石墨烯納米帶光電性質研究.pdf

1、湖南師范大學碩士學位論文石墨烯納米帶光電性質研究姓名：彭昕祥申請學位級別：碩士專業：凝聚態物理指導教師：周光輝20090401ABSTRACTGr印hene(singlela驢r0fc村bonatoIIls)ha8beenbecomingthehot8ystembec鍆l能it8special8trllctllreaIldthephysicalpropertyGrapheneh髓nointemaldefbctswithe)(tremel

2、ythiIlandobviousquantumeff砒s，sothatith夠di玨erentcharacter扭ti岱fromothertwmdimen8iollalphysicalsys乞el璐Graplleneh嬲simil越f11nctionstothoseofcarbonnaIlotub鶴andmoleclllarelectronicdevic鶴，withoutstandiIlgand1lniqllepllysical，dl鋤

3、i耐andmechanicalpropert油，鋤dh鷦exteIlsive印plicatio璐inthedesigIlofdeViee8ofmicr伊nan0electronics，叩toelectronicsandspintronicsst砒ingfromthes礦hybridorbjttheoryforcarbonandenergybandtheomthisth豁isstlldiedtheformationofcrystalgra

4、phene(monlayerofcarbonatoms)anditselectronicstnlctllreGraphenen射loribbollsdispersjoIlshavebeenc柏cllla旭dF、lrthermore，theoptoeletronicpropertiesfor黟印henen鋤orbbonshavebeencalculatedaIlddiscllssedbyusingthed培persionrelatioll

5、sTheth鶴誨isdividedintofivechapte璐Thefirstch印teriTltroduo笛b№flythereseaurchhistoryalldthepr皓entsitllationingr印heneB塔ingonthe1inearcombination0forbitwaveflmctioIlSofcarbonatoI璐，cll印tertwDcalclllat骼theconcreteexpre鼴ionsofs礦h

6、ybridizationorbit啪lvefllnctionsof黟印heneco詞entbonds，exceptforthee)(peri。menta】manun池1】rjllg肋dpotentjalap曲catjollsof伊印heneThethirdc!h印terpresentstheekctronicstrllcture0f爭aplleneb嬲ingontheengerytheo盯by1lsingtightbindingappr

7、戧imationFlIlrthermore，Diracelectronicf打刪llah鵠beenderivedadldthepr叩erti髑0felectronshavebeendicus跎dChapterf01lriIlvestigat豁theoptoelectronicpmpertiesofFaphenenaIloribbonsAccordingt0thechaLracteristicsof盯apheneeletronicstrl

8、lctllre，wehavecaLlallatedthedispe瑙ionrelatioIl8of伊印henenadloribboIlsanddrawnthedbpe璐沁nrelat沁nsfigur皤，theJDOSfigur笛andtherealconductanceIk仃ligur酷，andstlldiedtheoptoelectronicproperti酷forthe肛印henenanoribbo璐Cll印tertw0，three