Codeposition of ultrasmooth and high quantum efficiency cesium telluride photocathodes

Gaowei, M.; Sinsheimer, J.; Strom, D.; Xie, J.; Cen, J.; Walsh, J.; Muller, E.; Smedley, J.

doi:10.1103/PhysRevAccelBeams.22.073401

Title: Codeposition of ultrasmooth and high quantum efficiency cesium telluride photocathodes

Journal Article · Tue Jul 23 00:00:00 EDT 2019 · Physical Review Accelerators and Beams

DOI:https://doi.org/10.1103/PhysRevAccelBeams.22.073401· OSTI ID:1544577

Gaowei, M.; Sinsheimer, J.; Strom, D.; Xie, J.; Cen, J.; Walsh, J.; Muller, E.; Smedley, J.

Cesium telluride (CsTe) photocathodes have been the primary choice for electron sources by worldwide accelerators, due to their high quantum yield, stable performance in complex operation environments and long lifetime. In this paper we compared the traditional sequential and the newly developed coevaporation growth of CsTe photocathodes by describing the chemical and structural evolution of each growth method, using in situ, real time x-ray characterization. From the codeposition method, we were able to achieve similar to 2 nm surface roughness, high crystallinity and a quantum efficiency of 19% at 266 nm wavelength.

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Research Organization:: Brookhaven National Lab. (BNL), Upton, NY (United States); Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); National Institutes of Health (NIH)

Grant/Contract Number:: KC0407-ALSJNT-I0013; AC02-98CH1088; AC02-98CH10886; AC02-06CH11357; SC0012704; SC0009540

OSTI ID:: 1544577

Alternate ID(s):: OSTI ID: 1566298; OSTI ID: 1566750

Report Number(s):: BNL-212115-2019-JAAM; PRABCJ; 073401

Journal Information:: Physical Review Accelerators and Beams, Journal Name: Physical Review Accelerators and Beams Vol. 22 Journal Issue: 7; ISSN 2469-9888

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 15 works

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References (17)

A low emittance and high efficiency visible light photocathode for high brightness accelerator-based X-ray light sources Vecchione, T.; Ben-Zvi, I.; Dowell, D. H. Applied Physics Letters, Vol. 99, Issue 3 https://doi.org/10.1063/1.3612916	journal	July 2011
Fabrication and characterization of cesium telluride photocathodes: A promising electron source for the Los Alamos Advanced FEL Kong, S. H.; Nguyen, D. C.; Sheffield, R. L. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 358, Issue 1-3 https://doi.org/10.1016/0168-9002(94)01279-2	journal	April 1995
Bi-alkali antimonide photocathodes for high brightness accelerators Schubert, S.; Ruiz-Osés, M.; Ben-Zvi, I. APL Materials, Vol. 1, Issue 3 https://doi.org/10.1063/1.4821625	journal	September 2013
Rugged spin-polarized electron sources based on negative electron affinity GaAs photocathode with robust Cs ₂ Te coating Bae, Jai Kwan; Cultrera, Luca; DiGiacomo, Philip Applied Physics Letters, Vol. 112, Issue 15 https://doi.org/10.1063/1.5026701	journal	April 2018
Near atomically smooth alkali antimonide photocathode thin films Feng, Jun; Karkare, Siddharth; Nasiatka, James Journal of Applied Physics, Vol. 121, Issue 4 https://doi.org/10.1063/1.4974363	journal	January 2017
Advances in bright electron sources Musumeci, P.; Giner Navarro, J.; Rosenzweig, J. B. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 907 https://doi.org/10.1016/j.nima.2018.03.019	journal	November 2018
Searching for low-workfunction phases in the Cs-Te system: The case of Cs ₂ Te ₅ Ruth, Anthony; Németh, Károly; Harkay, Katherine C. Journal of Applied Physics, Vol. 113, Issue 18 https://doi.org/10.1063/1.4804155	journal	May 2013
Photoelectron spectroscopic determination of the structure of (Cs,O) activated GaAs (110) surfaces Su, C. Y.; Spicer, W. E.; Lindau, I. Journal of Applied Physics, Vol. 54, Issue 3 https://doi.org/10.1063/1.332166	journal	March 1983
A multiplatform code for the analysis of energy-dispersive X-ray fluorescence spectra Solé, V. A.; Papillon, E.; Cotte, M. Spectrochimica Acta Part B: Atomic Spectroscopy, Vol. 62, Issue 1 https://doi.org/10.1016/j.sab.2006.12.002	journal	January 2007
Surface Studies of Solids by Total Reflection of X-Rays Parratt, L. G. Physical Review, Vol. 95, Issue 2 https://doi.org/10.1103/PhysRev.95.359	journal	July 1954
Synchrotron x-ray study of a low roughness and high efficiency K ₂ CsSb photocathode during film growth Xie, Junqi; Demarteau, Marcel; Wagner, Robert Journal of Physics D: Applied Physics, Vol. 50, Issue 20 https://doi.org/10.1088/1361-6463/aa6882	journal	April 2017
Temperature-dependent quantum efficiency degradation of K-Cs-Sb bialkali antimonide photocathodes grown by a triple-element codeposition method Ding, Zihao; Karkare, Siddharth; Feng, Jun Physical Review Accelerators and Beams, Vol. 20, Issue 11 https://doi.org/10.1103/PhysRevAccelBeams.20.113401	journal	November 2017
Kelvin probe studies of cesium telluride photocathode for AWA photoinjector Wisniewski, Eric E.; Velazquez, Daniel; Yusof, Zikri Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 711 https://doi.org/10.1016/j.nima.2013.01.045	journal	May 2013
Measurements of copper and cesium telluride cathodes in a radio-frequency photoinjector Prat, Eduard; Bettoni, Simona; Braun, Hans-Heinrich Physical Review Special Topics - Accelerators and Beams, Vol. 18, Issue 4 https://doi.org/10.1103/PhysRevSTAB.18.043401	journal	April 2015
Auger and x‐ray photoemission spectroscopy study on Cs ₂ Te photocathodes di Bona, A.; Sabary, F.; Valeri, S. Journal of Applied Physics, Vol. 80, Issue 5 https://doi.org/10.1063/1.363161	journal	September 1996
Commentary: The Materials Project: A materials genome approach to accelerating materials innovation Jain, Anubhav; Ong, Shyue Ping; Hautier, Geoffroy APL Materials, Vol. 1, Issue 1 https://doi.org/10.1063/1.4812323	journal	July 2013
Cesium telluride cathodes for the next generation of high-average current high-brightness photoinjectors Filippetto, D.; Qian, H.; Sannibale, F. Applied Physics Letters, Vol. 107, Issue 4 https://doi.org/10.1063/1.4927700	journal	July 2015