Journal ArticleDOI
Fabrication of PbS quantum dot doped TiO2 nanotubes.
TLDR
PbS quantum dots were prepared on the inside and outside surfaces of TiO(2) nanotubes by using thiolactic acid as an organic linker and characterized by TEM, as well as Raman, FT-IR, and UV-vis spectroscopy.Abstract:
PbS quantum dots (PbS QDs) were prepared on the inside and outside surfaces of TiO2 nanotubes by using thiolactic acid as an organic linker. The sizes of PbS QDs were controlled by employing a dip coating process to anchor the PbS QDs onto the TiO2 nanotubes. The PbS QDs with diameters of 2−10 nm were obtained by adjusting the concentration of thiolactic acid. TiO2 nanotubes with PbS QDs located only inside the nanotubes were prepared by first coating the tubes with the double-chain cationic surfactant DDAB. The PbS QDs supported on TiO2 nanotubes were characterized by TEM, as well as Raman, FT-IR, and UV−vis spectroscopy.read more
Citations
More filters
Journal ArticleDOI
Hydrothermal synthesis of graphene-TiO 2 nanotube composites with enhanced photocatalytic activity
Sanjaya D. Perera,Ruperto G. Mariano,Khiem Vu,Nijem Nour,Oliver Seitz,Yves J. Chabal,Kenneth J. Balkus +6 more
TL;DR: In this paper, the photocatalytic performance of the reduced graphene oxide (hGO)-TNT composites was evaluated for the photodegradation of malachite green using X-ray diffraction (XRD), Raman, FTIR, and XPS analysis.
Journal ArticleDOI
Composite Titanium Dioxide Nanomaterials
Journal ArticleDOI
PbS and CdS Quantum Dot-Sensitized Solid-State Solar Cells: “Old Concepts, New Results”
Hyo Joong Lee,Henry C. Leventis,Soo-Jin Moon,Peter Chen,Seigo Ito,Seigo Ito,Saif A. Haque,Tomás Torres,Frank Nüesch,Thomas Geiger,Shaik M. Zakeeruddin,Michael Grätzel,Md. K. Nazeeruddin +12 more
TL;DR: In this article, the performance of lead sulfide and cadmium sulfide (CdS) quantum dots (QDs) was investigated in solid-state solar cells with 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylamine)-9,9′-spiro-OMeTAD+ cation.
Journal ArticleDOI
Probing the Optical Property and Electronic Structure of TiO2 Nanomaterials for Renewable Energy Applications
TL;DR: Probing the Optical Property and Electronic structure of TiO2 Nanomaterials for Renewable Energy Applications and its applications in renewable energy applications is studied.
Journal ArticleDOI
Porous photocatalysts for advanced water purifications
TL;DR: In this paper, a review of recent research progress towards the design and preparation of porous photocatalysts with prescribed structural, compositional, and morphological properties suitable for use in a photocatalysis reactor for water treatment via advanced oxidation processes is presented.
References
More filters
Journal ArticleDOI
Dye-Sensitized Solar Cells
TL;DR: Dye-sensitized solar cells (DSCs) offer the possibilities to design solar cells with a large flexibility in shape, color, and transparency as mentioned in this paper, and many DSC research groups have been established around the world.
Journal ArticleDOI
Highly Efficient Multiple Exciton Generation in Colloidal PbSe and PbS Quantum Dots
Randy J. Ellingson,Matthew C. Beard,Justin C. Johnson,Pingrong Yu,Olga I. Micic,Arthur J. Nozik,Andrew Shabaev,Alexander L. Efros +7 more
TL;DR: It is found that the biexciton effect, which shifts the transition energy for absorption of a second photon, influences the early time transient absorption data and may contribute to a modulation observed when probing near the lowest interband transition.
Journal ArticleDOI
Titania Nanotubes Prepared by Chemical Processing
TL;DR: In this paper, a method for the synthesis of needle-shaped titanium oxide (TiO2) nanotubes was proposed. But the method was not suitable for the case of amorphous raw materials, and it required the use of distilled water and HCl aqueous solution.
Journal ArticleDOI
CdS quantum dots sensitized TiO2 nanotube-array photoelectrodes.
TL;DR: Results clearly demonstrate that the unique nanotubes structure can facilitate the propagation and kinetic separation of photogenerated charges, suggesting potentially important applications of the inorganic QDs sensitized TiO2 nanotube-array films in solar cell applications.
Journal ArticleDOI
Trititanate nanotubes made via a single alkali treatment
TL;DR: A new type of crystalline trititanate nanotube (see Figure and inside front cover for a 3D drawing) has been synthesized in a single alkali treatment.
Related Papers (5)
Electrochemical Photolysis of Water at a Semiconductor Electrode
Akira Fujishima,Kenichi Honda +1 more