in order to investigate the vapour optical sensitivity of such artificial nanostructures. By developing recipes for dry and wet etching of ALD oxides, we micro-fabricated two structures: one combining Al2O3 and TiO2, and the other combining Al2O3 and HfO2. For the first time, we report the optical response of such ALD Morpho-like structures measured under a controlled flow of either ethanol or isopropyl alcohol (IPA) vapour. In spite of the small magnitude of the effect, the results show a selective vapour response (depending on the materials used).

[1]  R. Wootton,et al.  Quantified interference and diffraction in single Morpho butterfly scales , 1999, Proceedings of the Royal Society of London. Series B: Biological Sciences.

[2]  L. Canham,et al.  Vapor sensing using the optical properties of porous silicon Bragg mirrors , 1999 .

[3]  Shuichi Kinoshita,et al.  Wavelength–selective and anisotropic light–diffusing scale on the wing of the Morpho butterfly , 2004, Proceedings of the Royal Society of London. Series B: Biological Sciences.

[4]  Takayuki Hoshino,et al.  Brilliant Blue Observation from a Morpho-Butterfly-Scale Quasi-Structure , 2004 .

[5]  Zhong Lin Wang,et al.  Controlled replication of butterfly wings for achieving tunable photonic properties. , 2006, Nano letters.

[6]  Radislav A. Potyrailo,et al.  Morpho butterfly wing scales demonstrate highly selective vapour response , 2007 .

[7]  R. Coath.  Investigating the Use of Replica Morpho Butterfly Scales for Colour Displays , 2007 .

[8]  Ye Cai,et al.  3D rutile titania-based structures with morpho butterfly wing scale morphologies. , 2008, Angewandte Chemie.

[9]  Zs. Bálint,et al.  Photonic nanoarchitectures occurring in butterfly scales as selective gas/vapor sensors , 2008, Optical Engineering + Applications.

[10]  Di Zhang,et al.  A simple and effective approach towards biomimetic replication of photonic structures from butterfly wings , 2009, Nanotechnology.

[11]  Di Zhang,et al.  Synthesis of Cu-doped WO3 materials with photonic structures for high performance sensors , 2010 .

[12]  Te-Hua Fang,et al.  Replication of butterfly wing microstructures using molding lithography , 2010 .

[13]  J. Baumberg,et al.  Mimicking the colourful wing scale structure of the Papilio blumei butterfly. , 2010, Nature nanotechnology.

[14]  Tielin Shi,et al.  Using hierarchy architecture of Morpho butterfly scales for chemical sensing: Experiment and modeling , 2011 .

[15]  Wangzhou Shi,et al.  Replication of homologous optical and hydrophobic features by templating wings of butterflies Morpho menelaus , 2011 .

[16]  Sébastien R Mouchet,et al.  Unexplained high sensitivity of the reflectance of porous natural photonic structures to the presence of gases and vapours in the atmosphere , 2012, Photonics Europe.

[17]  Di Zhang,et al.  3D Network Magnetophotonic Crystals Fabricated on Morpho Butterfly Wing Templates , 2012 .

[18]  Rene Lopez,et al.  Large area nanofabrication of butterfly wing's three dimensional ultrastructures , 2012 .

[19]  Radislav A. Potyrailo,et al.  Towards high-speed imaging of infrared photons with bio-inspired nanoarchitectures , 2012 .

[20]  Feng Liu,et al.  Hybrid structures and optical effects in Morpho scales with thin and thick coatings using an atomic layer deposition method , 2013 .

[21]  Juerg Leuthold,et al.  Theoretical and experimental analysis of the structural pattern responsible for the iridescence of Morpho butterflies. , 2013, Optics express.

[22]  Peter Vukusic,et al.  Discovery of the surface polarity gradient on iridescent Morpho butterfly scales reveals a mechanism of their selective vapor response , 2013, Proceedings of the National Academy of Sciences.

[23]  Tielin Shi,et al.  Gas sensing using hierarchical micro/nanostructures of Morpho butterfly scales , 2014 .

[24]  Di Zhang,et al.  Demonstration of higher colour response with ambient refractive index in Papilio blumei as compared to Morpho rhetenor , 2014, Scientific Reports.

[25]  Di Zhang,et al.  Enhanced methanol oxidation performance on platinum with butterfly-scale architectures: toward structural design of efficient electrocatalysts , 2014 .

[26]  L. Francis,et al.  Highly transparent low capacitance plasma enhanced atomic layer deposition Al2O3-HfO2 tunnel junction engineering , 2014 .

[27]  Uli Lemmer,et al.  Utilizing laser interference lithography to fabricate hierarchical optical active nanostructures inspired by the blue Morpho butterfly , 2014, Optics & Photonics - Optical Engineering + Applications.

[28]  Yifang Chen,et al.  Nanofabrication and coloration study of artificial Morpho butterfly wings with aligned lamellae layers , 2015, Scientific Reports.

[29]  Radislav A. Potyrailo,et al.  Towards outperforming conventional sensor arrays with fabricated individual photonic vapour sensors inspired by Morpho butterflies , 2015, Nature Communications.

[30]  O. Poncelet,et al.  Synthesis of bio-inspired multilayer polarizers and their application to anti-counterfeiting , 2015, Bioinspiration & biomimetics.