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English Abstract


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¸ù¾ÝĦ¶û¶¨ÂÉ, ¼¯³Éµç·ÖÐÿƽ·½Ó¢´çµÄÔª¼þÊýÁ¿Ô¤¼ÆÃ¿Á½Äê·­Ò»±¶. µ±Î¢µç×ÓÆ÷¼þµÄ¹Ø¼ü³ß´çËõСµ½14 nmÒÔÏÂ, ¼ÌÐø·¢Õ¹¸ßÃܶÈС³ß´çµÄ΢µç×Ó¼¯³ÉµçÂ·ÃæÁÙ×ÅÖÆÔì¼¼ÊõºÍÆ÷¼þÐÔÄܵÄË«ÖØÏÞÖÆ. ÕâЩÏÞÖÆ¿ÉÒÔͨ¹ýÑÐÖÆ¾§Ìå¹ÜͨµÀвÄÁÏÀ´¿Ë·þ[1,2]. Óɼ«Ð¡µç×ÓͨµÀ¹¹½¨µÄµç×Ó¾§Ìå¹ÜÆ÷¼þ³ß´ç³É±ÈÀý¼õС, ÔËÐÐËٶȳ¬¿ì¡¢ÄÜЧ¸ß, ²¢ÇÒÊÜÆäËûÐÔÄܺÍÍâ½ç»·¾³µÄÓ°Ïì½ÏС[3,4].
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ͼ 1 SGDY (ÉÏͼ)ºÍNGDY (ÏÂͼ)ÄÉÃ×´øÁ½¶ËÁ¬½ÓʯīϩÄÉÃ×´ø°ëÎÞÏ޵缫(Ô´¼«ºÍ©¼«·ÛÉ«ÇøÓò)¹¹½¨µÄË«¼«Æ÷¼þÄ£ÐÍ, ʯīȲ¼â¶ËºÍʯīϩ±ßԵ̼ԭ×ÓÓÉÇâÔ­×Ó¶Û»¯, ºÚÉ«¿ò¼Ü±íʾÖÜÆÚÐÔµ¥°û
Figure1. Schematic bipolar device models constructed with the SGDY (above panel) or NGDY (below panel) as center scattering region and the graphene nanoribbons as semi-infinite electrodes (source and drain in pink areas). The apex and edge carbon atoms are passivated by hydrogen atoms, and black frames indicate periodic unit cells.

µç×Ó̬ÃèÊö¼°Çó½â·½·¨¼ÆËã·½°¸²ÎÊýÉèÖÃ
½»»»Ïà¹Ø·ºº¯GGAPBEsol[24]
µç×ÓÓëÔ­×ÓʵÏ໥×÷ÓÃ(core treatment)È«µç×ÓÏà¶ÔÂÛ(all electron relativistic)
ÊýÖµ»ù×éË«ÊýÖµ¼«»¯(DNP)
¹ìµÀ½ØÖÁ(orbital cutoff)Global5.0 ?
SCFÈÝÈ̶È1 ¡Á 10¨C6 Ha/Ô­×Ó (1 Ha = 27.2 eV)
¶à¼«Õ¹¿ª°Ë¼«
ÃܶȻìºÏµçºÉºÍ×ÔÐý»ìºÏ·ù¶È·Ö±ðΪ0.2ºÍ0.5
¹ìµÀÕ¼¾ÝÈÈÍÏβ(smearing)[25]0.001 Ha
²¼ÀïÔ¨Çø»ý·ÖkµãÈ¡Ñù(µç×ӽṹ)Monkhorst-Pack¸ñµã[26]1 ¡Á 1 ¡Á 25
¼ÆËã·¶µÂÍß¶ú˹Ï໥×÷ÓÃDFT½»»»-Ïà¹Ø·ºº¯É«É¢Ð£Õý[27]
²¼ÀïÔ¨Çø»ý·ÖkµãÈ¡Ñù(µç×ÓÊäÔË)¾ùÔȼä¸ô¸ñµã¼ä¸ô0.02/?
²´ËÉÇó½â·¨ºÍ²´Ëɱ߽çÌõ¼þ(µç×ÓÊäÔË)Æ÷¼þ²àÃæ»º³å³¤¶È7.5 ?
