Structure and electric conductivity of reduced lead–germanate, bismuth–germanate and bismuth–silicate glasses modified with potassium

Gackowska, Joanna; Gazda, Maria; Trzebiatowski, K.; Kusz, B.

doi:10.1016/j.jnoncrysol.2008.06.043

Cited by 9 publications

(9 citation statements)

References 14 publications

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“…It is pointed out that residual water and island benefit were the reasons for the stability of resistivity . The influence of glass composition and etching process on the bulk resistance of microchannel plates was reported . Most of them, however, could not be commonly agreed.…”

Section: Introductionmentioning

confidence: 99%

Conductive mechanism of reduced lead silicate glass for micro‐channel plate

Huang

Shi

Zhou

et al. 2019

Int J of Appl Glass Sci

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Lead silicate glasses reduced by hydrogen have the characteristics of conductivity like semiconductors and surface secondary electron emission. Therefore, lead silicate glass is the important material of microchannel plate (MCP) for electron multiplier element. The change of bulk resistance (BR) of lead silicate glass (LSG) with hydrogen reducing time and temperature, and hydrogen flow was investigated. The effect of various hydrogen‐reducing parameters on BR is firstly decreasing, then keeping level, and finally increasing. The tendency presents V‐shaped curve. By analyzing the surface composition and morphology of LSG, it is found that the quantity and aggregation state of lead and bismuth are the key factors determining the conductivity of LSG. It is indicated that the electrical conduction is derived from ions and electrons of LSG. The conductive mechanism, however, is different in different stages in the V‐shaped curve. The discovery of V‐shape curve and the conduction mechanism at different stages have important theoretical guiding significance for the fabrication of microchannel plates.

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Section: Introductionmentioning

confidence: 99%

Conductive mechanism of reduced lead silicate glass for micro‐channel plate

Huang

Shi

Zhou

et al. 2019

Int J of Appl Glass Sci

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“…If a certain critical grain concentration is achieved, the electron tunneling between the grains becomes possible. Bi-Si-K-O [19], Bi-Ge-K [19], Ge-Sb [28]. They have shown that for all of these oxide glasses a very similar process takes place.…”

Section: Introductionmentioning

confidence: 92%

Structure and thermoelectric properties of Bi–Te alloys obtained by novel method of oxide substrates reduction

Bochentyn

Karczewski

Miruszewski

et al. 2015

Journal of Alloys and Compounds

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“…Further reduction leads to the connecting of metal grains and to the formation of continuous, metallic layer on the surface of the glass. Thus an increase in the surface electrical conductivity, even of several orders of magnitude, is observed [3].…”

Section: Introductionmentioning

confidence: 98%

The Properties of Reduced Ge-Sb-O Glasses for Thermoelectric Devices

Bochentyn¹,

Karczewski²,

Gazda³

et al. 2014

Procedia Engineering

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The structural and electrical properties of germanium-antimonate glasses after heat treatment in hydrogen have been determined. In the case of 50GeO 2 -50Sb 2 O 3 glass reduced at 340°C even for less than 1 hour a continuous layer of antimony granules is formed and its electrical properties determine the surface conductivity of the reduced sample. The bulk electrical conductivity at 100°C of this sample was determined as 1000 Scm -1 and the Seebeck coefficient at this temperature in reference to Pt was found to be α=(17.2 0.5) μVK -1 .

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Structure and electric conductivity of reduced lead–germanate, bismuth–germanate and bismuth–silicate glasses modified with potassium

Cited by 9 publications

References 14 publications

Conductive mechanism of reduced lead silicate glass for micro‐channel plate

Conductive mechanism of reduced lead silicate glass for micro‐channel plate

Structure and thermoelectric properties of Bi–Te alloys obtained by novel method of oxide substrates reduction

The Properties of Reduced Ge-Sb-O Glasses for Thermoelectric Devices

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