X-ray photoemission analysis of chemically modified TlBr surfaces for improved radiation detectors

Nelson, A. J.; Voss, L. F.; Beck, P. R.; Graff, R. T.; Conway, A. M.; Nikolic, R. J.; Payne, S. A.; Lee, J. -S.; Kim, H.; Cirignano, L.; Shah, K.

doi:10.1063/1.4801793

Title: X-ray photoemission analysis of chemically modified TlBr surfaces for improved radiation detectors

Journal Article · Sat Jan 12 00:00:00 EST 2013 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4801793· OSTI ID:1240070

Nelson, A. J. ^[1]; Voss, L. F. ^[1]; Beck, P. R. ^[1]; Graff, R. T. ^[1]; Conway, A. M. ^[1]; Nikolic, R. J. ^[1]; Payne, S. A. ^[1]; Lee, J. -S. ^[2]; Kim, H. ^[3]; Cirignano, L. ^[3]; Shah, K. ^[3]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
Radiation Monitoring Devices, Watertown, MA (United States)

We subjected device-grade TlBr to various chemical treatments used in room temperature radiation detector fabrication to determine the resulting surface composition and electronic structure. As-polished TlBr was treated separately with HCl, SOCl₂, Br:MeOH and HF solutions. High-resolution photoemission measurements on the valence band electronic structure and Tl 4f, Br 3d, Cl 2p and S 2p core lines were used to evaluate surface chemistry and shallow heterojunction formation. Surface chemistry and valence band electronic structure were correlated with the goal of optimizing the long-term stability and radiation response.

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Research Organization:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1240070

Report Number(s):: LLNL-JRNL-623312; JAPIAU; TRN: US1600503

Journal Information:: Journal of Applied Physics, Vol. 113, Issue 14; ISSN 0021-8979

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 2 works

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References (23)

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