@article {58920, title = {Modeling of optical and energy performance of tungsten-oxide-based electrochromic windows including their intermediate states}, journal = {Solar Energy Materials and Solar Cells}, volume = {108}, year = {2013}, month = {1/2013}, pages = {129 - 135}, abstract = {

Tungsten-oxide-based electrochromic (EC) windows are currently the most robust and matured dynamic windows where the transmittance of visual light and near-infrared radiation can be controlled by a small applied voltage. In its standard application, the window is commonly either in its clear or colored state. In this contribution, we study the optical and energy performance of such window in the fully bleached and fully colored state as well as when it is kept in intermediate states. Different configurations in terms of placement of the EC layer stack and possible additional low-emissivity (low-E) coating within the insulated glass unit are considered. Using optical data and software tools we find that even a small coloration has a significant effect on the energy performance because the solar heat gain coefficient is readily reduced by the absorption of the EC layer stack. We compare the performance of the EC windows to commercially available solar-control (spectrally selective) low-E windows.

}, keywords = {Electrochromic windows, Energy efficient window modeling, Energy simulation, Smart windows}, issn = {09270248}, doi = {10.1016/j.solmat.2012.09.010}, author = {Sunnie H.N. Lim and Jan Isidorsson and Lizhong Sun and B. Leo Kwak and Andr{\'e} Anders} } @article {12067, title = {Metal plasmas for the fabrication of nanostructures}, journal = {J. Phys. D: Appl. Phys.}, year = {2006}, abstract = {

A review is provided covering metal plasma production, the energetic condensation of metal plasmas, and the formation of nanostructures using such plasmas. Plasma production techniques include pulsed laser ablation, filtered cathodic arcs, and various forms of ionized physical vapor deposition, namely magnetron sputtering with ionization of sputtered atoms in radio frequency discharges, self-sputtering, and high power impulse magnetron sputtering. The discussion of energetic condensation focuses on the control of kinetic energy by biasing and also includes considerations of the potential energy and the processes occurring at subplantation and implantation. In the final section on nanostructures, two different approaches are discussed. In the top-down approach, the primary nanostructures are lithographically produced and metal plasma is used to coat or fill trenches and vias. Additionally, multilayers with nanosize periods (nanolaminates) can be produced. In the bottom-up approach, thermodynamic forces are used to fabricate nanocomposites and nanoporous materials by decomposition and dealloying.

}, author = {Andr{\'e} Anders} } @techreport {58287, title = {Materials, processes, and issues in low-emissivity and solar control coatings}, year = {2002}, month = {12/2002}, abstract = {

Research at DOE and other laboratories can help addressing the durability, performance, and cost issues associated with the energy-saving coatings on glass used in windows of residential and commercial buildings. A brief review is presented on the status of energy-savings coatings, including material systems and processes to manufacture them. Issues such as durability, enhanced performance, dynamic coatings, and multifunctional coatings are considered. Industry and the Department of Energy have overlapping areas of interest, and therefore laboratories should and can have a role in energy-savings research and development of industrial relevance. The report includes specific recent results obtained at Berkeley Lab. It is argued that the properties of ultrathin silver films are determined both by the kinetics of the deposition process and the post-deposition thermodynamics of the material system.

}, author = {Andr{\'e} Anders} }