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Georgia Tech STEP-UP Program 2012
TheOpticalandElectronMobilityCharacteristicsofIron(III)Chloride
IntercalatedGraphene
CandiceR.HenryLearningFacilitator
CarverHighSchool
Georgia Tech STEP-UP Program 2012
Outline
• ResearchProjectDetails
• LessonPlanDetails
• LessonsLearned
Georgia Tech STEP-UP Program 2012
TheOpticalandElectronMobilityCharacteristicsofIron(III)Chloride
IntercalatedGraphene
ResearchProject
Georgia Tech STEP-UP Program 2012
Why?
• Grapheneisamazing!
• Applicationsinelectronics
• OpticalTransparencyandConductivityneedstobemodifiable
Georgia Tech STEP-UP Program 2012
How?• FeCl3Intercalatedgraphene– Optically
• Increasingthelayersofgraphenecauseittobecomelesstransparentandmoreopaque.
• Itisproposedthatmetalintercalatedgraphenewillbemoretransparentthanmultiplelayersofgraphenealone.
– ElectronMobility• ItisproposedthatTheFeCl3inbetweenthegraphenelayerswillacceptelectronsfromthegrapheneaboveandbelowitcausingthe“graphenelayerstobecomehole‐dopedandmodifyingitselectronictransportproperties”(Zou,2010)
Georgia Tech STEP-UP Program 2012
TheProcess
1. Takepre‐intercalatedmeasurements2. Intercalate
3. Takepost‐intercalatedmeasurements
Georgia Tech STEP-UP Program 2012
Results
• GoalwastoquantitativelyillustrateopticalandconductivitytrendsinFeCl3intercalatedgraphene.
• However,duetochallengesintheexperimentaldesignthetheoreticalexpectationswerenotabletobeexperimentallydetermined.
Georgia Tech STEP-UP Program 2012
Exfoliated,Epitaxial,orChemicalVaporDepositedGraphene:Guided
Research
LessonPlan
Georgia Tech STEP-UP Program 2012
LessonPlan
• OverviewofCommonCore– Textcomplexity– ElucidatingProceduralSteps– DrawingConclusions
• Problem:– Asgraphenecontinuestobestudiedforitsuniquepropertiesthereisaneedtoproduceahighqualityproductconsistentlyandinlargequantities.Therearecurrentlythreewaystofabricategraphene,butwhichoneoffersthepromiseofahighqualityandconsistentproduct?
Georgia Tech STEP-UP Program 2012
LessonPlan
Georgia Tech STEP-UP Program 2012
LessonsLearned1. Neverunderestimatetheimportanceofdetailsinlessonplanning
andkeepingalabnotebook.
2. Youcanbemoderatelyintelligentandhavenoideawhatisgoingonifyoudon’tknowspecificvocabularyorhavemuchbackgroundknowledgeofthetopic.
3. Lookingatthebigpicturecanhelpyoudevelopthemotivationtounderstandthesmalldetails.
4. ChemistryandPhysicsarerelated(andhavedifferentvocabularyforthesamethings;valenceband,conductionband…orbitalwherethevalenceelectronsare,unfilledorbitalswhereexcitedelectronsgo).
Georgia Tech STEP-UP Program 2012
AcknowledgementsDr.LeylaConrad
DirectorofEducationandDiversity,GTMRSEC
OutreachDirector,ECE
Dr.EdConradResearchGroupAdvisor
NationalScienceFoundationResearchExperienceforTeachers
Program
STEP‐UPProgramGeorgiaTech
MeredithNeviusGraduateResearchAssistant
MySTEP‐UPSupervisorPhDstudent
NirvanaEdwardsEducationalOutreach
Coordinator,ECE