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µç¼«½çÃæ±ß½çÌõ¼þDirichlet
·Çµç¼«½çÃæ±ß½çÌõ¼þNeumann
µç¼«±ß½çÇø»º³å³¤¶È3 ?


±í1ʹÓÃDmol3³ÌÐòµÄ¼ÆËã·½·¨ºÍ²ÎÊýÉèÖÃ
Table1.Scheme and parameter setting up in calculationswith Dmol3 program.

ʹÓÃDmol3³ÌÐòÖÐ×îпª·¢µÄÁ¿×Ó³å»÷µçµ¼´ÓÍ·¼ÆË㹦ÄÜ, ½áºÏDFTºÍNEGFµÄ·½·¨¼ÆËãµç×ÓÊäÔËÌØÐÔ. ½«ÏµÍ³·ÖΪ×óµç¼«(L)¡¢ÖÐÐÄÉ¢ÉäÇø(C)ºÍÓҵ缫(R)Èý¸ö²¿·Ö, ͨ¹ýµü´úÇó½âNEGFºÍDFT·½³ÌµÃµ½L-C-R±ê׼˫¼«Æ÷¼þµÄƽºâµçµ¼. ¼ÙÉèÁ½¶Ëµç¼«Ö»ÓëÉ¢ÉäÇøÓòñîºÏ¶ø²»Ï໥ñîºÏ, Ôò¸ñÁÖº¯ÊýµÄ·½³Ì±íʾΪ
$\left[ {\begin{array}{*{20}{c}} {E{S_{{\rm{LL}}}} - {{{H}}_{{\rm{LL}}}}}&{E{{{S}}_{{\rm{LC}}}} - {{{H}}_{{\rm{LC}}}}}&{\rm{0}} \\ {E{S_{{\rm{CL}}}} - {{{H}}_{{\rm{CL}}}}}&{E{{{S}}_{{\rm{CC}}}} - {{{H}}_{{\rm{CC}}}}}&{E{{{S}}_{{\rm{CR}}}} - {{{H}}_{{\rm{CR}}}}} \\ {\rm{0}}&{E{{{S}}_{{\rm{RC}}}} - {{{H}}_{{\rm{RC}}}}}&{E{{{S}}_{{\rm{RR}}}} - {{{H}}_{{\rm{RR}}}}} \end{array}} \right] \times \left[ {\begin{array}{*{20}{c}} {{g_{{\rm{LL}}}}}&{{g_{{\rm{LC}}}}}&{{g_{{\rm{LR}}}}} \\ {{g_{{\rm{CL}}}}}&{{g_{{\rm{CC}}}}}&{{g_{{\rm{CR}}}}} \\ {{g_{{\rm{RL}}}}}&{{g_{{\rm{RC}}}}}&{{g_{{\rm{RR}}}}} \end{array}} \right] = \left( {\begin{array}{*{20}{c}} 1&0&0 \\ 0&1&0 \\ 0&0&1 \end{array}} \right),$

ÆäÖÐHºÍS·Ö±ðÊǹþÃܶپØÕóºÍÖØµþ¾ØÕó, ÓÃÀ´¼ÆËãÖÐÐÄÉ¢ÉäÇøµÄ¸ñÁÖº¯ÊýgCC, ²¢Í¨¹ý¶¨ÒåñîºÏ¾ØÕóÀ´¼ÆËãϵͳ³å»÷¹ý³ÌÖеç×Ó͸ÉäÂÊºÍÆ½ºâµçµ¼:
$G{\rm{(}}E{\rm{)}} = \frac{{2{e^2}}}{h}T{\rm{(}}{\varTheta _{\rm{l}}}{g^{\rm{r}}}{\varTheta _{\rm{r}}}{g^{\rm{a}}}{\rm{),}}$
