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1、北京交通大學(xué)碩士學(xué)位論文半導(dǎo)體納米晶的制備及其性能的研究姓名：唐愛偉申請學(xué)位級別：碩士專業(yè)：光學(xué)指導(dǎo)教師：滕楓20060301北京交通大掌碩士學(xué)位論文在標(biāo)記木瓜蛋白酶前后納米晶的熒光光譜和吸收光譜的變化情況，結(jié)果發(fā)現(xiàn)標(biāo)記木瓜蛋白酶分子后的納米晶的吸收光譜和熒光光譜均有藍(lán)移現(xiàn)象發(fā)生，并且發(fā)現(xiàn)標(biāo)記了木瓜蛋白酶之后的納米晶的吸收光譜變得更加平坦，證實了核殼結(jié)構(gòu)的納米晶與木瓜蛋白酶之問發(fā)生了結(jié)合反應(yīng)。4、采用Peng等人的方法在有機(jī)體系ToP0廠rOP中合成了cdse納米晶，并將其作為發(fā)光層，Alq3作為電子傳輸層和BCP作為空穴阻擋層制備了多層電致發(fā)光器件：Glass／ITO／PED
2、OT：Pss／cdse／BcP／～q3，AJ和單層器件：G1as“ITO／PEDOT：PSS／cdse／舢，比較了它們的發(fā)光特性，發(fā)現(xiàn)cdSe納米晶的光致發(fā)光光譜、單層器件以及多層器件的電致發(fā)光光譜幾乎覆蓋了整個可見光區(qū)，器件的發(fā)光顏色近于白色，而且多層器件的發(fā)光強(qiáng)度較單層器件有明顯提高，且發(fā)現(xiàn)器件的色坐標(biāo)隨著驅(qū)動電壓的增加有所變化。關(guān)鍵詞：半導(dǎo)體納米晶；cdse；表征；光電導(dǎo)；生物標(biāo)迫：電致發(fā)光北京變通大學(xué)碩士掌位論文Abstractsemiconductornanocrystalshavecxhibiteduniquephysicalandchemicalpropertie
3、sinthepastfewdecades，givingrisetonumerouspotentialapplicationsjnphysics，elec“Dnics，chemistryandbjology．ThusthejnVestigationonsynthesjsofsemiconductornanocrystalshasbecomeanactiVefield．Inthethesis，semiconductornanocrystalsweresynlhesizedinaqueoussolutionbyatraditionalc0110idchemicalmethod，and
4、theirstructureandluminescencepropertieswereinvestigated．WeseaI℃hedaftertheapplicationsofsemiconductornanocrystalsinoptoelectronicsandbio—labeljng．Resul據(jù)aresummafjzedaSfollows：1．CdSenanocrystalsweresynthesjzedinaqueoussolutionbyusing2-meI℃apto。acetateacidasthestabjlizer．Core／shellstructumlCdS
5、“CdSandcore／Shell／shellstmcturalCdSe／CdS／zIlSnaJlocrystalsweresynthesizedwithCdSeasthecorematerial．x-raypowerdiffI’action(xRD)，x—rayphotoelectronspectra(xPs)andtransmissionelectronmjcroscopy(TEM)wereusedtocharacterjzet11ejrcrystaUoidstructures，surfaceconstitutes，shapeandsizedistribution．Thep
6、hotoluminescencespectraandabsorptionspectrawereemployedtostudytheluminescenceandabsorptionproperties，andtheresultsindjcatedthatthe1uminescenceintensitiesofcore／shellCdSe／CdSnanocrystalsandcore／shell／shellCdSc／CdS／ZnSnaIlocrystalswereenhallcedgreatlyincomparisonwiththeuncoatedCdSenanocrystals
7、，andthered-shiftappearedintheemissionpeakandabsorptionpeak．ThisindicatedthatthesurfacecoatingplayedadistinctpaninpassiViation．1naddition，weinvestigatedtheinfluenceofdifFerentpreparationconditionsonluminescencepropertiesofCdSenanocrystals，andfoundth
