Showing 241 - 260 results of 4,296 for search '(lobau OR (hebat OR (((comar OR (raman OR zaman)) OR coar) OR (obar OR (lebar OR lebat)))))', query time: 0.26s Refine Results
  1. 241

    Cold atoms laboratory in a hollow core fiber by Leong, Wui Seng

    Published 2021
    “…I first demonstrate an inertia-sensitive Mach-Zehnder atom interferometer using two counter-propagating Raman beams. However, the short quantum spin coherence time of $\sim$\SI{100}{\micro\second} due to the differential AC stark shift from the trapping beam is a major obstacle to reaching high sensitivity of the optically trapped atom interferometer inside the HCF. …”
    Get full text
    Thesis-Doctor of Philosophy
  2. 242

    Evaluating the effect of n-butanol additive on particulate matter emission in diesel engine by Zhu, Qiren, Zong, Yichen, Tan, Yong Ren, Lyu, Jieyao, Yu, Wenbin, Yang, Wenming, Kraft, Markus

    Published 2022
    “…We further sample the soot particles from the engine emission. The result of the Raman spectroscopy investigation of soot samples reveals that n-butanol can increase the oxidative reactivity of the particles and the shorter combustion duration of engine can increase the level of disorder of the particles. …”
    Get full text
    Journal Article
  3. 243

    Deposition and characterisation of a diamond/Ti/diamond multilayer structure by Mallik, Awadesh Kumar, Lloret, Fernando, Gutierrez, Marina, Rouzbahani, Rozita, Pobedinskas, Paulius, Shih, Wen-Ching, Haenen, Ken

    Published 2024
    “…It has been found that a combined pre-treatment of the silicon base substrate, via argon plasma etching for creating surface roughness and, thereafter, detonation nanodiamond (DND) seeding, helps in the nucleation and growth of well-adherent CVD diamond films with a well-defined Raman signal at 1332 cm−1, showing the crystalline nature of the film. …”
    Get full text
    Journal Article
  4. 244

    Li3V2(PO4)3 nanocrystals embedded in a nanoporous carbon matrix supported on reduced graphene oxide sheets as cathode material for lithium-ion batteries by Wong, Kang Ming.

    Published 2012
    “…The structure and morphology of the samples were characterized by FESEM, TEM, XRD, Raman spectroscopy, TGA and nitrogen adsorption-desorption isotherms. …”
    Get full text
    Final Year Project (FYP)
  5. 245

    High-yield synthesis and optical properties of g-C3N4 by Yuan, Yanwen, Zhang, Lulu, Xing, Jun, Utama, M. Iqbal Bakti, Lu, Xin, Du, Kezhao, Li, Yongmei, Hu, Xiao, Wang, Shijie, Genç, Aziz, Dunin-Borkowski, Rafal, Arbiol, Jordi, Xiong, Qihua

    Published 2016
    “…The optical phonon behavior of g-C3N4 is revealed by infrared and Raman spectroscopy, and the emission properties of g-C3N4 are investigated using photoluminescence (PL) spectroscopy, while the photocatalytic properties are explored by the photodegradation experiment.…”
    Get full text
    Get full text
    Journal Article
  6. 246

    Molecular dynamics and simulations study on the vibrational and electronic solvatochromism of benzophenone by Kumar, Venkatraman Ravi, Verma, Chandra, Umapathy, Siva

    Published 2017
    “…A comprehensive solvatochromic analysis of benzophenone (Bzp) was carried out in various solvents using Raman and electronic spectroscopy, in conjunction with Density Functional Theory (DFT) calculations of supramolecular solute-solvent clusters generated using classical Molecular Dynamics Simulations (c-MDSs). …”
    Get full text
    Get full text
    Journal Article
  7. 247

    Creating two self-assembly micro-environments to achieve supercrystals with dual structures using polyhedral nanoparticles by Lee, Yih Hong, Lay, Chee Leng, Shi, Wenxiong, Lee, Hiang Kwee, Yang, Yijie, Li, Shuzhou, Ling, Xing Yi

    Published 2018
    “…We further highlight a 3.3-fold synergistic enhancement of surface-enhanced Raman scattering efficiency arising from these dual-structure supercrystals as compared to a uniform one.…”
    Get full text
    Get full text
    Journal Article
  8. 248