ÆäÖÐgrºÍga·Ö±ð±íʾÖÐÐÄÉ¢ÉäÇøµÄÑӳٺͳ¬Ç°¸ñÁÖº¯Êý, ¦¨lºÍ¦¨r·Ö±ðΪ×óÓÒÁ½¶Ëµç¼«µÄñîºÏº¯Êý, T´ú±íµç×Ó͸ÉäÂÊ, G(E)±íʾƽºâÁ¿×ӵ絼, eºÍh·Ö±ðÊǵç×ÓµçÁ¿ºÍÆÕÀʿ˳£Êý. ½áºÏDFTºÍNEGFµÄ·½·¨ÒÔ×ÔÇ¢µÄÐÎʽÃèÊöÕû¸öË«¶Ë¿ª·Åϵͳ(°üÀ¨Ë«µç¼«°ëÎÞÏÞÇøÓòºÍÆ÷¼þÉ¢ÉäÖÐÐÄ)µÄµç×Ó½»»»-Ïà¹Ø×÷ÓÃ, ͨ¹ý×ÔÄÜÏî¼ÆËãÎÞÏ޵缫µÄ×÷ÓÃ, ²¢ÓøñÁÖº¯ÊýÃèÊöÓÐЧÊöÉ¢ÉäÇøÓòµÄ·Çƽºâµç×Ó·Ö²¼. Èç¹ûûÓÐÍⲿƫÖÃ, µç×ÓµÄÊäÔËÌØÐÔ¿ÉÓɹ«Ê½(1)ºÍ(2)ÃèÊö; µ±Íⲿƫѹ×÷ÓÃÔڵ缫ÉÏʱ, Ö»»áÒýÆðÌØÕ÷ÖµµÄ¸ÕÐÔÆ«ÒÆ. һάϵͳÖеç×ӵ絼¿ÉÒÔ¿´×÷ÊÇÒ»¸ö´«µÝÎÊÌâ, µçÁ÷ÓɸñÁÖº¯Êýͨ¹ýLandauer Buttiker¹«Ê½µÃµ½[28]:
$I{\rm{(}}V{\rm{)}} = \frac{e}{h}\int_{ - \infty }^{ + \infty } {{\rm{\{ }}T{\rm{(}}E,V{\rm{)[}}{f_{\rm{L}}}{\rm{(}}E,V{\rm{)}} - {f_{\rm{R}}}{\rm{(}}E,V{\rm{)]\} }}} {\rm{d}}E,$
ÆäÖÐfL(E,V)ºÍfR(E,V)·Ö±ð±íʾƫѹV×÷ÓÃÏÂ×óÓÒÁ½¶Ëµç¼«µÄ·ÑÃ×-µÒÀ­¿ËÄÜÁ¿·Ö²¼º¯Êý.
Ê×ÏȶÔÁ½ÖÖµäÐ͵ÄʯīϩÄÉÃ×´ø¡ªÐÇÐÎʯīȲ(SGDY)ºÍÍø×´Ê¯Ä«È²(NGDY)ÄÉÃ×´ø½øÐеÚÒ»Ô­ÀíÄÜÁ¿·ºº¯¼¸ºÎÓÅ»¯ºÍµç×ӽṹ¼ÆËã, ÔÙ¹¹½¨Ë«¼«Æ÷¼þ(Èçͼ1Ëùʾ)ÓÃÒÔ¼ÆËãÁ¿×ÓÊäÔËÌØÐÔ. ÓÉÓÚʯīȲ/ʯīϩ½çÃæ´æÔÚ¾§¸ñʧÅä, Òò´Ë¼¸ºÎÓÅ»¯ÒÔºóÔÚʯīȲ/ʯīϩÒìÖʽáÄÉÃ×´ø½çÃæ´¦µÄʯīȲ̼ԭ×Ó»·ÏòÄÉÃ×´øÖÐÐÄÆ«×ª±äÐÎ, ÒìÖʽá½çÃæ´¦µÄʯīȲºÍʯīϩÄÉÃ×´ø·Ö±ð²úÉúѹӦ±äºÍÀ­ÉìÓ¦±ä. ÓÉÓÚ¸ÃÓ¦±äÖ÷ÒªÊÇ̼ԭ×ÓÖ®¼äµÄ³É¼ü½Ç¶È·¢ÉúÇá΢µÄ±ä»¯, ËùÒÔÓ¦±ä²úÉúµÄÓ¦Á¦ºÜС, ÒìÖʽṹ½ÏΪÎȶ¨. ÔÚ¹¹½¨µÄË«¼«Æ÷¼þÖÐ, SGDYºÍNGDYÄÉÃ×´ø¹µµÀµÄ³ß´ç(³¤ ¡Á ¿í)·Ö±ðΪ(28.6 ? ¡Á 8.9 ?)ºÍ(34.2 ? ¡Á 16.1 ?). ²ÉÓûùÓÚÈ«µç×ÓÊýÖµ¹ìµÀ»ù×é·½·¨µÄDmol3³ÌÐò½øÐеç×ӽṹ¼ÆËã, µÃµ½SGDYºÍNGDYÄÉÃ×´øµÄµç×ÓÄÜ´ø½á¹¹Èçͼ2Ëùʾ(ÒÔ·ÑÃ×Äܼ¶ÉèΪÄÜÁ¿²Î¿¼µã). Á½ÖÖ½á¹û¾ùδ³ÊÏÖµç×ÓÄÜÁ¿µÄ×ÔÐý·ÖÁÑ, SGDYÄÉÃ×´øµÄÄÜ´ø´øÏ¶Îª1.63 eV, ÔÚ²¼ÀïÔ¨ÇøGµã³ÊÏÖ°ëµ¼ÌåÖ±½Ó´øÏ¶; ¶øNGDYÄÉÃ×´ø²»´æÔÚÄÜ´ø´øÏ¶, ³ÊÏÖ½ðÊôÄÜ´øÌØÕ÷.
