Electronic insulator-conductor conversion in hydride ion-doped 12CaO·7Al2O3 by electron-beam irradiation

Katsuro Hayashi; Yoshitake Toda; Toshio Kamiya; Masahiro Hirano; Minako Yamanaka; Isao Tanaka; Takahisa Yamamoto; Hideo Hosono

doi:10.1063/1.1852723

Electronic insulator-conductor conversion in hydride ion-doped 12CaO·7Al2O3 by electron-beam irradiation

Katsuro Hayashi, Yoshitake Toda, Toshio Kamiya, Masahiro Hirano, Minako Yamanaka, Isao Tanaka, Takahisa Yamamoto, Hideo Hosono

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

We report formation of persistent carrier electrons in hydride ion (H-) -incorporated 12CaO·7Al2O3 (C12A7) by electron-beam irradiation. The electrical conductivity of H- -doped C12A7 single crystals increases with the electron-beam irradiation dose, accompanied with a green coloration attributable to a carrier electron formation. A 25 keV electron beam with a dose of ~500 μC cm-2 fully converts the conductivity in surface layers to the depth of ~4 μm. Carrier electron formation is most likely due to electron-hole pairs generated in the electron excitation volume and subsequent energy transfer to the H- ions. The estimated carrier formation yield per an incident electron is ~30. These findings may enable a fine patterning of the conductive area without photomasks and photoresists.

Original language	English
Article number	022109
Pages (from-to)	022109-1-022109-3
Journal	Applied Physics Letters
Volume	86
Issue number	2
DOIs	https://doi.org/10.1063/1.1852723
Publication status	Published - Jan 10 2005
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.1852723

Cite this

@article{a197f19fce6a444bbe86a401ca35255e,

title = "Electronic insulator-conductor conversion in hydride ion-doped 12CaO·7Al2O3 by electron-beam irradiation",

abstract = "We report formation of persistent carrier electrons in hydride ion (H-) -incorporated 12CaO·7Al2O3 (C12A7) by electron-beam irradiation. The electrical conductivity of H- -doped C12A7 single crystals increases with the electron-beam irradiation dose, accompanied with a green coloration attributable to a carrier electron formation. A 25 keV electron beam with a dose of ~500 μC cm-2 fully converts the conductivity in surface layers to the depth of ~4 μm. Carrier electron formation is most likely due to electron-hole pairs generated in the electron excitation volume and subsequent energy transfer to the H- ions. The estimated carrier formation yield per an incident electron is ~30. These findings may enable a fine patterning of the conductive area without photomasks and photoresists.",

author = "Katsuro Hayashi and Yoshitake Toda and Toshio Kamiya and Masahiro Hirano and Minako Yamanaka and Isao Tanaka and Takahisa Yamamoto and Hideo Hosono",

note = "Funding Information: This work was supported by the Grant-in-Aid for Creative Scientific Research (No. 16GS0205) from the Japanese Ministry of Education, Culture, Sports, Science and Technology.",

year = "2005",

month = jan,

day = "10",

doi = "10.1063/1.1852723",

language = "English",

volume = "86",

pages = "022109--1--022109--3",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "2",

}

TY - JOUR

T1 - Electronic insulator-conductor conversion in hydride ion-doped 12CaO·7Al2O3 by electron-beam irradiation

AU - Hayashi, Katsuro

AU - Toda, Yoshitake

AU - Kamiya, Toshio

AU - Hirano, Masahiro

AU - Yamanaka, Minako

AU - Tanaka, Isao

AU - Yamamoto, Takahisa

AU - Hosono, Hideo

N1 - Funding Information: This work was supported by the Grant-in-Aid for Creative Scientific Research (No. 16GS0205) from the Japanese Ministry of Education, Culture, Sports, Science and Technology.

PY - 2005/1/10

Y1 - 2005/1/10

N2 - We report formation of persistent carrier electrons in hydride ion (H-) -incorporated 12CaO·7Al2O3 (C12A7) by electron-beam irradiation. The electrical conductivity of H- -doped C12A7 single crystals increases with the electron-beam irradiation dose, accompanied with a green coloration attributable to a carrier electron formation. A 25 keV electron beam with a dose of ~500 μC cm-2 fully converts the conductivity in surface layers to the depth of ~4 μm. Carrier electron formation is most likely due to electron-hole pairs generated in the electron excitation volume and subsequent energy transfer to the H- ions. The estimated carrier formation yield per an incident electron is ~30. These findings may enable a fine patterning of the conductive area without photomasks and photoresists.

AB - We report formation of persistent carrier electrons in hydride ion (H-) -incorporated 12CaO·7Al2O3 (C12A7) by electron-beam irradiation. The electrical conductivity of H- -doped C12A7 single crystals increases with the electron-beam irradiation dose, accompanied with a green coloration attributable to a carrier electron formation. A 25 keV electron beam with a dose of ~500 μC cm-2 fully converts the conductivity in surface layers to the depth of ~4 μm. Carrier electron formation is most likely due to electron-hole pairs generated in the electron excitation volume and subsequent energy transfer to the H- ions. The estimated carrier formation yield per an incident electron is ~30. These findings may enable a fine patterning of the conductive area without photomasks and photoresists.

UR - http://www.scopus.com/inward/record.url?scp=13544254394&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=13544254394&partnerID=8YFLogxK

U2 - 10.1063/1.1852723

DO - 10.1063/1.1852723

M3 - Article

AN - SCOPUS:13544254394

SN - 0003-6951

VL - 86

SP - 022109-1-022109-3

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 2

M1 - 022109

ER -

Electronic insulator-conductor conversion in hydride ion-doped 12CaO·7Al2O3 by electron-beam irradiation

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this