Publications by authors named "S Gopal"
Incorporating carbon-based fillers into triboelectric nanogenerators, TENGs, is a compelling strategy to enhance the power output. However, the lack of systematic studies comparing various carbon fillers and their impact on tribopositive contact layers necessitates further research. To address these concerns, various carbon fillers (including buckminsterfullerene (C), graphene oxide (GO), reduced graphene oxide (rGO), multi-wall carbon nanotube (MWCNT), and super activated carbon (SAC)) with distinct structural and electrical properties are mixed with polyvinyl alcohol, PVA, to form PVA-carbon composites and used as tribopositive layers in the contact-separation of TENGs.
View Article and Find Full Text PDFAims And Background: This study aims to compare the fracture resistance force (FRF) and failure types of three-dimensional (3D)-printed stainless steel crowns (SSCs) and preformed SSCs in primary molars.
Materials And Methods: Forty-eight over-retained and extracted mandibular second deciduous molars were divided into two groups: one receiving 3D-printed crowns and the other preformed crowns. Fracture resistance testing was performed using a universal mechanical testing machine, and failure types were analyzed post-testing.
Photoelectrical properties and excited-state dynamics of a nitrostilbene-functionalized organosiloxane liquid crystal.
Spectrochim Acta A Mol Biomol Spectrosc
December 2024
Article Synopsis
- - This study examines the properties of a specific liquid crystal compound known as SNS, focusing on its behavior when exposed to light and its electrical characteristics in different phases (crystalline and SmC).
- - Real-time analysis reveals that a charge transfer excited state forms quickly following UV exposure, with varying lifetimes observed in different phases due to local environment differences; the crystalline phase exhibits slower dynamics.
- - Results show that UV light significantly boosts SNS conductivity, especially in the SmC phase, with potential applications identified in optoelectronic devices like light switches and photodetectors.