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Title: Impact of Molecular Dynamics Simulations on Research and Development of Semiconductor Materials

Journal Article · · MRS Advances
DOI:https://doi.org/10.1557/adv.2019.360· OSTI ID:1570297

Atomic scale defects critically limit performance of semiconductor materials. To improve materials, defect effects and defect formation mechanisms must be understood. In this paper, we demonstrate multiple examples where molecular dynamics simulations have effectively addressed these issues that were not well addressed in prior experiments. In the first case, we report our recent progress on modelling graphene growth, where we found that defects in graphene are created around periphery of islands throughout graphene growth, not just in regions where graphene islands impinge as believed previously. In the second case, we report our recent progress on modelling TlBr, where we discovered that under an electric field, edge dislocations in TlBr migrate in both slip and climb directions. The climb motion ejects extensive vacancies that can cause the rapid aging of the material seen in experiments. In the third case, we discovered that the growth of InGaN films on (0001) surfaces suffers from a serious polymorphism problem that creates enormous amounts of defects. Growth on ($$11\bar{2}0$$) surfaces, on the other hand, results in single crystalline wurtzite films without any of these defects. In the fourth case, we first used simulations to derive dislocation energies that do not possess any noticeable statistical errors, and then used these error-free methods to discover possible misuse of misfit dislocation theory in past thin film studies. Lastly, we highlight the significance of molecular dynamics simulations in reducing defects in the design space of nanostructures.

Research Organization:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1570297
Report Number(s):
SAND-2019-9625J; applab; 678548; TRN: US2001382
Journal Information:
MRS Advances, Vol. 4, Issue 61-62; ISSN 2059-8521
Publisher:
Materials Research Society (MRS)Copyright Statement
Country of Publication:
United States
Language:
English

References (64)

