- Optical Coherence Tomography Applications
- Spectroscopy Techniques in Biomedical and Chemical Research
- Advancements in Battery Materials
- Advanced Fluorescence Microscopy Techniques
- Supercapacitor Materials and Fabrication
- Semiconductor materials and devices
- ZnO doping and properties
- GaN-based semiconductor devices and materials
- Nanowire Synthesis and Applications
- Advancements in Transdermal Drug Delivery
Technische Universität Braunschweig
2021-2023
Production of high-aspect-ratio silicon (Si) nanowire-based anode for lithium ion batteries is challenging particularly in terms controlling wire property and geometry to improve the battery performance. This report demonstrates tunable optimization inductively coupled plasma reactive etching (ICP-RIE) at cryogenic temperature fabricate vertically-aligned nanowire array anodes with high verticality, controllable morphology, good homogeneity. Three different materials [i.e., photoresist,...
Abstract The integration of gallium nitride (GaN) nanowire light-emitting diodes (nanoLEDs) on flexible substrates offers opportunities for applications beyond rigid solid-state lighting (e.g., wearable optoelectronics and bendable inorganic displays). Here, we report a fast physical transfer route based femtosecond laser lift-off ( fs -LLO) to realize wafer-scale top–down GaN nanoLED arrays unconventional platforms. Combined with photolithography hybrid etching processes, successfully...
The reconstruction of the three-dimensional (3D) morphology polymeric microsphere layers based on confocal Raman microscopy was studied. Refraction laser beam at curved surface spheres broadens focus volume inside sphere. Compared to planar layers, gets trapped such that measured depth profiles are shifted and broadened. Additionally, signal underlying substrate is already observed for nominal positions above layer. results successfully modeled with ray-optical simulations allow a clear...
In confocal Raman microscopy, depth profiling is a key application that enables analysis of the structural and chemical composition size three-dimensional (3D) transparent objects. However, precise interpretation probed sample's profile measurement can be significantly affected by both its surrounding This study provides more comprehensive understanding observed optical effects at interface between polymer spheres different substrates. Ray- wave-optical simulations support our results. We...