Flexible perovskite based X-ray detectors for dose monitoring in medical imaging applications

Organometallic halide perovskite materials are attracting considerable interest for high performance photovoltaic and photodetector applications due to their exceptional opto-electronic properties and easy processing capability. The high atomic numbers (Z) of their constituents also make these mater...

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Main Authors:	Hardeep Singh Gill, Bassem Elshahat, Akshay Kokil, Lian Li, Ravi Mosurkal, Piotr Zygmanski, Erno Sajo, Jayant Kumar
Format:	Article
Language:	English
Published:	Elsevier 2018-06-01
Series:	Physics in Medicine
Online Access:	http://www.sciencedirect.com/science/article/pii/S2352451018300088

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spelling	doaj-065fa81f348d4d8caa1cba5f85cc14122020-11-25T00:32:05ZengElsevierPhysics in Medicine2352-45102018-06-0152023Flexible perovskite based X-ray detectors for dose monitoring in medical imaging applicationsHardeep Singh Gill0Bassem Elshahat1Akshay Kokil2Lian Li3Ravi Mosurkal4Piotr Zygmanski5Erno Sajo6Jayant Kumar7Center for Advanced Materials, University of Massachusetts Lowell, Lowell, MA 01854, USA; Department of Physics and Applied Physics, University of Massachusetts Lowell, Lowell, MA 01854, USADepartment of Physics and Applied Physics, University of Massachusetts Lowell, Lowell, MA 01854, USA; Department of Medical Imaging, Royal Jubille Hospital, Vancouver Island Authority, Victoria, BC V8R 1J8, CanadaCenter for Advanced Materials, University of Massachusetts Lowell, Lowell, MA 01854, USABio-science Team, US Army Natick Soldier Research, Development & Engineering Center, Natick, MA 01760, USABio-science Team, US Army Natick Soldier Research, Development & Engineering Center, Natick, MA 01760, USADepartment of Radiation Oncology, Brigham and Women's Hospital & Dana Faber Cancer Institute, Harvard Medical School, Boston, MA 02115, USADepartment of Physics and Applied Physics, University of Massachusetts Lowell, Lowell, MA 01854, USACenter for Advanced Materials, University of Massachusetts Lowell, Lowell, MA 01854, USA; Department of Physics and Applied Physics, University of Massachusetts Lowell, Lowell, MA 01854, USA; Corresponding author. Center for Advanced Materials, University of Massachusetts Lowell, Lowell, MA 01854, USA.Organometallic halide perovskite materials are attracting considerable interest for high performance photovoltaic and photodetector applications due to their exceptional opto-electronic properties and easy processing capability. The high atomic numbers (Z) of their constituents also make these materials suitable for X-ray detection. Here we report on the direct detection of X-ray induced photocurrents in flexible organolead halide perovskite based detectors. The electrical response of the detectors was found to be linear with the radiation dosage. These perovskite based radiation detectors were about 550% more sensitive than commonly used amorphous silicon solar devices. The high sensitivity to the X-rays could be attributed to the high Z constituents and large charge carrier mobility. Our results indicate that the perovskite materials are promising candidates for direct X-ray detectors. Keywords: X-ray detectors, Dosimeterhttp://www.sciencedirect.com/science/article/pii/S2352451018300088
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Hardeep Singh Gill Bassem Elshahat Akshay Kokil Lian Li Ravi Mosurkal Piotr Zygmanski Erno Sajo Jayant Kumar
spellingShingle	Hardeep Singh Gill Bassem Elshahat Akshay Kokil Lian Li Ravi Mosurkal Piotr Zygmanski Erno Sajo Jayant Kumar Flexible perovskite based X-ray detectors for dose monitoring in medical imaging applications Physics in Medicine
author_facet	Hardeep Singh Gill Bassem Elshahat Akshay Kokil Lian Li Ravi Mosurkal Piotr Zygmanski Erno Sajo Jayant Kumar
author_sort	Hardeep Singh Gill
title	Flexible perovskite based X-ray detectors for dose monitoring in medical imaging applications
title_short	Flexible perovskite based X-ray detectors for dose monitoring in medical imaging applications
title_full	Flexible perovskite based X-ray detectors for dose monitoring in medical imaging applications
title_fullStr	Flexible perovskite based X-ray detectors for dose monitoring in medical imaging applications
title_full_unstemmed	Flexible perovskite based X-ray detectors for dose monitoring in medical imaging applications
title_sort	flexible perovskite based x-ray detectors for dose monitoring in medical imaging applications
publisher	Elsevier
series	Physics in Medicine
issn	2352-4510
publishDate	2018-06-01
description	Organometallic halide perovskite materials are attracting considerable interest for high performance photovoltaic and photodetector applications due to their exceptional opto-electronic properties and easy processing capability. The high atomic numbers (Z) of their constituents also make these materials suitable for X-ray detection. Here we report on the direct detection of X-ray induced photocurrents in flexible organolead halide perovskite based detectors. The electrical response of the detectors was found to be linear with the radiation dosage. These perovskite based radiation detectors were about 550% more sensitive than commonly used amorphous silicon solar devices. The high sensitivity to the X-rays could be attributed to the high Z constituents and large charge carrier mobility. Our results indicate that the perovskite materials are promising candidates for direct X-ray detectors. Keywords: X-ray detectors, Dosimeter
url	http://www.sciencedirect.com/science/article/pii/S2352451018300088
work_keys_str_mv	AT hardeepsinghgill flexibleperovskitebasedxraydetectorsfordosemonitoringinmedicalimagingapplications AT bassemelshahat flexibleperovskitebasedxraydetectorsfordosemonitoringinmedicalimagingapplications AT akshaykokil flexibleperovskitebasedxraydetectorsfordosemonitoringinmedicalimagingapplications AT lianli flexibleperovskitebasedxraydetectorsfordosemonitoringinmedicalimagingapplications AT ravimosurkal flexibleperovskitebasedxraydetectorsfordosemonitoringinmedicalimagingapplications AT piotrzygmanski flexibleperovskitebasedxraydetectorsfordosemonitoringinmedicalimagingapplications AT ernosajo flexibleperovskitebasedxraydetectorsfordosemonitoringinmedicalimagingapplications AT jayantkumar flexibleperovskitebasedxraydetectorsfordosemonitoringinmedicalimagingapplications
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Flexible perovskite based X-ray detectors for dose monitoring in medical imaging applications

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