Anodic electrode reaction of p-type silicon in 1-ethyl-3-methylimidazolium fluorohydrogenate room-temperature ionic liquid

Tetsuya Tsuda; Toshiyuki Nohira; Koji Amezawa; Kan Hachiya; Rika Hagiwara; Ofer Raz; Yair Ein-Eli

doi:10.1016/j.electacta.2007.12.027

Anodic electrode reaction of p-type silicon in 1-ethyl-3-methylimidazolium fluorohydrogenate room-temperature ionic liquid

Tetsuya Tsuda, Toshiyuki Nohira, Koji Amezawa, Kan Hachiya, Rika Hagiwara, Ofer Raz, Yair Ein-Eli

IMRAM - Division of Process and System Engineering

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

16 Citations (Scopus)

Abstract

The anodic electrode behavior for a p-type silicon single crystal electrode ((1 0 0), ρ = 0.01-0.02 Ω cm, boron doped) was examined in the 1-ethyl-3-methylimidazolium fluorohydrogenate, EtMeIm(FH)_2.3F, room-temperature ionic liquid (RTIL). The electrochemical behavior was very similar to that in conventional HF aqueous solution. After the anodic electrode reaction, the Si electrode was uniformly covered with a mesoporous Si layer having a pore size of ∼25 nm. The mesoporous layer did not exhibit a photoluminescence spectrum in the visible region due to the lack of Si-H termination. However, after chemical treatment with an ethanolic HF solution, a subset of the porous Si samples showed a very weak photoluminescence.

Original language	English
Pages (from-to)	3650-3655
Number of pages	6
Journal	Electrochimica Acta
Volume	53
Issue number	10
DOIs	https://doi.org/10.1016/j.electacta.2007.12.027
Publication status	Published - 2008 Apr 1

Keywords

Anodic electrode reaction
EtMeIm(FH)F
Photoluminescence
Porous silicon
Room-temperature ionic liquid (RTIL)

Access to Document

10.1016/j.electacta.2007.12.027

Cite this

@article{4753bc93a32b4d19a8fd3d6680769466,

title = "Anodic electrode reaction of p-type silicon in 1-ethyl-3-methylimidazolium fluorohydrogenate room-temperature ionic liquid",

abstract = "The anodic electrode behavior for a p-type silicon single crystal electrode ((1 0 0), ρ = 0.01-0.02 Ω cm, boron doped) was examined in the 1-ethyl-3-methylimidazolium fluorohydrogenate, EtMeIm(FH)2.3F, room-temperature ionic liquid (RTIL). The electrochemical behavior was very similar to that in conventional HF aqueous solution. After the anodic electrode reaction, the Si electrode was uniformly covered with a mesoporous Si layer having a pore size of ∼25 nm. The mesoporous layer did not exhibit a photoluminescence spectrum in the visible region due to the lack of Si-H termination. However, after chemical treatment with an ethanolic HF solution, a subset of the porous Si samples showed a very weak photoluminescence.",

keywords = "Anodic electrode reaction, EtMeIm(FH)F, Photoluminescence, Porous silicon, Room-temperature ionic liquid (RTIL)",

author = "Tetsuya Tsuda and Toshiyuki Nohira and Koji Amezawa and Kan Hachiya and Rika Hagiwara and Ofer Raz and Yair Ein-Eli",

note = "Funding Information: This work was financially supported by a Grant-in-Aid for Scientific Research for Priority Area “Science of Ionic Liquids” from Japanese Ministry of Education, Culture, Sports, Science and Technology (RH and TN) and by the Israel Science Foundation, Grant No. 503/4 (YEE). The authors gratefully acknowledge Professor Charles L. Hussey of The University of Mississippi (USA) for providing helpful suggestions about this article.",

year = "2008",

month = apr,

day = "1",

doi = "10.1016/j.electacta.2007.12.027",

language = "English",

volume = "53",

pages = "3650--3655",

journal = "Electrochimica Acta",

issn = "0013-4686",

publisher = "Elsevier Ltd.",

number = "10",

}

TY - JOUR

T1 - Anodic electrode reaction of p-type silicon in 1-ethyl-3-methylimidazolium fluorohydrogenate room-temperature ionic liquid

AU - Tsuda, Tetsuya

AU - Nohira, Toshiyuki

AU - Amezawa, Koji

AU - Hachiya, Kan

AU - Hagiwara, Rika

AU - Raz, Ofer

AU - Ein-Eli, Yair

N1 - Funding Information: This work was financially supported by a Grant-in-Aid for Scientific Research for Priority Area “Science of Ionic Liquids” from Japanese Ministry of Education, Culture, Sports, Science and Technology (RH and TN) and by the Israel Science Foundation, Grant No. 503/4 (YEE). The authors gratefully acknowledge Professor Charles L. Hussey of The University of Mississippi (USA) for providing helpful suggestions about this article.

PY - 2008/4/1

Y1 - 2008/4/1

N2 - The anodic electrode behavior for a p-type silicon single crystal electrode ((1 0 0), ρ = 0.01-0.02 Ω cm, boron doped) was examined in the 1-ethyl-3-methylimidazolium fluorohydrogenate, EtMeIm(FH)2.3F, room-temperature ionic liquid (RTIL). The electrochemical behavior was very similar to that in conventional HF aqueous solution. After the anodic electrode reaction, the Si electrode was uniformly covered with a mesoporous Si layer having a pore size of ∼25 nm. The mesoporous layer did not exhibit a photoluminescence spectrum in the visible region due to the lack of Si-H termination. However, after chemical treatment with an ethanolic HF solution, a subset of the porous Si samples showed a very weak photoluminescence.

AB - The anodic electrode behavior for a p-type silicon single crystal electrode ((1 0 0), ρ = 0.01-0.02 Ω cm, boron doped) was examined in the 1-ethyl-3-methylimidazolium fluorohydrogenate, EtMeIm(FH)2.3F, room-temperature ionic liquid (RTIL). The electrochemical behavior was very similar to that in conventional HF aqueous solution. After the anodic electrode reaction, the Si electrode was uniformly covered with a mesoporous Si layer having a pore size of ∼25 nm. The mesoporous layer did not exhibit a photoluminescence spectrum in the visible region due to the lack of Si-H termination. However, after chemical treatment with an ethanolic HF solution, a subset of the porous Si samples showed a very weak photoluminescence.

KW - Anodic electrode reaction

KW - EtMeIm(FH)F

KW - Photoluminescence

KW - Porous silicon

KW - Room-temperature ionic liquid (RTIL)

UR - http://www.scopus.com/inward/record.url?scp=39149097497&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=39149097497&partnerID=8YFLogxK

U2 - 10.1016/j.electacta.2007.12.027

DO - 10.1016/j.electacta.2007.12.027

M3 - Article

AN - SCOPUS:39149097497

SN - 0013-4686

VL - 53

SP - 3650

EP - 3655

JO - Electrochimica Acta

JF - Electrochimica Acta

IS - 10

ER -

Anodic electrode reaction of p-type silicon in 1-ethyl-3-methylimidazolium fluorohydrogenate room-temperature ionic liquid

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this