13471.耦合量子點中極化子的性質(zhì)

1、分類號Q壘鯉ICS學(xué)校代碼!Q!墨魚學(xué)號圣Q!圣QQ!Q呈委茁～菱一墨復(fù)內(nèi)蒙喜民燕大學(xué)碩士學(xué)位論文耦合量子點中極化子的性質(zhì)ThePropertiesofPolaroninCoupledQuantumDot申‘請人：。李思遠(yuǎn)學(xué)科專業(yè)：物理學(xué)研究方向：凝聚態(tài)理論學(xué)位類別：學(xué)術(shù)學(xué)位指導(dǎo)教師：趙翠蘭教授論文提交日期：二。一六年六月ThePrope]rtiesofPolaroni11CoupledQu卸【1『七umDotAbsnact7nlisr

2、esearchisle鋤ingⅡlepropertiesofmepolaronincoupledsph嘶calquantIlIIldotandtheefrectoftempenltLIreonpolaron，bysolVingpreciselymeeigenene喲7equation，u11ita巧仃觚sf0咖ations鋤dV撕ationm礎(chǔ)odsFir甌tIlceigenmnction鋤dmeeigenenergyofmegroun

3、dstateofelec仃on巾hononsystemincoupledsphericaIqu觚tumdotwereobtainedbysolVingpreciselymeeigenenergyequation，unitaUtransfonnationsandVariationmethodAccordingtomecalculation，theene唱yofcoulombintemction、Ⅳasdecreasingwitllthed

4、ist鋤ce丘。om廿lecenter0fcoupledquantumdotorradiusofqu柚tumdotincreaSing；electronkineticenergy，inducedpotentialofelectron—phononintel批tionwaLsdecreaSingwimradiusofquaIltumdotincreaLsing；tllegraIldsta_teene略yofcoupledpolaronwa

5、sdecreasingwiththedistance矗DmthecenterofcoupledquantumdotorradiusofquantlJmincreasingSecondly，theeigen如nctionandtheeigenene瑪yoftheexcitedstateofelec仃on_phononsystemincoupledsphericalquantumdotwereo№inedbyusingabovemetIlo

6、ds，andcomparedtIliswithtIle鏟andstateehergyBasedonmecalculation，asthes鋤ewiththegmndstate，tIleene唱yofcoulombinteractionofexcitedstatewasdecreasingwitht11edistanceflromthecenterofcoupledquantumdotorradiusofquantumdotincreas

7、ing；inducedpotentialofelectrDn—phononinteractionw孫decreasingwithradiusofquaIltumdotincreasing，andthegroundstarCedecreaseslower；electronkineticene唱ywasdecreasingwitlradiusofquantumdotincreaSing，showingsignificantquantums曉

8、eeffect，觚dtheexcitedstateismorenotable；t11e孕鋤dstateenergywaSdecreaSingwimthedistancefbmmecenterofcoupledquantumdotorradiusofquantumincreasing，anddecreasef瓠terthantIlegroundStateAtlast，theinfluenceoftempennureonpropertyof

9、polaronincoupledsphericalqu卸tumdotwaSstudiedbyusingaboVememodsandtheelementaD，excitationtheorym礎(chǔ)odThedatashowedt11atifk丁7i岔k，bomt11egrandstateenergyandtlleexcitedstateenergyofpolaron、ⅣereincreaLsedwiththeincreasingoftlle