ͼ 2 SGDY (a)ºÍNGDY (b)ÄÉÃ×´øµÄµç×ÓÄÜ´ø½á¹¹, ÒÔ·ÑÃ×Äܼ¶(ˮƽÐéÏß)ΪÄÜÁ¿²Î¿¼Áãµã
Figure2. Electronic energy band structure of SGDY (a) and NGDY (b) nanoribbons with Fermi energy level as reference energy zero (horizontal dashed line).

ΪÁËÑо¿Ëù¹¹½¨¾§Ìå¹ÜµÄµçÊäÔËÌØÐÔ, ²ÉÓÃ˫̽Õë·½·¨¹¹½¨Ë«¼«Æ÷¼þ, ½«Ê¯Ä«È²ÄÉÃ×´ø×÷ΪÖÐÐÄÉ¢ÉäÇøÓòÓëÁ½¶ËʯīϩÄÉÃ×´ø°ëÎÞÏ޵缫ÏàÁ¬, ÓÃÓÚÊ©¼ÓÆ«Öõçѹ, ²¢ÔÚÄÉÃ×´øÆ½Ãæ´¹Ö±·½Ïò¹¹½¨ÓÃÓÚÊ©¼ÓÕ¤¼«UgµÄÕ¤µç¼«(Èçͼ3Ëùʾ), ¼ÆË㲻ͬUgϵĵç×Ó͸ÉäÆ×ºÍµçÁ÷-Æ«Öõçѹ(I-Ub)ÇúÏß. ͼ4(a)ΪSGDYºÍNGDYÄÉÃ×´øÔÚ0¡ª2 VÆ«Öõçѹ·¶Î§ÄÚµÄI-VÌØÐÔÇúÏß(Õ¤¼«µçѹΪÁã). Ê©¼ÓUbÔÚ1.5 V(ãÐÖµµçѹ)ÒÔÏÂ, µçÁ÷¼¸ºõΪÁã; µ±Ub³¬¹ýãÐÖµµçѹÒÔºó, Ô´¼«·ÑÃ×Äܼ¶Éý¸ßÖÁÓëʯīȲÄÉÃ×´ø¹µµÀÇøµÄÁ¿×Ó»¯Äܼ¶Ïàͬ, Ðγɵç×Ó¹²ÕñËí´©, µçÁ÷ÒÔÖ¸ÊýÐÎʽѸËÙÔö´ó. ËäÈ»SGDYÄÉÃ×´øµÄµç×ÓÄÜ´ø´æÔÚ´øÏ¶, µ«Æä¿í¶È½ÏС, µç×ÓÔÚÖÐÐÄÇøÊäÔ˹ý³ÌÈÔÈ»»á·¢Éú½ÏСµÄÉ¢Éä, Òò´ËSGDYÄÉÃ×´øµÄµçÁ÷ÂÔ´óÓÚNGDYÄÉÃ×´øµÄµçÁ÷. ÔÚÕ¤¼«µçѹUg = 4 Vʱ, SGDYºÍNGDYÄÉÃ×´ø¾§Ìå¹ÜµÄ©¼«µçÁ÷ËæÆ«ÖõçѹµÄ±ä»¯Èçͼ4(b)Ëùʾ. ÓÉÓÚÁ½¸öʯīