Publications by authors named "Robin R Petit"
Atomic Layer Deposition for Stable InP-Based On-Chip Quantum Dot microLEDs: Hybrid Quantum Dot Pockets.
ACS Appl Mater Interfaces
November 2024
Recent advances in synthesis techniques yield InP-based QDs with optical properties comparable to those of benchmark Cd-based QDs, making InP-based QDs viable alternatives to toxic Cd-based QDs for applications such as quantum dot LEDs (QLEDs). However, QLEDs typically suffer from a loss of luminescence over time due to exposure of the QDs to ambient air. To avoid this, state-of-the-art hybrid barrier layers are explored consisting of alternating organic/inorganic layers.
View Article and Find Full Text PDFAtomic Layer Deposition on Polymer Thin Films: On the Role of Precursor Infiltration and Reactivity.
ACS Appl Mater Interfaces
September 2021
Article Synopsis
- Inorganic barriers created through atomic layer deposition (ALD) can prevent water and oxygen from penetrating polymer thin films, improving their stability.
- The study investigates the growth of these barriers on polystyrene, poly(methyl methacrylate), and poly(ethylene terephthalate glycol) films by monitoring various properties using advanced spectroscopic techniques.
- Key findings reveal that the temperature during deposition and the type of functional groups in the polymer influence how much ALD materials infiltrate the thin films, allowing for control over this process.
Mechanoluminescence (ML) is the phenomenon describing the emission of light during mechanical action on a solid, leading to applications such as pressure sensing, damage detection and visualization of stress distributions. In most cases, this mechanical action releases energy that was previously stored in the crystal lattice of the phosphor by means of trapped charge carriers. A drawback is the need to record the ML emission during a pressure event.
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