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Title: Basal-plane thermal conductivity of nanocrystalline and amorphized thin germanane

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4963704· OSTI ID:1327610
 [1];  [2];  [3]; ORCiD logo [3];  [4];  [1];  [1];  [2];  [5];  [3];  [4]; ORCiD logo [6];  [2]; ORCiD logo [1]
  1. Univ. of Texas, Austin, TX (United States). Dept. of Mechanical Engineering
  2. The Ohio State Univ., Columbus, OH (United States); Dept. of Chemistry
  3. French Atomic and Alternative Energy Commission, Grenoble (France)
  4. Boston College, Chestnut Hill, MA (United States). Dept. of Physics
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  6. The Ohio State Univ., Columbus, OH (United States). Dept. of Mechanical and Aerospace Engineering

Recently, we synthesized Germanane (GeH), a hydrogen-terminated layered germanium structure. We employed a four-probe thermal transport measurement method to obtain the basal-plane thermal conductivity of thin exfoliated GeH flakes and correlated the measurement results with the crystal structure. Furthermore, the obtained thermal conductivity increases with increasing temperature, suggesting that extrinsic grain boundary and defect scattering dominate intrinsic phonon-phonon scattering. Annealing a polycrystalline GeH sample at 195 C caused it to become amorphous, reducing the room-temperature thermal conductivity from 0.53± 0.03 W m-1 K-1, which is close to the value calculated for 3.3 nm grain size, to 0.29± 0.02 W m-1 K-1, which approaches the calculated amorphous limit in the basal plane thermal conductivity.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725; FG02-07ER46377
OSTI ID:
1327610
Alternate ID(s):
OSTI ID: 1327552
Journal Information:
Applied Physics Letters, Vol. 109, Issue 13; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

References (38)

Effect of quantum-well structures on the thermoelectric figure of merit journal May 1993
ShengBTE: A solver of the Boltzmann transport equation for phonons journal June 2014
Measurement of the anisotropic thermal conductivity of molybdenum disulfide by the time-resolved magneto-optic Kerr effect journal December 2014
Measuring Thermal and Thermoelectric Properties of One-Dimensional Nanostructures Using a Microfabricated Device journal September 2003
Thermal Conductivity and Phonon Transport in Suspended Few-Layer Hexagonal Boron Nitride journal January 2013
In-plane thermal conductivity of disordered layered WSe2 and (W)x(WSe2)y superlattice films journal October 2007
CRC Handbook of Thermoelectrics book January 2017
Effect of nitrogen and vacancy defects on the thermal conductivity of diamond: An ab initio Green's function approach journal September 2014
Progress, Challenges, and Opportunities in Two-Dimensional Materials Beyond Graphene journal March 2013
Evidence for Germanene growth on epitaxial hexagonal (h)-AlN on Ag(1 1 1) journal January 2016
Van der Waals heterostructures journal July 2013
Stability and Exfoliation of Germanane: A Germanium Graphane Analogue journal March 2013
Semiconducting black phosphorus: synthesis, transport properties and electronic applications journal January 2015
The structure and amorphization of germanane journal January 2014
Scattering of phonons by vacancies journal November 1987
Thermal properties of graphene and nanostructured carbon materials journal August 2011
Quantum Oscillations and Hall Anomaly of Surface States in the Topological Insulator Bi2Te3 journal July 2010
Measurement of mobility in dual-gated MoS2 transistors journal March 2013
Anisotropic in-plane thermal conductivity observed in few-layer black phosphorus journal October 2015
Buckled Germanene Formation on Pt(111) journal May 2014
Anisotropic in-plane thermal conductivity of black phosphorus nanoribbons at temperatures higher than 100 K journal October 2015
Elastic wave behavior across linear slip interfaces journal November 1980
Epitaxial growth of a silicene sheet journal November 2010
Four-probe measurements of the in-plane thermoelectric properties of nanofilms journal March 2007
Lower limit to the thermal conductivity of disordered crystals journal September 1992
Silicene field-effect transistors operating at room temperature journal February 2015
Science and technology roadmap for graphene, related two-dimensional crystals, and hybrid systems journal January 2015
Effects of Surface Band Bending and Scattering on Thermoelectric Transport in Suspended Bismuth Telluride Nanoplates journal October 2013
In-Plane Transport and Enhanced Thermoelectric Performance in Thin Films of the Topological Insulators Bi 2 Te 3 and Bi 2 Se 3 journal October 2010
Emerging challenges and materials for thermal management of electronics journal May 2014
Basal-plane thermal conductivity of few-layer molybdenum disulfide journal May 2014
Anisotropic Thermal Conductivity of Exfoliated Black Phosphorus journal October 2015
A four-probe thermal transport measurement method for nanostructures journal April 2015
Silicene: Compelling Experimental Evidence for Graphenelike Two-Dimensional Silicon journal April 2012
Thermal conductivity and phonon linewidths of monolayer MoS 2 from first principles journal December 2013
Science and technology roadmap for graphene, related two-dimensional crystals, and hybrid systems text January 2015
Measurement of mobility in dual-gated MoS2 transistors text January 2013
Thermal Conductivity and Phonon Transport in Suspended Few-Layer Hexagonal Boron Nitride text January 2013

Cited By (4)

Recent Progress on Germanene and Functionalized Germanene: Preparation, Characterizations, Applications, and Challenges journal February 2019
Tunable gap in stable arsenene nanoribbons opens the door to electronic applications journal January 2019
Identification of turbostratic twisting in germanane journal January 2019
Optoelectronic properties of methyl-terminated germanane journal July 2019

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