Hybrid materials based on conducting polymers (CPs) and inorganic semiconductors
(SCs) undoubtedly constitute one of the most promising classes of new materials. Beyond
scientific and fundamental interest, such hybrid assemblies are attractive from technological
perspectives as well, for example, in energy conversion & storage, electronics, catalysis, and
optics. CPs can be employed both as sensitizers and hole-transporters in such applications. In
this vein we assemble organized nanoarchitectures of CPs and oxide SCs.
(SCs) undoubtedly constitute one of the most promising classes of new materials. Beyond
scientific and fundamental interest, such hybrid assemblies are attractive from technological
perspectives as well, for example, in energy conversion & storage, electronics, catalysis, and
optics. CPs can be employed both as sensitizers and hole-transporters in such applications. In
this vein we assemble organized nanoarchitectures of CPs and oxide SCs.
Photoactive hybrid organic/inorganic assemblies based on conducting polymers
CPs are p-type semiconductors, therefore they can be used in photoelectrochemical reduction. We are studying various
energy related reactions in this manner, such as reduction of molecular O2. For example, the case of the PEDOT/iron-oxalate
layer, cathodic photocurrents showed a defined trend in correlation with the quantity of dissolved oxygen which can be exploited
in sensors.
We are assembling p/n heterojunctions of inorganic oxide SCs and CPs with organized nanoscale architecture.
Electrochemical anodization is employed to fabricate the nanostructured oxide hosts (TiO2, WO3, Nb2O5, V2O5).
Subsequently, both electrochemical and photoelectrochemical synthetic strategies can be deployed to obtain CP inside the
nanostructured host. Further, we aim to achieve fine tuning of the composition and structure of the hybrid assemblies, and thus
tailor the properties of the hybrid nanoarchitectures towards different applications.
References:
Photo-electrochemical sensor for dissolved oxygen, based on a poly(3,4-ethylenedioxythiophene)/iron oxalate
hybrid electrode
Bencsik G, Lukacs Z, Visy C , ANALYST Volume: 135 Issue: 2 Pages: 375-380
Electrochemical Grafting of Poly(3,4-ethylenedioxythiophene) into a Titanium Dioxide Nanotube Host Network
Janaky C, Bencsik G, Racz A, et al., LANGMUIR Volume: 26 Issue: 16 Pages: 13697-13702 2010
Electrodeposited Polyaniline in a Nanoporous WO3 Matrix: An Organic/Inorganic Hybrid Exhibiting Both p- and n-
Type Photoelectrochemical Activity
Janáky C, de Tacconi NR, Chanmanee W, Rajeshwar K, JOURNAL OF PHYSICAL CHEMISTRY C Volume 116 Pages
4234-4242
Bringing Conjugated Polymers and Oxide Nanoarchitectures into Intimate Contact: Light Induced
Electrodeposition of Polypyrrole and Polyaniline on Nanoporous WO3 or TiO2 Nanotube Arrays
Janáky C, de Tacconi NR, Chanmanee W, Rajeshwar K, JOURNAL OF PHYSICAL CHEMISTRY C
Volume 116 Pages 19145-19155
energy related reactions in this manner, such as reduction of molecular O2. For example, the case of the PEDOT/iron-oxalate
layer, cathodic photocurrents showed a defined trend in correlation with the quantity of dissolved oxygen which can be exploited
in sensors.
We are assembling p/n heterojunctions of inorganic oxide SCs and CPs with organized nanoscale architecture.
Electrochemical anodization is employed to fabricate the nanostructured oxide hosts (TiO2, WO3, Nb2O5, V2O5).
Subsequently, both electrochemical and photoelectrochemical synthetic strategies can be deployed to obtain CP inside the
nanostructured host. Further, we aim to achieve fine tuning of the composition and structure of the hybrid assemblies, and thus
tailor the properties of the hybrid nanoarchitectures towards different applications.
References:
Photo-electrochemical sensor for dissolved oxygen, based on a poly(3,4-ethylenedioxythiophene)/iron oxalate
hybrid electrode
Bencsik G, Lukacs Z, Visy C , ANALYST Volume: 135 Issue: 2 Pages: 375-380
Electrochemical Grafting of Poly(3,4-ethylenedioxythiophene) into a Titanium Dioxide Nanotube Host Network
Janaky C, Bencsik G, Racz A, et al., LANGMUIR Volume: 26 Issue: 16 Pages: 13697-13702 2010
Electrodeposited Polyaniline in a Nanoporous WO3 Matrix: An Organic/Inorganic Hybrid Exhibiting Both p- and n-
Type Photoelectrochemical Activity
Janáky C, de Tacconi NR, Chanmanee W, Rajeshwar K, JOURNAL OF PHYSICAL CHEMISTRY C Volume 116 Pages
4234-4242
Bringing Conjugated Polymers and Oxide Nanoarchitectures into Intimate Contact: Light Induced
Electrodeposition of Polypyrrole and Polyaniline on Nanoporous WO3 or TiO2 Nanotube Arrays
Janáky C, de Tacconi NR, Chanmanee W, Rajeshwar K, JOURNAL OF PHYSICAL CHEMISTRY C
Volume 116 Pages 19145-19155
