Home About us Contact
|
Home About us Contact | ||
|
|
||
Incident Photon (incident + photon)
Selected AbstractsPhotosensitization of TiO2 Nanostructures with CdS Quantum Dots: Particulate versus Tubular Support ArchitecturesADVANCED FUNCTIONAL MATERIALS, Issue 5 2009David R. Baker Abstract TiO2 nanotube arrays and particulate films are modified with CdS quantum dots with an aim to tune the response of the photoelectrochemical cell in the visible region. The method of successive ionic layer adsorption and reaction facilitates size control of CdS quantum dots. These CdS nanocrystals, upon excitation with visible light, inject electrons into the TiO2 nanotubes and particles and thus enable their use as photosensitive electrodes. Maximum incident photon to charge carrier efficiency (IPCE) values of 55% and 26% are observed for CdS sensitized TiO2 nanotube and nanoparticulate architectures respectively. The nearly doubling of IPCE observed with the TiO2 nanotube architecture is attributed to the increased efficiency of charge separation and transport of electrons. [source] Dye-Sensitized Back-Contact Solar CellsADVANCED MATERIALS, Issue 38 2010Dongchuan Fu Dye-sensitized back-contact solar cells are fabricated on back plates comprising a patterned FTO glass substrate, a selectively deposited Pt coating, a protective ZrO2 coating covering the Pt layers and a screen printed TiO2 film. Such devices show a solar energy conversion efficiency of 3.64% under AM 1.5 sunlight and a peak incident photon to electron conversion efficiency of 54%. [source] Efficient Hybrid Solar Cells from Zinc Oxide Nanoparticles and a Conjugated Polymer,ADVANCED MATERIALS, Issue 12 2004ZnO nanoparticles dispersed in a semiconducting polymer form the active layer of a solar cell (see Figure) that is able to convert up to 40,% of the incident photons at 500,nm into electrical current and has a power conversion efficiency of about 1.5,% in sunlight. Manufactured at low temperature using environmentally friendly materials, it represents a new step to ,green electricity'. [source] A new approach to measuring high-resolution magnetic Compton profilesJOURNAL OF SYNCHROTRON RADIATION, Issue 2 2006H. Kawata It is demonstrated that long-term stability in the polarization of incident photons delivered from an insertion device makes it possible to measure magnetic Compton profiles with a momentum resolution of 0.15 atomic units or better, without employing a solid-state detector and the traditional method of reversing the external magnetic field or the handedness of the polarization of incident photons in an asynchronous cycle with a short period of tens to hundreds of seconds. [source] | ||||||||||