Thermoelectric properties of n-type Ca1-xBixMn 1-ySiyO3-δ (x = y = 0.00, 0.02, 0.03, 0.04, and 0.05) system

Ankam Bhaskar; Chia Jyi Liu; J. J. Yuan; Ching Lin Chang

doi:10.1016/j.jallcom.2012.10.078

Thermoelectric properties of n-type Ca_1-xBi_xMn _1-ySi_yO_3-δ (x = y = 0.00, 0.02, 0.03, 0.04, and 0.05) system

Ankam Bhaskar, Chia Jyi Liu, J. J. Yuan, Ching Lin Chang

Department of Physics

Research output: Contribution to journal › Article

14 Citations (Scopus)

Abstract

Polycrystalline samples of Ca_1-xBi_xMn _1-ySi_yO_{3 δ} (x = y = 0.00, 0.02, 0.03, 0.04, and 0.05) are prepared by conventional solid state reactions. Thermoelectric properties are measured at 300-700 K. All the samples are single phase with an orthorhombic structure. Thermopower of all the samples is negative, indicating that predominant carriers are electrons over the entire temperature range. Among the samples, Ca_0.98Bi_0.02Mn _0.98Si_0.02O_{3 δ} has the highest dimensionless figure of merit ZT = 0.02. This value represents an improvement of about 162% with respect to the parent compound of CaMnO_3δ at 300 K.

Original language	English
Pages (from-to)	236-239
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	552
DOIs	https://doi.org/10.1016/j.jallcom.2012.10.078
Publication status	Published - 2013 Mar 5

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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Bhaskar, A., Liu, C. J., Yuan, J. J., & Chang, C. L. (2013). Thermoelectric properties of n-type Ca_1-xBi_xMn _1-ySi_yO_3-δ (x = y = 0.00, 0.02, 0.03, 0.04, and 0.05) system. Journal of Alloys and Compounds, 552, 236-239. https://doi.org/10.1016/j.jallcom.2012.10.078

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title = "Thermoelectric properties of n-type Ca1-xBixMn 1-ySiyO3-δ (x = y = 0.00, 0.02, 0.03, 0.04, and 0.05) system",

abstract = "Polycrystalline samples of Ca1-xBixMn 1-ySiyO3 δ (x = y = 0.00, 0.02, 0.03, 0.04, and 0.05) are prepared by conventional solid state reactions. Thermoelectric properties are measured at 300-700 K. All the samples are single phase with an orthorhombic structure. Thermopower of all the samples is negative, indicating that predominant carriers are electrons over the entire temperature range. Among the samples, Ca0.98Bi0.02Mn 0.98Si0.02O3 δ has the highest dimensionless figure of merit ZT = 0.02. This value represents an improvement of about 162% with respect to the parent compound of CaMnO3δ at 300 K.",

author = "Ankam Bhaskar and Liu, {Chia Jyi} and Yuan, {J. J.} and Chang, {Ching Lin}",

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T1 - Thermoelectric properties of n-type Ca1-xBixMn 1-ySiyO3-δ (x = y = 0.00, 0.02, 0.03, 0.04, and 0.05) system

AU - Bhaskar, Ankam

AU - Liu, Chia Jyi

AU - Yuan, J. J.

AU - Chang, Ching Lin

PY - 2013/3/5

Y1 - 2013/3/5

N2 - Polycrystalline samples of Ca1-xBixMn 1-ySiyO3 δ (x = y = 0.00, 0.02, 0.03, 0.04, and 0.05) are prepared by conventional solid state reactions. Thermoelectric properties are measured at 300-700 K. All the samples are single phase with an orthorhombic structure. Thermopower of all the samples is negative, indicating that predominant carriers are electrons over the entire temperature range. Among the samples, Ca0.98Bi0.02Mn 0.98Si0.02O3 δ has the highest dimensionless figure of merit ZT = 0.02. This value represents an improvement of about 162% with respect to the parent compound of CaMnO3δ at 300 K.

AB - Polycrystalline samples of Ca1-xBixMn 1-ySiyO3 δ (x = y = 0.00, 0.02, 0.03, 0.04, and 0.05) are prepared by conventional solid state reactions. Thermoelectric properties are measured at 300-700 K. All the samples are single phase with an orthorhombic structure. Thermopower of all the samples is negative, indicating that predominant carriers are electrons over the entire temperature range. Among the samples, Ca0.98Bi0.02Mn 0.98Si0.02O3 δ has the highest dimensionless figure of merit ZT = 0.02. This value represents an improvement of about 162% with respect to the parent compound of CaMnO3δ at 300 K.

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