In Situ Positron Annihilation Spectroscopy Analysis on Low-Temperature Irradiated Semiconductors, Challenges and Possibilities

Slotte, Jonatan; Kilpeläinen, Simo; Segercrantz, Natalie; Mizohata, Kenichiro; Räisänen, Jyrki; Tuomisto, Filip

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In Situ Positron Annihilation Spectroscopy Analysis on Low-Temperature Irradiated Semiconductors, Challenges and Possibilities

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Title:	In Situ Positron Annihilation Spectroscopy Analysis on Low-Temperature Irradiated Semiconductors, Challenges and Possibilities
Author(s):	Slotte, Jonatan ; Kilpeläinen, Simo ; Segercrantz, Natalie ; Mizohata, Kenichiro ; Räisänen, Jyrki ; Tuomisto, Filip
Date:	2021-01
Language:	en
Pages:	6
Department:	Antimatter and Nuclear Engineering Department of Applied Physics University of Helsinki
Series:	Physica Status Solidi (A) Applications and Materials Science, Volume 218, issue 1
ISSN:	1862-6300 1862-6319
DOI-number:	10.1002/pssa.202000232
Keywords:	defects, irradiation, positron annihilation spectroscopy, vacancies
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Citation: Slotte , J , Kilpeläinen , S , Segercrantz , N , Mizohata , K , Räisänen , J & Tuomisto , F 2021 , ' In Situ Positron Annihilation Spectroscopy Analysis on Low-Temperature Irradiated Semiconductors, Challenges and Possibilities ' , Physica Status Solidi (A) Applications and Materials Science , vol. 218 , no. 1 , 2000232 . https://doi.org/10.1002/pssa.202000232
Abstract: A unique experimental setup at the Accelerator Laboratory of the University of Helsinki enables in situ positron annihilation spectroscopy (PAS) analysis on ion irradiated samples. In addition, the system enables temperature control (10–300 K) of the sample both during irradiation and during subsequent positron annihilation measurements. Using such a system for defect identification and annealing studies comes with a plethora of possibilities for elaborate studies. However, the system also poses some restrictions and challenges to these possibilities, both related to irradiation and to the PAS analysis. This review tries to address these issues.

Permanent link to this item: http://urn.fi/URN:NBN:fi:aalto-202103032198 Email this Export to RefWorks QR Code Print BibTex Tweet