Spray coated ultrathin films from aqueous tungsten molybdenum oxide nanoparticle ink for high contrast electrochromic applications

Ultrathin tungsten molybdenum oxide nanoparticle films were fabricated from aqueous ink by a spray coating technique. With the in situ heating of the hot plate during the spray coating process, the detrimental effects of oxygen vacancies on electrochromic (EC) materials could be eliminated. The spray coated ultrathin films exhibit higher contrast than the drop casted films, which would provide a versatile and promising platform for energy-saving smart (ESS) windows, batteries, and other applications.

[1]  Zhigang Zhao,et al.  Single‐Crystalline Tungsten Oxide Quantum Dots for Fast Pseudocapacitor and Electrochromic Applications , 2014, Advanced materials.

[2]  Ryan D. Williams,et al.  Cathodic electrodeposition of mixed molybdenum tungsten oxides from peroxo-polymolybdotungstate solutions. , 2006, Langmuir : the ACS journal of surfaces and colloids.

[3]  Chaoyi Yan,et al.  Green synthesis of nanobelt-membrane hybrid structured vanadium oxide with high electrochromic contrast , 2014 .

[4]  T. Ivanova,et al.  A Low‐Temperature Atmospheric Pressure CVD Process for Growing Thin Films of MoO3 and MoO3‐WO3 for Electrochromic Device Applications , 2006 .

[5]  Xuehong Lu,et al.  Layer-by-Layer Assembly of PEDOT:PSS and WO3 Nanoparticles: Enhanced Electrochromic Coloration Efficiency and Mechanism Studies by Scanning Electrochemical Microscopy , 2015 .

[6]  Shu-Hong Yu,et al.  Ultrathin W18O49 nanowire assemblies for electrochromic devices. , 2013, Nano letters.

[7]  Jian Zhen Ou,et al.  High performance electrochromic devices based on anodized nanoporous Nb2O5 , 2014 .

[8]  A. Rougier,et al.  Comparative investigation of the Ti and Mo additives influence on the opto-electronic properties of the spray deposited WO3 thin films , 2015 .

[9]  Jinmin Wang,et al.  Synthesis, Assembly, and Electrochromic Properties of Uniform Crystalline WO3 Nanorods , 2008 .

[10]  Wei Xiao,et al.  Na2SO4-assisted synthesis of hexagonal-phase WO3 nanosheet assemblies with applicable electrochromic and adsorption properties , 2013 .

[11]  Hongzhi Wang,et al.  Morphology-tailored synthesis of vertically aligned 1D WO3 nano-structure films for highly enhanced electrochromic performance , 2013 .

[12]  J. Macák,et al.  High-contrast electrochromic switching using transparent lift-off layers of self-organized TiO2 nanotubes. , 2008, Small.

[13]  Hongzhi Wang,et al.  Self-weaving WO3 nanoflake films with greatly enhanced electrochromic performance , 2012 .

[14]  Lingyu Kong,et al.  Detrimental Effects of Oxygen Vacancies in Electrochromic Molybdenum Oxide , 2015 .

[15]  Jinmin Wang,et al.  Flower-like nickel oxide micro/nanostructures: synthesis and enhanced electrochromic properties , 2015 .

[16]  M. Deepa,et al.  A poly(3,4-ethylenedioxypyrrole)-Au@WO3 -based electrochromic pseudocapacitor. , 2015, Chemphyschem : a European journal of chemical physics and physical chemistry.

[17]  A Paul Alivisatos,et al.  Tunable localized surface plasmon resonances in tungsten oxide nanocrystals. , 2012, Journal of the American Chemical Society.

[18]  F. Zheng,et al.  Effect of substrate pre-treatment on controllable synthesis of hexagonal WO3 nanorod arrays and their electrochromic properties , 2013 .

[19]  S. Yoshikawa,et al.  Fabrication of efficient organic and hybrid solar cells by fine channel mist spray coating , 2014 .

