A5029312572- Nanowire Synthesis and Applications
- Electrocatalysts for Energy Conversion
- Plant and Biological Electrophysiology Studies
- Advanced Photocatalysis Techniques
- Nanofabrication and Lithography Techniques
- Chalcogenide Semiconductor Thin Films
- Parallel Computing and Optimization Techniques
- Advanced battery technologies research
- Optical Coatings and Gratings
- Transition Metal Oxide Nanomaterials
- Solar Thermal and Photovoltaic Systems
- Ga2O3 and related materials
- Cephalopods and Marine Biology
- Modular Robots and Swarm Intelligence
- Neurobiology and Insect Physiology Research
- Fuel Cells and Related Materials
- 3D IC and TSV technologies
- Hybrid Renewable Energy Systems
- Heat Transfer and Optimization
- Micro and Nano Robotics
University of Twente
2015-2020
Several application fields can benefit from solar-hydrogen technologies <italic>via</italic> specific short-term and long-term pathways.
Abstract The photoelectrochemical (PEC) activity of microstructured electrodes remains low despite the highly enlarged surface area and enhanced light harvesting. To obtain a deeper understanding effect 3D geometry on PEC performance, well‐defined WO 3 /n‐Si /pn‐Si micropillar arrays are fabricated subjected to quantitative analysis relationship between micropillars (length, pitch) their activity. For micropillars, it is found that photocurrent increases for pillars, but not in proportion...
Abstract Wireless photoelectrochemical (PEC) devices promise easy device fabrication as well reduced losses. Here, the design and of a stand‐alone ion exchange material‐embedded, Si membrane‐based, cell architecture with micron‐sized pores is shown, to overcome i) pH gradient formation due long‐distance transport, ii) product crossover, iii) parasitic light absorption by application patterned catalyst. The membrane‐embedded PEC micropores utilizes triple junction absorber, Pt IrO x...
Abstract The current progress of system miniaturization relies extensively on the development 3D machining techniques to increase areal structure density. In this work, a wafer-scale out-of-plane silicon (Si) shaping technology is reported, which combines multistep plasma etching process with corner lithography. procedure results in high aspect ratio structures stacked semicircles etched deep into sidewall and thereby introduces corners proper geometry for subsequent Due geometrical contrast...
For the definition of wafer scale micro- and nanostructures, in-plane geometry is usually controlled by optical lithography. However, options for precisely patterning structures in out-of-plane direction are much more limited. In this paper we present a versatile self-aligned technique that allows reproducible sub-micrometer resolution local modification along vertical silicon sidewalls. Instead lithography, method makes smart use inclined ion beam etching to selectively etch top parts...
The desert locust (schistocerca gregaria) has ears integrating sound reception, impedance transformation and frequency discrimination in a single passive membrane.The anatomy dependent response of these to acoustic input have been extensively studied before.This is the inspiration for development new sensor with integrated mechanical filtering.We worked on microfabrication process based conformal deposition Parylene silicon which was used make membranes similar variations tension, thickness...