Growth of zinc selenide single crystal by the modified Piper and Polich sublimation method journal July 1998
Mechanical properties of thin films journal November 1989
Atomistic simulations of the vapor deposition of Ni/Cu/Ni multilayers: The effects of adatom incident energy journal August 1998
Defects in Semiconductors: Some Fatal, Some Vital journal August 1998
Ionic current and polarization effect in TlBr journal February 2013
An atomistically validated continuum model for strain relaxation and misfit dislocation formation journal June 2016
The stability of TlBr detectors at low temperature
  • Dönmez, Burçin; He, Zhong; Kim, Hadong
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 623, Issue 3 https://doi.org/10.1016/j.nima.2010.08.024
journal November 2010
Molecular Dynamics Simulations of CdTe / CdS Heteroepitaxy - Effect of Substrate Orientation journal April 2016
Line Energies of 30°- and 90°-Partial Dislocations in Silicon and Germanium journal June 1993
Defect-reduced green GaInN/GaN light-emitting diode on nanopatterned sapphire journal April 2011
Effects of Dislocation Interactions: Application to the Period-Doubled Core of the 90° Partial in Silicon journal June 1998
Polytypes in GaN films grown by metalorganic chemical vapor deposition on (0001) sapphire substrate journal August 1998
An analytical bond-order potential for the copper–hydrogen binary system journal January 2015
A prediction of dislocation-free CdTe/CdS photovoltaic multilayers via nano-patterning and composition grading: Prediction of dislocation-free CdTe/CdS photovoltaic multilayers journal May 2015
Atomistic calculations of dislocation core energy in aluminium journal February 2017
Atomic and electronic structures of the 90° partial dislocation in silicon journal October 1992
Interfacial stability and misfit dislocation formation in InAs/GaAs(110) heteroepitaxy journal August 1998
Graphene: Status and Prospects journal June 2009
Thallium Bromide Nuclear Radiation Detector Development journal August 2009
Metalorganic Vapor Phase Epitaxy of III-Nitride Light-Emitting Diodes on Nanopatterned AGOG Sapphire Substrate by Abbreviated Growth Mode journal July 2009
Anisotropic Elastic Interactions of a Periodic Dislocation Array journal June 2001
An analytical bond-order potential for carbon journal May 2015
Molecular dynamics studies of InGaN growth on nonpolar ( 11 2 ¯ 0 ) GaN surfaces journal January 2018
Polytypism in epitaxially grown gallium nitride journal January 2000
Grains and grain boundaries in single-layer graphene atomic patchwork quilts journal January 2011
Extremely high thermal conductivity of graphene: Prospects for thermal management applications in nanoelectronic circuits journal April 2008
Point defects in Cd(Zn)Te and TlBr: Theory journal September 2013
Polarization Phenomena in TlBr Detectors journal August 2009
Periodic image effects in dislocation modelling journal January 2003
Atomic scale structure of sputtered metal multilayers journal November 2001
Molecular dynamics studies of defect formation during heteroepitaxial growth of InGaN alloys on (0001) GaN surfaces journal May 2017
Period-Doubled Structure for the 90 ° Partial Dislocation in Silicon journal July 1997
A bond-order potential for the Al–Cu–H ternary system journal January 2018
A novel wavelength-adjusting method in InGaN-based light-emitting diodes journal December 2013
Atomic structure of dislocations in silicon, germanium and diamond journal June 1990
Temperature Dependence in the Long-Term Stability of the TlBr Detector journal August 2009
Polarization effects in thallium bromide x-ray detectors journal September 2010
Materials and growth issues for high-performance nonpolar and semipolar light-emitting devices journal January 2012
Ab Initio Study of Screw Dislocations in Mo and Ta: A New Picture of Plasticity in bcc Transition Metals journal February 2000
Grain Boundary Mapping in Polycrystalline Graphene journal March 2011
Structure and Energy of the 90 ° Partial Dislocation in Diamond: A Combined Ab Initio and Elasticity Theory Analysis journal June 2000
Interaction of impurities with dislocation cores in silicon journal March 1991
Cadmium zinc telluride and its use as a nuclear radiation detector material journal April 2001
When group-III nitrides go infrared: New properties and perspectives journal July 2009
Core energy and Peierls stress of a screw dislocation in bcc molybdenum: A periodic-cell tight-binding study journal September 2004
Stillinger-Weber potential for the II-VI elements Zn-Cd-Hg-S-Se-Te journal August 2013
III-nitride core–shell nanowire arrayed solar cells journal April 2012
Strain influenced indium composition distribution in GaN/InGaN core-shell nanowires journal November 2010
Degradation effects in TlBr single crystals under prolonged bias voltage
  • Kozlov, V.; Kemell, M.; Vehkamäki, M.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 576, Issue 1 https://doi.org/10.1016/j.nima.2007.01.110
journal June 2007
The Impact of Tellurium Supply on Cadmium Telluride Photovoltaics journal May 2010
Green light emission from InGaN multiple quantum wells grown on GaN pyramidal stripes using selective area epitaxy journal November 2008
Visualization and analysis of atomistic simulation data with OVITO–the Open Visualization Tool journal December 2009
Carbon Nanotubes--the Route Toward Applications journal August 2002
Theoretical investigations of a highly mismatched interface: SiC/Si(001) journal November 2003
Canonical dynamics: Equilibrium phase-space distributions journal March 1985
First-Principles Calculations of Dislocations in Semiconductors journal June 1993
Simultaneous Control of Ionic and Electronic Conductivity in Materials: Thallium Bromide Case Study journal June 2012
A method for suppressing polarization phenomena in TlBr detectors
  • Hitomi, Keitaro; Shoji, Tadayoshi; Niizeki, Yoshio
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 585, Issue 1-2 https://doi.org/10.1016/j.nima.2007.11.012
journal January 2008
Strain relaxation in ultrathin films: A modified theory of misfit-dislocation energetics journal May 1993
Role of core polarization curvature of screw dislocations in determining the Peierls stress in bcc Ta: A criterion for designing high-performance materials journal April 2003
Computer Simulations of Dislocations book November 2006
Mechanical Properties of Thin Films journal August 1990
Anisotropic Elastic Interactions of a Periodic Dislocation Array text January 2001
Polarization phenomena in TlBr detectors
  • Hitomi, Keitaro; Kikuchi, Yohei; Shoji, Tadayoshi
  • 2008 IEEE Nuclear Science Symposium and Medical Imaging conference (2008 NSS/MIC), 2008 IEEE Nuclear Science Symposium Conference Record https://doi.org/10.1109/nssmic.2008.4775149
conference October 2008

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