    Taburan menegak mikroplastik dalam sedimen teras di Muara Sungai Pulai, Johor by Laila Zulaifah Zulkipli, Nurul Aisyah Mohd Zaki, Mohamad Hafiz Abdul Halim, Khairiatul Mardiana Jansar, Mohd Talib Latif, Masni Mohd Ali

    Published 2024
    “…Sampel sedimen diekstrak dan mikroplastik dicirikan dengan menggunakan mikroskop stereo dan analisis polimer dibuat menggunakan spektroskopi μ-RAMAN. Hasil daripada kajian ini menunjukkan kelimpahan mikroplastik yang paling tinggi didapati pada lapisan sedimen teratas (0–5 cm) iaitu 506 ± 115.47 partikel/kg di stesen SP1 dan sebanyak 220.00 ± 28.28 partikel/kg pada lapisan pertengahan (10–15 cm) di stesen SP2. …”
    Get full text
    Article
  9. 249

    Enhanced piezoelectric nanogenerator based on tridoped graphene and Ti3CNTx MXene Quasi-3D heterostructure by Kou, Lijie, Haque, Rawhan, Sadri, Rad, Auliya, Rahmat Zaki, Kaur, Manpreet, Roberts, Edward P. L., Gan, Wee Chen, Mohammad Haniff, Muhammad Aniq Shazni, Dee, Chang Fu, Ooi, Poh Choon

    Published 2024
    “…According to X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, X-ray diffractometer (XRD), and Fourier transform infrared spectroscopy (FTIR) chemical characterization analysis, it is proposed that the excellent conductivity and rich surface functional groups of these two-dimensional materials can effectively provide heterointerfaces to form a quasi-three-dimensional heterostructure and improve the interaction between the fillers and polymer matrix, promoting the electroactive β-phase, and consequently enhancing the output power density of PENG. …”
    Article
  10. 250

    Waste palm leaves-based hydrochar support catalytic esterification of palm fatty acid distillate by Aliyu, Muhammad, Rashid, Umer, Wan Ab Karim Ghani, Wan Azlina, Mohd Salleh, Mohamad Amran, Hazmi, Balkis, Alharthi, Fahad A., Antunes, Elsa, Yu, Jianglong

    Published 2024
    “…The catalyst was characterized using TGA, XRD, FESEM, EDX, BET, FT-IR, Raman, and acid density. The synthesized catalyst was found to have remarkable stability during the thermal test. …”
    Article
  11. 251

    Ethanol sensor using tapered optical fiber coated with graphene-based nanomaterials by Girei, Saad Hayatu

    Published 2014
    “…Graphene and GO thin films were characterized using scanning electron microscopy (SEM),Raman and ultraviolet-visible (UV-Vis) spectroscopies. …”
    Get full text
    Thesis
  12. 252
  13. 253

    Functional properties of Yttrium Iron Garnett thin films on graphene-coated Gd3Ga5O12 for remote epitaxial transfer by Leontsev, S., Shah, P.J., Kum, H.S., McChesney, J.L., Rodolakis, F.M., van Veenendaal, M., Velez, M., Rao, R., Haskel, D., Kim, J., Reed, A.N., Page, M.R.

    Published 2024
    “…Both materials were characterized in terms of crystal structure, surface morphology, FMR and Gilbert damping, and Raman and XAS spectroscopy. It was found that YIG on graphene-coated GGG exhibits significantly higher microwave losses than standard YIG on GGG (FMR linewidth 30.9 vs 2.1 Oe at 10 GHz, and Gilbert damping coefficient 15.4 × 10-4 vs 3.4 × 10-4 respectively), which was attributed to increased concentration of Fe2+ cations in YIG/Graphene/GGG. …”
    Get full text
    Article
  14. 254

    Integrative and comparative analysis of coiled-coil based marine snail egg cases : a model for biomimetic elastomers by Guerette, Paul A., Z. Tay, Gavin, Hoon, Shawn, Loke, Jun Jie, Hermawan, Arif F., Schmitt, Clemens N. Z., Harrington, Matthew J., Masic, Admir, Karunaratne, Angelo, Gupta, Himadri S., Tan, Koh Siang, Schwaighofer, Andreas, Nowak, Christoph, Miserez, Ali

    Published 2014
    “…The two species also displayed similarity in hierarchical fibril bundling and a sub-micron staggering of 100–105 nm within filaments, as shown by atomic force microscopy and small angle X-ray diffraction. In situ Raman micro spectroscopy indicated that P. cochlidium egg cases undergo a stress-induced coiled-coil to extended β-strand structural transformation that is very similar to that of B. canaliculatus. …”
    Get full text
    Get full text
    Journal Article
  15. 255

