Active bialkali photocathodes on free-standing graphene substrates

Graphene in accelerator technology: A new material for enhanced photocathode performance and lifetime Graphene has shown potential to unlock new capabilities of electron sources and other aspects of accelerator technology. This report focuses on integrating graphene with high performance photocathod...

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Autores principales:	Hisato Yamaguchi, Fangze Liu, Jeffrey DeFazio, Claudia W. Narvaez Villarrubia, Daniel Finkenstadt, Andrew Shabaev, Kevin L. Jensen, Vitaly Pavlenko, Michael Mehl, Sam Lambrakos, Gautam Gupta, Aditya D. Mohite, Nathan A. Moody
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/4513de9448b343a68411e91a8ef5b246
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spelling	oai:doaj.org-article:4513de9448b343a68411e91a8ef5b2462021-12-02T14:22:13ZActive bialkali photocathodes on free-standing graphene substrates10.1038/s41699-017-0014-62397-7132https://doaj.org/article/4513de9448b343a68411e91a8ef5b2462017-06-01T00:00:00Zhttps://doi.org/10.1038/s41699-017-0014-6https://doaj.org/toc/2397-7132Graphene in accelerator technology: A new material for enhanced photocathode performance and lifetime Graphene has shown potential to unlock new capabilities of electron sources and other aspects of accelerator technology. This report focuses on integrating graphene with high performance photocathodes with the goal of extending lifetime by thousands of hours. Scientists at Los Alamos National Laboratory, USA, and colleagues succeeded in growth of chemically susceptible photocathodes on free-standing graphene substrates while maintaining state-of-the-art performance. Successful growth on graphene is a critical step toward a material-centric approach to photocathode design: enhancing lifetime without compromising efficiency or other performance metrics. Graphene, an atomically thin sheet of carbon, is an emerging material that has inspired new cathode design capabilities, including heterostructuring, resonant tunneling, and impermeable gas barriers. Conventional photocathode materials have no performance regimes. The next step is complete graphene encapsulation of photocathode films and demonstration of lifetime enhancement in the operating environment of accelerator facilities.Hisato YamaguchiFangze LiuJeffrey DeFazioClaudia W. Narvaez VillarrubiaDaniel FinkenstadtAndrew ShabaevKevin L. JensenVitaly PavlenkoMichael MehlSam LambrakosGautam GuptaAditya D. MohiteNathan A. MoodyNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492ChemistryQD1-999ENnpj 2D Materials and Applications, Vol 1, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999 Hisato Yamaguchi Fangze Liu Jeffrey DeFazio Claudia W. Narvaez Villarrubia Daniel Finkenstadt Andrew Shabaev Kevin L. Jensen Vitaly Pavlenko Michael Mehl Sam Lambrakos Gautam Gupta Aditya D. Mohite Nathan A. Moody Active bialkali photocathodes on free-standing graphene substrates
description	Graphene in accelerator technology: A new material for enhanced photocathode performance and lifetime Graphene has shown potential to unlock new capabilities of electron sources and other aspects of accelerator technology. This report focuses on integrating graphene with high performance photocathodes with the goal of extending lifetime by thousands of hours. Scientists at Los Alamos National Laboratory, USA, and colleagues succeeded in growth of chemically susceptible photocathodes on free-standing graphene substrates while maintaining state-of-the-art performance. Successful growth on graphene is a critical step toward a material-centric approach to photocathode design: enhancing lifetime without compromising efficiency or other performance metrics. Graphene, an atomically thin sheet of carbon, is an emerging material that has inspired new cathode design capabilities, including heterostructuring, resonant tunneling, and impermeable gas barriers. Conventional photocathode materials have no performance regimes. The next step is complete graphene encapsulation of photocathode films and demonstration of lifetime enhancement in the operating environment of accelerator facilities.
format	article
author	Hisato Yamaguchi Fangze Liu Jeffrey DeFazio Claudia W. Narvaez Villarrubia Daniel Finkenstadt Andrew Shabaev Kevin L. Jensen Vitaly Pavlenko Michael Mehl Sam Lambrakos Gautam Gupta Aditya D. Mohite Nathan A. Moody
author_facet	Hisato Yamaguchi Fangze Liu Jeffrey DeFazio Claudia W. Narvaez Villarrubia Daniel Finkenstadt Andrew Shabaev Kevin L. Jensen Vitaly Pavlenko Michael Mehl Sam Lambrakos Gautam Gupta Aditya D. Mohite Nathan A. Moody
author_sort	Hisato Yamaguchi
title	Active bialkali photocathodes on free-standing graphene substrates
title_short	Active bialkali photocathodes on free-standing graphene substrates
title_full	Active bialkali photocathodes on free-standing graphene substrates
title_fullStr	Active bialkali photocathodes on free-standing graphene substrates
title_full_unstemmed	Active bialkali photocathodes on free-standing graphene substrates
title_sort	active bialkali photocathodes on free-standing graphene substrates
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/4513de9448b343a68411e91a8ef5b246
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Active bialkali photocathodes on free-standing graphene substrates

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