Controlling growth stresses during thin film fabrication is of paramount importance to solve reliability issues operation functional films in harsh environments. A combination different methods for thin-film stress determination, such as situ wafer curvature and ex x-ray diffraction, usually required reveal tailor systems, well extract interface contributions multilayered coatings. In this arti...

Thin boron doped diamond (BDD) film is deposited from trimethyl borate/acetone/hydrogen mixture on Co-cemented tungsten carbide (WC-Co) micro drills by using the hot filament chemical vapor deposition (HFCVD) technique. The boron peak on Raman spectrum confirms the boron incorporation in diamond film. This film is used as an interlayer for subsequent CVD of micro-crystalline diamond (MCD) film....

Electro-optical/infrared (EO/IR) sensors and photovoltaic power sources are being developed for a variety of defense and commercial applications. One of the critical technologies that will enhance both EO/IR sensor and photovoltaic module performance is the development of high quality nanostructure-based antireflection coatings. In this paper, we review our work on advanced antireflection struc...

This paper is a brief review of our recent research into novel uses for heteropoly compounds as precursors for thin films that can be used as catalysts and materials with good optical, conductive and other characteristics. In view of this, we have chosen thin film obtained with 12-tungsphosphoric acid on aluminum substrates. In all cases, a relatively new, microarc oxidation technique has been ...

It has been experimentally observed that moth-eye antireflective microstructures at the end of As2S3 fibers have an increased laser damage threshold relative to thin-film antireflective coatings. In this work, we computationally study the irradiance enhancement in As2S3 moth-eye antireflective microstructures in order to explain the increased damage threshold. We show that the irradiance enhanc...

Thin films and coatings play a critical role in everything from food containers to photovoltaics. To meet such varied needs, they are made from every class of material and by numerous processes including physical and chemical vapor deposition techniques, atomic layer deposition, and sol gel processing.1 A key step in developing any new film is characterizing its surface structure and physical p...

Residual stress in optical thin film coatings can cause adhesion failures, cracking, buckling, and bending of the substrates. The stress in the coating depends on the materials used, deposition process, and the design. The bulk properties of the coating materials and the substrate such as thermal coefficient of expansion, Young’s Modulus, Poisson’s Ratio, etc., are basic parameters to be consid...

The collaboration between Sharp Laboratories of America (SLA), Oregon State University (OSU) and ORNL focused on low thermal budget pulse thermal processing (PTP) technique to develop high performance copper zinc tin sulfide (CZTS) thin film system for advanced photovoltaic (PV) applications, with the goal to develop novel fabrication processes for the manufacture of low-cost, high-performance ...

Dielectric multilayer coatings exhibiting steep reflectance in an extremely narrow transition zone, highly sensitive to any variations of layer refractive indices and therefore suitable for studying the nonlinear properties are produced and characterized. Increase of reflectance at growing intensity reveals the presence of the optical Kerr effect. A new method calculating intensity dependent sp...

Flexible electronic displays and touch screens are increasingly used in demanding outdoor environments. Design engineers are challenged to develop optical systems that meet a wide thermal range (-55° to + 85° C) and comply with diverse optical, electrical and mechanical parameters. This paper discusses the optical and mechanical properties of substrates and thin and thick film coatings used in ...