Electrochemical properties of phosphorus doped diamond

Yu Mukuda; Takeshi Watanabe; Akihiko Ueda; Yoshiki Nishibayashi; Yasuaki Einaga

doi:10.1016/j.electacta.2015.03.033

Electrochemical properties of phosphorus doped diamond

Yu Mukuda, Takeshi Watanabe, Akihiko Ueda, Yoshiki Nishibayashi, Yasuaki Einaga

Department of Chemistry

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

8 Citations (Scopus)

Abstract

The electrochemical properties of an n-type phosphorus doped diamond (PDD) electrode were investigated and compared with a p-type boron doped diamond (BDD) electrode. The Mott-Schottky plots in 0.1 M HClO₄ are reported and related to the energy band diagram of electrochemically pretreated BDD and PDD. These results revealed that the band position of anodically pretreated PDD corresponded to the one of anodically pretreated BDD. Moreover, it was found the flat-band potential of the anodically pretreated PDD decreased by ca. 1 V after cathodically pretreatment. The cyclic voltammetries for Ru(NH₃)₆^3+/2+ showed that electrochemical behaviors of PDD and BDD were entirely different in possible direction for charge transfer across the electrode-electrolyte inaterface. In addition, less n-type diode-like behavior was observed at the cathodically pretreated PDD than the anodically pretreated PDD. These results point out the importance of the surface chemistry controlled by electrochemical pretreatments.

Original language	English
Pages (from-to)	599-603
Number of pages	5
Journal	Electrochimica Acta
Volume	179
DOIs	https://doi.org/10.1016/j.electacta.2015.03.033
Publication status	Published - 2015 Oct 10

Keywords

Flat band potential
Phosphorus doped diamond
Surface states

ASJC Scopus subject areas

Chemical Engineering(all)
Electrochemistry

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10.1016/j.electacta.2015.03.033

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title = "Electrochemical properties of phosphorus doped diamond",

abstract = "The electrochemical properties of an n-type phosphorus doped diamond (PDD) electrode were investigated and compared with a p-type boron doped diamond (BDD) electrode. The Mott-Schottky plots in 0.1 M HClO4 are reported and related to the energy band diagram of electrochemically pretreated BDD and PDD. These results revealed that the band position of anodically pretreated PDD corresponded to the one of anodically pretreated BDD. Moreover, it was found the flat-band potential of the anodically pretreated PDD decreased by ca. 1 V after cathodically pretreatment. The cyclic voltammetries for Ru(NH3)63+/2+ showed that electrochemical behaviors of PDD and BDD were entirely different in possible direction for charge transfer across the electrode-electrolyte inaterface. In addition, less n-type diode-like behavior was observed at the cathodically pretreated PDD than the anodically pretreated PDD. These results point out the importance of the surface chemistry controlled by electrochemical pretreatments.",

keywords = "Flat band potential, Phosphorus doped diamond, Surface states",

author = "Yu Mukuda and Takeshi Watanabe and Akihiko Ueda and Yoshiki Nishibayashi and Yasuaki Einaga",

year = "2015",

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day = "10",

doi = "10.1016/j.electacta.2015.03.033",

language = "English",

volume = "179",

pages = "599--603",

journal = "Electrochimica Acta",

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TY - JOUR

T1 - Electrochemical properties of phosphorus doped diamond

AU - Mukuda, Yu

AU - Watanabe, Takeshi

AU - Ueda, Akihiko

AU - Nishibayashi, Yoshiki

AU - Einaga, Yasuaki

PY - 2015/10/10

Y1 - 2015/10/10

N2 - The electrochemical properties of an n-type phosphorus doped diamond (PDD) electrode were investigated and compared with a p-type boron doped diamond (BDD) electrode. The Mott-Schottky plots in 0.1 M HClO4 are reported and related to the energy band diagram of electrochemically pretreated BDD and PDD. These results revealed that the band position of anodically pretreated PDD corresponded to the one of anodically pretreated BDD. Moreover, it was found the flat-band potential of the anodically pretreated PDD decreased by ca. 1 V after cathodically pretreatment. The cyclic voltammetries for Ru(NH3)63+/2+ showed that electrochemical behaviors of PDD and BDD were entirely different in possible direction for charge transfer across the electrode-electrolyte inaterface. In addition, less n-type diode-like behavior was observed at the cathodically pretreated PDD than the anodically pretreated PDD. These results point out the importance of the surface chemistry controlled by electrochemical pretreatments.

AB - The electrochemical properties of an n-type phosphorus doped diamond (PDD) electrode were investigated and compared with a p-type boron doped diamond (BDD) electrode. The Mott-Schottky plots in 0.1 M HClO4 are reported and related to the energy band diagram of electrochemically pretreated BDD and PDD. These results revealed that the band position of anodically pretreated PDD corresponded to the one of anodically pretreated BDD. Moreover, it was found the flat-band potential of the anodically pretreated PDD decreased by ca. 1 V after cathodically pretreatment. The cyclic voltammetries for Ru(NH3)63+/2+ showed that electrochemical behaviors of PDD and BDD were entirely different in possible direction for charge transfer across the electrode-electrolyte inaterface. In addition, less n-type diode-like behavior was observed at the cathodically pretreated PDD than the anodically pretreated PDD. These results point out the importance of the surface chemistry controlled by electrochemical pretreatments.

KW - Flat band potential

KW - Phosphorus doped diamond

KW - Surface states

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U2 - 10.1016/j.electacta.2015.03.033

DO - 10.1016/j.electacta.2015.03.033

M3 - Article

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VL - 179

SP - 599

EP - 603

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Electrochemical properties of phosphorus doped diamond

Abstract

Keywords

ASJC Scopus subject areas

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