纳米材料与器件

Theadventofnanotechnologyisbecominganever-visibleconceptinvariousaspectsofourlives,asevidentbyitspopular(andoftenincorrect)usageinadvertising/marketingandenter-tainment.Althoughpop-culturereferencestonanotechnologyareoftenmisusedoraretotalsciencefiction,itsoriginsarederivedfromarapidlygrowingdisciplineofscienceandengi-neering.Nanotechnologycanbedefinedasthefundamentalstudyandapplicationofmaterialsdisplayinglengthscalesofmorethan100nm.Atthissize,nanoscalematerialsexhibitphysicalandchemicalpropertiesthatdiffergreatlyfromthoseoftheirbulkcounterparts.Theseinterestingpropertiescanbeadvantageouslyexploitedforanumberofapplicationsandhavesubstantialreal-worldimpactsinfieldssuchasmedicineandthosethatareenergy-related.Althoughnanotechnologyresearchisgrowingrapidlythroughouttheworld,theteachingofthissubjectislackingattheuniversitylevel,particularlyatthefirst-yearandsecond-yearlevels.Introducingnanotech-nologyearlierduringthecollegecurriculumwouldbeofimmensebenefittostudentsandtofurtherprogressinthefield.Assuch,themotivationinpreparingthisbookistointroducetheconceptofnanotechnologyinteachingwhileexposingstudentstocurrentnanotechnologyresearch.Giventheever-changingnatureofnanotechnology,researchersinthefieldneedtobeconstantlyawareofnewstudiestoupdatetheirknowledgeandtokeepcurrent.WiththeadventoftheInternet,researchdataandideasarenowreadilyaccessibleandcommu-nicatedtotherestofthefieldandserveasaplentifulsourcefornewcomerslookingtolearnmoreaboutthisexcitingfield.Thiscanbeadouble-edgedsword,however,becausethesheeramountofinformationcanbedifficulttoorganizeandprocess.Furthermore,theInternetisanonrefereedmediumand,assuch,informationneedstobetakenwithacriticalviewpoint.Fromaneducationalstandpoint,amajorchallengeisteachingstudentshowtorecognizeandcollectusefulonlineresourceswhilesimultaneouslyinstillinganintuitioninthestudentsaboutpotentiallylesscredibleorincorrectonlineresources.Motivatedbythefactsstatedhere,theauthorfelttheneedforanewperspectiveontheprogressofnanotechnologyresearch.Nanomaterialsandrelatednanoscaledevicesconstitutethecoreinfrastructureofnanoscienceandtechnology.WiththeviPREFACEdevelopmentofnanomaterialssynthesisandcharacterizationtechniques,thefundamentalknowledgebasehasgrownconsid-erably,resultinginathoroughunderstandingofnanoscalepropertiesthatcanbeusedtodevelopnoveldevicesinvariousapplicationareas.Tothisend,themajorfocusofthisbookisnanomaterialsanddevices.Wehopethistextbookwillbecomeausefultoolforstudentstobridgetheiracquiredknowledgetotheircurrentorfutureresearchactivities,becauseamajoraimofthistextistopromptresearchintopracticalapplications.Thisbookreferencesknowledgefromthreeareas:theauthor’sownresearchactivities,theselectedliterature,andInternetresources.Regardingcontentselectedfromonlineresources,wehaveperformedextensivebackgroundstudiestoverifythattheinformationiscorrect.Additionally,wealsohaveciteddirectreferencestoafewonlineresourceswithouttheoriginalsourcebeingindicatedinthereference,andforthatwemustapologizehereandacknowledgetheoriginalauthors.Ourthanksareherebyextendedtoalltheoriginalauthorswhomaybeinvolvedinthecontentsherein.Itisourdesiretopublishthistextbookformanyyearstocome,updatingfutureversionswiththenewesttrendsinnano-technologyresearch.WethankTsinghuaUniversityPressfortheirsupportthroughouttheprocessofwritingthisbook.Giventhetargetedreadershiplevel,theshortperiodofprep-aration,andtheinherentdiversitywithinthefieldofnanotech-nology,theremaybeshortcomingsthatareinevitableinthebook.Allcolleaguesandreadersareencouragedtokindlycon-tacttheauthorswithyourprofessionalopinionsandsugges-tionsfornewmaterial.DongluShiShanghaiEastHospital,TheInstituteforBiomedicalEngineering&NanoScience,TongjiUniversitySchoolofMedicine,Shanghai200120,ChinaTheMaterialsScienceandEngineeringProgram,Dept.ofMechanicalandMaterialsEngineering,CollegeofEngineeringandAppliedScience,UniversityofCincinnati,Cincinnati,OH45221,USAZizhengGuoCollegeofScience,SouthChinaAgriculturalUniversity,Guangzhou510642,ChinaNicholasBedfordDepartmentofChemistry,UniversityofMiami,CoralGables,本书全面系统地介绍了各种纳米材料和制备方法及其应用，全书英文，已同步在境外面世。