Modeling the vertical Bridgman growth of cadmium zinc telluride I. Quasi-steady analysis of heat transfer and convection

Satheesh Kuppurao, Simon Brandon, Jeffrey J. Derby

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A quasi-steady-state analysis of the vertical Bridgman growth of large-diameter, cadmium zinc telluride is conducted using a finite element model which accounts for the details of heat transfer, melt convection, and solid/liquid interface shape. Large radial gradients are shown to dominate the temperature field in the solid, while convection flattens the radial temperature distribution in the melt. Concave interface shapes are predicted to arise from the thermal conductivity mismatch between solid and liquid. The shape of the solid/liquid interface is sensitive to the growth rate due to the importance of latent heat release.

Original languageEnglish (US)
Pages (from-to)93-102
Number of pages10
JournalJournal of Crystal Growth
Issue number1-2
StatePublished - Oct 1 1995

Bibliographical note

Funding Information:
This work was supportedin part by Johnson MattheyE lectronicsI,n c., underc ontracMt DA972-91-C-0046,I R Materials Producibility,f rom the AdvancedR esearchP rojectsA gencyM, icroelectron-ics TechnologyO ffice,a ndby the NationalS cience Foundationu nder grant number DMR-9058386. Computationrael sourcews erep rovidedb y theU ni-versityo f MinnesotSau percomputIenrs titutea ndt he ArmyH ighP erformancCeo mputinRg esearcCh enter undert hea uspiceso f the Departmenotf the Army, Army ResearchL aboratoryc ooperativaeg reement DAAH04-95-2-000/ 3co ntractD AAH04-95-C-0008, thec ontenot f whichd oesn otn ecessarilrye flectt he positiono r policyo f theg overnmenatn, dn o official endorsemensth ouldb e inferred.S B acknowledges supporbt y The Fundf or theP romotiono f Research at theT echniona ndb y The Centerf or Absorptionin ScienceM, inistryo f ImmigranAt bsorptionS, tateo f Israel.S K gratefullya cknowledgeths eh ospitalitoyf SB andt hef acultya nds taffo f Technion.


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