Observation of self-polarization in BSA protected Au 20 clusters
Source abstract
Abstract
Abstract Bovine serum albumin (BSA)-protected gold clusters (atomicity ∼ 20), prepared using a wet chemical route, show strong dipolar radiative transition with a gap energy of 1.93 eV due to the high oscillator strength, as confirmed by the emission studies. Self-arrangement of the clusters with fixed atomicity yields a low dispersive dielectric and electric self-polarization nature. The electrical hysteresis loop measurements returned a remanent polarization of 0.05 μ C cm −2 , which can be correlated with the dipolar orientation (activation energy ∼ 45.32 meV), originating from the structure-dependent deformation of the charge density.
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Research context
OpenAlex topics: Nanocluster Synthesis and Applications · Gold and Silver Nanoparticles Synthesis and Applications · Quantum Dots Synthesis And Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Jatni, 752050, Odisha,
Department of Physics and Astronomy, National Institute of Technology, Rourkela, 769008, Odisha,
Department of Physics, Indian Institute of Technology, Kharagpur-721 302,
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-Ku, Sendai 980-8577,
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