    Improving the charge separation and collection at the buffer/absorber interface by double-layered Mn-substituted CZTS by Lie, Stener, Sandi, Mario Indra, Tay, Ying Fan, Li, Wenjie, Tan, Joel Ming Rui, Bishop, Douglas M., Gunawan, Oki, Wong, Lydia Helena

    Published 2020
    “…X-ray diffraction (XRD) and Raman analysis confirm Mn substitution for Zn in the crystal lattice of Cu2ZnSnS4 (CZTS) with no secondary phases detected for x ≤ 0.4. …”
    Get full text
    Journal Article
  16. 256

    Light-matter interactions in high quality manganese-doped two-dimensional molybdenum diselenide by Liu, Sheng, Wu, Yaze, Liu, Xue, Del Águila, Andrés Granados, Xuan, Fengyuan, Chaturvedi, Apoorva, Zhang, Hua, Quek, Su Ying, Xiong, Qihua

    Published 2022
    “…We observed a suppressed trion intensity, a longer photoluminescence lifetime, and prominent blue- and red-shift of E2g2 (in-plane) and A1g (out-of-plane) Raman modes, respectively. Moreover, the Mn dopants increase the valley Zeeman splitting of the MoSe2 monolayer by ∼50%, while preserving the linear dependence on magnetic field. …”
    Get full text
    Journal Article
  17. 257

    Structural and magnetic interplay in multiferroic Ho₀.₅Nd₀.₅Fe₃(BO₃)₄ by Tripathy, A., Gautam, K., Dey, K., Sahu, S. R., Ahad, A., Upadhyay, A., Sagdeo, A., Francoual, S., Bereciartua, P. J., Gudim, I., Strempfer, J., Sathe, V. G., Shukla, D. K.

    Published 2023
    “…By utilizing temperature-dependent synchrotron x-ray powder diffraction, we report here the observation of structural phase transition, i.e., the lowering of crystal symmetry from R32 to P3121 below TN in Ho0.5Nd0.5Fe3(BO3)4, which is further confirmed by single-crystal x-ray diffraction measurements as well as substantiated by dielectric and Raman spectroscopic results. With the help of x-ray resonant magnetic scattering, we have studied the element-specific magnetic ordering behavior, and by combining all the results, we show that the spontaneous electric polarization below the antiferromagnetic ordering transition emerges through the p-d hybridization mechanism associated with the FeO6 octahedra. …”
    Get full text
    Journal Article
  18. 258

    Studies on the physicochemical, biomechanical and biological properties of novel decellularized bovine scaffold for bone regeneration by Qabbani, Ali Abdul Qader Hameed Al

    Published 2024
    “…DCC sites also demonstrated elevated mRNA levels of osteogenic markers such as osteonectin, osteopontin, and osteocalcin. RAMAN spectroscopy showed an increased abundance of collagen and bone minerals, particularly phosphate ions (PO43-), in DCC scaffolds. …”
    Get full text
    Thesis
  19. 259

    Operando investigation on the fast two-phase transition kinetics of LiFePO4/C composite cathodes with carbon additives for lithium-ion batteries by Shih, Jengywan, Lin, Guanyin, James Li, Ying Jeng, Hung, Tai-Feng, Jose, Rajan, Karuppiah, Chelladurai, Yang, Chun–Chen

    Published 2022
    “…It can also provide better reversibility in a phase transition of LiFePO4/FePO4 phases during the charge/discharge cycle, further confirmed by in-situ XRD and micro-Raman techniques. The results indicated that the LFP/C/VGCF cathode displayed much faster kinetics behavior than bare LFP/C cathode.…”
    Get full text
    Get full text
    Article
  20. 260

    Nanoscale Origins of Thermal Transport Phenomena for Hybrid Layered Perovskites by Dahod, Nabeel S.

    Published 2025
    “…Finally, I report the first measurements of the vibrational spectrum for 2D LHPs via low frequency Raman spectroscopy. This probe identifies the persistence of bulk-like phonons even in the atomically thin 2D LHPs, in addition to identifying coherent acoustic phonons in lead iodide 2D LHPs potentially capable of carrying thermal energy across the organic-inorganic interfaces without scattering. …”
    Get full text
    Thesis