The Role of Transport Agents in MoS2 Single Crystals

被引：46

作者：

Pisoni, Andrea ^{[1
]}

Jacimovic, Jacim ^{[1
]}

Barisic, Osor S. ^{[3
]}

Walter, Arnaud ^{[1
]}

Nafradi, Balint ^{[1
]}

Bugnon, Phillipe ^{[2
]}

Magrez, Arnaud ^{[2
]}

Berger, Helmuth ^{[2
]}

Revay, Zsolt ^{[4
]}

Forro, Laszlo ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Lab Phys Complex Matter, CH-1015 Lausanne, Switzerland

[2] Ecole Polytech Fed Lausanne, Single Crystal Growth Facil, CH-1015 Lausanne, Switzerland

[3] Inst Phys, HR-10000 Zagreb, Croatia

[4] Tech Univ Munich, Heinz Maier Leibniz Zentrum MLZ, Forsch Neutronenquelle Heinz Maier Leibnitz FRM 2, D-85747 Garching, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2015年 / 119卷 / 08期

基金：

瑞士国家科学基金会;

关键词：

TEMPERATURE-DEPENDENT RAMAN; THERMAL-CONDUCTIVITY; THERMOELECTRIC-POWER; MOLYBDENUM;

D O I：

10.1021/jp512013n

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report resistivity, thermoelectric power, and thermal conductivity of MoS2 single crystals prepared by the chemical vapor transport (CVT) method using I-2, Br-2, and TeCl4 as transport agents. The material presents low-lying donor and acceptor levels, which dominate the in-plane charge transport. Intercalates into the van der Waals gap strongly influence the interplane resistivity. Thermoelectric power displays the characteristics of strong electron-phonon interaction. A detailed theoretical model of thermal conductivity reveals the presence of a high number of defects in the MoS2 structure. We show that these defects are inherent to CVT growth method, coming mostly from the transport agent molecules inclusion as identified by total reflection X-ray fluorescence analysis (TXRF) and in-beam activation analysis (IBAA).

引用

页码：3918 / 3922

页数：5

共 30 条

[1]

[Anonymous], 1995, CHOI CHEM ORGANOMETA

[2] Large enhancement of boron carbides' seebeck coefficients through vibrational softening [J].

Aselage, TL ;

Emin, D ;

McCready, SS ;

Duncan, RV .

PHYSICAL REVIEW LETTERS, 1998, 81 (11) :2316-2319

[3] GROWTH AND CHARACTERIZATION OF N-WS2 AND NIOBIUM-DOPED P-WS2 SINGLE-CRYSTALS [J].

BAGLIO, J ;

KAMIENIECKI, E ;

DECOLA, N ;

STRUCK, C ;

MARZIK, J ;

DWIGHT, K ;

WOLD, A .

JOURNAL OF SOLID STATE CHEMISTRY, 1983, 49 (02) :166-179

[4] Intercalation chemistry of molybdenum disulfide [J].

Benavente, E ;

Santa Ana, MA ;

Mendizábal, F ;

González, G .

COORDINATION CHEMISTRY REVIEWS, 2002, 224 (1-2) :87-109

[5] MODEL FOR LATTICE THERMAL CONDUCTIVITY AT LOW TEMPERATURES [J].

CALLAWAY, J .

PHYSICAL REVIEW, 1959, 113 (04) :1046-1051

[6] Toward Low-Power Electronics: Tunneling Phenomena in Transition Metal Dichalcogenides [J].

Das, Saptarshi ;

Prakash, Abhijith ;

Salazar, Ramon ;

Appenzeller, Joerg .

ACS NANO, 2014, 8 (02) :1681-1689

[7] Enhanced Seebeck coefficient from carrier-induced vibrational softening [J].

Emin, D .

PHYSICAL REVIEW B, 1999, 59 (09) :6205-6210

[8] ELECTRONIC-PROPERTIES OF INTERCALATION COMPLEXES OF THE TRANSITION-METAL DICHALCOGENIDES [J].

FRIEND, RH ;

YOFFE, AD .

ADVANCES IN PHYSICS, 1987, 36 (01) :1-94

[9] ELECTRICAL AND MAGNETIC-PROPERTIES OF SOME 1ST ROW TRANSITION-METAL INTERCALATES OF NIOBIUM DISULFIDE [J].

FRIEND, RH ;

BEAL, AR ;

YOFFE, AD .

PHILOSOPHICAL MAGAZINE, 1977, 35 (05) :1269-1287

[10] Doping Nature of Native Defects in 1T-TiSe2 [J].

Hildebrand, B. ;

Didiot, C. ;

Novello, A. M. ;

Monney, G. ;

Scarfato, A. ;

Ubaldini, A. ;

Berger, H. ;

Bowler, D. R. ;

Renner, C. ;

Aebi, P. .

PHYSICAL REVIEW LETTERS, 2014, 112 (19)

← 1 2 3 →