组成对(TlGaSe2)1 - x(TlGaS2)x(0≤x≤1)固溶体中电荷输运的影响

IF 0.9 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
S. M. Asadov, S. N. Mustafaeva
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引用次数: 0

摘要

我们合成了多晶(TlGaSe2) 1-x (TlGaS2)x (x = 0-1)固溶体,并用Bridgman-Stockbarger法生长单晶。研究了该固溶体单晶样品在频率为f = 5 × 104 ~ 3.5 × 107 Hz的交流电场中的介电性能。我们证明了(TlGaSe2) 1-x (TlGaS2)x固溶体复介电常数的弛豫行为,发现了其介电损耗的性质,并确定了其跳变电荷输运机制。随着x的增大,(TlGaSe2) 1-x (TlGaS2)x晶体的电导率和晶体带隙局域态间载流子跳跃的平均距离和时间减小,而费米能级局域态能量的散射和密度增大。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Effect of Composition on Charge Transport in (TlGaSe2)1–x(TlGaS2)x (0 ≤ x ≤ 1) Solid Solutions

Effect of Composition on Charge Transport in (TlGaSe2)1–x(TlGaS2)x (0 ≤ x ≤ 1) Solid Solutions

We have synthesized polycrystalline (TlGaSe2)1–x(TlGaS2)x (x = 0–1) solid solutions and used them to grow single crystals by the Bridgman–Stockbarger method. The dielectric properties of single-crystal samples of the solid solutions have been studied in ac electric fields in the frequency range f = 5 × 104 to 3.5 × 107 Hz. We have demonstrated relaxation behavior of the complex dielectric permittivity of the (TlGaSe2)1–x(TlGaS2)x solid solutions, found out the nature of the dielectric loss in them, and identified the hopping charge transport mechanism in them. With increasing x, the electrical conductivity of the (TlGaSe2)1–x(TlGaS2)x crystals and the average distance and time of carrier hopping between localized states in the band gap of the crystals decrease, whereas the scatter in the energy of Fermi level localized states and their density increase.

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来源期刊
Inorganic Materials
Inorganic Materials 工程技术-材料科学:综合
CiteScore
1.40
自引率
25.00%
发文量
80
审稿时长
3-6 weeks
期刊介绍: Inorganic Materials is a journal that publishes reviews and original articles devoted to chemistry, physics, and applications of various inorganic materials including high-purity substances and materials. The journal discusses phase equilibria, including P–T–X diagrams, and the fundamentals of inorganic materials science, which determines preparatory conditions for compounds of various compositions with specified deviations from stoichiometry. Inorganic Materials is a multidisciplinary journal covering all classes of inorganic materials. The journal welcomes manuscripts from all countries in the English or Russian language.
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