Studies of solid state electrochromic devices based on PEO/siliceous hybrids doped with lithium perchlorate

Abstract Sol–gel hybrid organic-inorganic networks, doped with a lithium salt, have been used as electrolytes in prototype smart windows. The work described in this presentation is focused on the application of these networks as dual-function electrolyte/adhesive components in solid-state electrochromic devices. The performance of multi-layer electrochromic devices was characterized as a function of the choice of precursor used to prepare the polymer electrolyte component and the guest salt concentration. The prototype devices exhibited good open-circuit memory, coloration efficiency, optical contrast and stability.

[1]  Pedro Gómez-Romero,et al.  Functional Hybrid Materials , 2004 .

[2]  C. Vincent,et al.  Polymer electrolyte reviews. 1 , 1987 .

[3]  M. Armand.  Charge transfer at polymer electrolytes , 1989 .

[4]  F. M. Gray.  Solid Polymer Electrolytes: Fundamentals and Technological Applications , 1991 .

[5]  M. Armand,et al.  Microscopic investigation of ionic conductivity in alkali metal salts-poly(ethylene oxide) adducts , 1983 .

[6]  P. Judeinstein,et al.  An “all gel” electrochromic device , 1988 .

[7]  P. Judeinstein,et al.  Hybrid organic–inorganic materials: a land of multidisciplinarity , 1996 .

[8]  E. Fortunato,et al.  New challenges on gallium-doped zinc oxide films prepared by r.f. magnetron sputtering , 2003 .

[9]  M. Silva,et al.  Thermal properties and ionic conductivities of lanthanide-based ormolytes , 2000 .

[10]  M. Silva,et al.  Di-ureasil ormolytes doped with Mg2+ ions: Part 1: Morphological, thermal and electrochemical properties , 2005 .

[11]  M. Silva,et al.  Preparation and characterization of a polymer electrolyte based on europium picrate , 2000 .

[12]  Peter V. Wright,et al.  Electrical conductivity in ionic complexes of poly(ethylene oxide) , 1975 .

[13]  Carlos Silva,et al.  Preparative effects on poly(ethylene oxide) based polymer electrolytes of lanthanide salts , 1995 .

[14]  P. V. Wright,et al.  Complexes of alkali metal ions with poly(ethylene oxide) , 1973 .

[15]  Michel Armand,et al.  Polymers with Ionic Conductivity , 1990 .

[16]  C. Lampert.  Chromogenic smart materials , 2004 .

[17]  Maria Manuela Silva,et al.  Sol–gel preparation of a di-ureasil electrolyte doped with lithium perchlorate , 2006 .

[18]  P. Judeinstein,et al.  All Sol-Gel Electrochromic Devices with Li+ Ionic Conductor, WO3 Electrochromic Films and SnO2 Counter-Electrode Films , 1998 .

[19]  M. Armand,et al.  Chemistry and physical properties of sulfamide and its derivatives:proton conducting materials , 1997 .

[20]  C. Brinker,et al.  Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing , 1990 .

[21]  Bruno Scrosati,et al.  Applications of electroactive polymers , 1993 .

[22]  B. Lebeau,et al.  Molecular design of hybrid organic-inorganic nanocomposites synthesized via sol-gel chemistry , 1999 .

[23]  Luís D. Carlos,et al.  Morphological and conductivity studies of di-ureasil xerogels containing lithium triflate , 2002 .