Printable ionizing radiation sensors fabricated from nanoparticulate blends of organic scintillators and polymer semiconductors

Title: Printable ionizing radiation sensors fabricated from nanoparticulate blends of organic scintillators and polymer semiconductors
Creator: Anderson, Darcie; Cottam, Sophie; Heim, Heidianne; Zhang, Huiming; Holmes, Natalie P.; Griffith, Matthew J.
Relation: MRS Communications Vol. 9, Issue 4, p. 1206-1213
Publisher Link: http://dx.doi.org/10.1557/mrc.2019.132
Publisher: Cambridge University Press
Resource Type: journal article
Date: 2019
Description: This work established the feasibility of flexible solution-processed radiation sensors prepared from an organic scintillator (1-phenyl-3-mesityl-2-pyrazoline) and a biocompatible semiconducting polymer (violanthrone-79). Absorbance, steady-state, and time-resolved photoluminescence measurements demonstrated a high efficiency for the transfer of absorbed energy from the scintillator to the semiconductor. Blended nanoparticles containing both materials were fabricated in order to reduce the intermolecular distance between molecules, creating a highly efficient energy transfer pathway. Radiation-sensing devices were then constructed from the materials. These exhibited successful sensitivity for gamma radiation from a 137Cs source that was not present for the control semiconducting polymer alone.
Subject: radiation sensors; organic scintillator; absorbed energy
Identifier: http://hdl.handle.net/1959.13/1417867
Identifier: uon:37268
Identifier: ISSN:2159-6859
Language: eng
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