[20]  Chaoyi Yan,et al.  High-efficiency transfer of percolating nanowire films for stretchable and transparent photodetectors. , 2014, Nanoscale.

[21]  Rujia Zou,et al.  Hydrophilic molybdenum oxide nanomaterials with controlled morphology and strong plasmonic absorption for photothermal ablation of cancer cells. , 2014, ACS applied materials & interfaces.

[22]  Yung‐Sen Lin,et al.  Enhanced lithium electrochromism of atmospheric pressure plasma jet-synthesized tungsten/molybdenum oxide films for flexible electrochromic devices , 2013, Journal of Solid State Electrochemistry.

[23]  B. Pan,et al.  High-performance flexible electrochromic device based on facile semiconductor-to-metal transition realized by WO3·2H2O ultrathin nanosheets , 2013, Scientific Reports.

[24]  Jinmin Wang,et al.  Construction of hydrated tungsten trioxide nanosheet films for efficient electrochromic performance , 2015 .

[25]  N. Vuong,et al.  Electrochromic properties of porous WO3–TiO2 core–shell nanowires , 2013 .

[26]  Hongzhi Wang,et al.  Controllable growth of high-quality metal oxide/conducting polymer hierarchical nanoarrays with outstanding electrochromic properties and solar-heat shielding ability , 2014 .

[27]  Hiromi Yamashita,et al.  Surfactant-free nonaqueous synthesis of plasmonic molybdenum oxide nanosheets with enhanced catalytic activity for hydrogen generation from ammonia borane under visible light. , 2014, Angewandte Chemie.

[28]  D. Acosta,et al.  Improving electrochromic behavior of spray pyrolised WO3 thin solid films by Mo doping , 2011 .

[29]  Arnan Mitchell,et al.  Nanostructured Tungsten Oxide – Properties, Synthesis, and Applications , 2011 .

[30]  Bobby To,et al.  Crystalline WO3 Nanoparticles for Highly Improved Electrochromic Applications , 2006 .

[31]  Rui-Tao Wen,et al.  Eliminating degradation and uncovering ion-trapping dynamics in electrochromic WO3 thin films , 2015, Nature materials.

[32]  P. Li,et al.  Large-scale self-assembled zirconium phosphate smectic layers via a simple spray-coating process , 2014, Nature Communications.

[33]  J. Tu,et al.  Enhanced electrochromic performance of macroporous WO3 films formed by anodic oxidation of DC-sputtered tungsten layers , 2010 .

[34]  Jinmin Wang,et al.  Controlled synthesis of WO3 nanorods and their electrochromic properties in H2SO4 electrolyte , 2009 .

[35]  S. Zhuiykov,et al.  The anodized crystalline WO3 nanoporous network with enhanced electrochromic properties. , 2012, Nanoscale.

[36]  J. Amici,et al.  WO3 nanorolls self-assembled as thin films by hydrothermal synthesis. , 2015, Nanoscale.

[37]  So Yeon Park,et al.  Colloidal approach for tungsten oxide nanorod-based electrochromic systems with highly improved response times and color efficiencies , 2009 .

[38]  Joseph J. Richardson,et al.  Technology-driven layer-by-layer assembly of nanofilms , 2015, Science.

[39]  Haizeng Li,et al.  Self-seeded growth of nest-like hydrated tungsten trioxide film directly on FTO substrate for highly enhanced electrochromic performance , 2014 .

[40]  Pooi See Lee,et al.  Self-assembled polymer layers of linear polyethylenimine for enhancing electrochromic cycling stability , 2013 .

[41]  Pooi See Lee,et al.  Enhanced Electrochromism with Rapid Growth Layer‐by‐Layer Assembly of Polyelectrolyte Complexes , 2015 .

[42]  A. Szekeres,et al.  Crystallization of chemically vapor deposited molybdenum and mixed tungsten/molybdenum oxide films for electrochromic application , 2007 .