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http://dx.doi.org/10.1103/physrevb.44.12180 | DOI Listing |
Nanotechnology
November 2024
National Isotope Centre, GNS Science, Lower Hutt 5010, New Zealand.
Ion implantation is widely utilised for the modification of inorganic semiconductors; however, the technique has not been extensively applied to lead halide perovskites. In this report, we demonstrate the modification of the optical properties of caesium lead bromide (CsPbBr) thin films via noble gas ion implantation. We observed that the photoluminescence (PL) lifetimes of CsPbBrthin films can be doubled by low fluences (<1 × 10at·cm) of ion implantation with an acceleration voltage of 20 keV.
View Article and Find Full Text PDFBeilstein J Nanotechnol
September 2024
School of Medicine and Dentistry, Griffith University, Gold Coast QLD 4222, Australia.
Ion beam-induced heat damage in thermally low conductive specimens such as biological samples is gaining increased interest within the scientific community. This is partly due to the increased use of FIB-SEMs in biology as well as the development of complex materials, such as polymers, which need to be analyzed. The work presented here looks at the physics behind the ion beam-sample interactions and the effect of the incident ion energy (set by the acceleration voltage) on inducing increases in sample temperature and potential heat damage in thermally low conductive materials such as polymers and biological samples.
View Article and Find Full Text PDFFront Plant Sci
June 2023
Biophysics Group, Biomedical Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.
Heavy ion beam (HIB) is an effective physical mutagen that has been widely used in plant mutational breeding. Systemic knowledge of the effects caused by different HIB doses at developmental and genomic levels will facilitate efficient breeding for crops. Here we examined the effects of HIB systematically.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
March 2022
DNA Damage Chemistry Research Group, Institute for Quantum Life Science, National Institutes for Quantum Science and Technology, Kizugawa, 619-0215, Japan.
SignificanceDNA damage causes loss of or alterations in genetic information, resulting in cell death or mutations. Ionizing radiations produce local, multiple DNA damage sites called clustered DNA damage. In this study, a complete protocol was established to analyze the damage complexity of clustered DNA damage, wherein damage-containing genomic DNA fragments were selectively concentrated via pulldown, and clustered DNA damage was visualized by atomic force microscopy.
View Article and Find Full Text PDFMaterials (Basel)
January 2022
Laboratory for Ion Beam Interactions, Ruđer Bošković Institute, Bijenicka Cesta 54, 10000 Zagreb, Croatia.
Synthetic single crystal diamond grown using the chemical vapor deposition technique constitutes an extraordinary candidate material for monitoring radiation in extreme environments. However, under certain conditions, a progressive creation of space charge regions within the crystal can lead to the deterioration of charge collection efficiency. This phenomenon is called polarization and represents one of the major drawbacks associated with using this type of device.
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