期刊
JAPANESE JOURNAL OF APPLIED PHYSICS
卷 47, 期 1, 页码 59-63出版社
JAPAN SOC APPLIED PHYSICS
DOI: 10.1143/JJAP.47.59
关键词
delafossite; single-doping; double-doping; X-ray diffraction; thermoelectric properties
We have studied the effects of doping on the high-temperature thermoelectric properties of the delafossite-type oxide CuCrO2. The single or double doping of divalent cations for Cr3+ ions was carried out to introduce hole carriers. For the first step, we measured the electrical conductivity sigma and Seebeck coefficient S of single-doped samples, and calculated the power factor P = sigma S-2, Mg-, Zn-, Ca-, Ni-, and Co-doped samples showed a higher power factor than CuCrO2, while the Fe-, V-, and Mn- doped samples exhibited a lower power factor. The maximum power factor P = 2.36 x 10-4 W/mK(2)
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