Work function lowering of LaB by monolayer hexagonal boron nitride coating for improved photo- and thermionic-cathodes

Yamaguchi, Hisato*; Yusa, Ryunosuke*; Wang, G.*; Pettes, M. T.*; Liu, F.*; Tsuda, Yasutaka; Yoshigoe, Akitaka; Abukawa, Tadashi*; Moody, N. A.*; Ogawa, Shuichi*

Applied Physics Letters, 122(14), p.141901_1 - 141901_7, 2023/04

https://doi.org/10.1063/5.0142591

A lowering of work function for LaB by monolayer hexagonal BN coating is reported. Photoemission electron microcopy (PEEM) and thermionic emission electron microscopy (TEEM) both revealed that the hBN coated region of a LaB(100) single crystal has lower work function compared to the bare (i.e., non-coated) and graphene coated regions. A larger decrease of work function for the hBN coated LaB(100) compared to graphene coated LaB(100) was qualitatively supported by our density functional theory (DFT) calculations. Adding an oxide layer in the calculations improved consistency between the calculation and experimental results. We followed up our calculations with synchrotron-radiation X-ray photoelectron spectroscopy (SR-XPS) and confirmed the presence of an oxide layer on our LaB.

Hydrogen retention of V-alloy under plasma irradiation of JFT-2M

Oda, Tomomasa*; Hirohata, Yuko*; Hino, Tomoaki*; Sengoku, Seio

Shinku, 43(3), p.325 - 328, 2000/03

https://doi.org/10.3131/jvsj.43.325

no abstracts in English

Durability of radiation-sterilized polymers,III;Oxidation layer determined by chemiluminescence

; ; ;

J.Appl.Polym.Sci., 31, p.1343 - 1350, 1986/00

https://doi.org/10.1002/app.1986.070310518

no abstracts in English

Statistical Studies on the Peak-Clad Temperature and Cladding Oxidation Thickness in Loss-of-Coolant Accidents Obtained by Numerical Experiments for a Typical Boiling Water Reactor

Shimooke, Takanori; ; *;

JAERI-M 7447, 58 Pages, 1977/12

JAERI-M-7447.pdf:1.55MB

no abstracts in English

Fabrication of Si(110)-162 surface by low temperature desorption of oxide layer

Suzuki, Shota; Yano, Masahiro; Uozumi, Yuki; Asaoka, Hidehito; Yamaguchi, Kenji*

no journal, , 

no abstracts in English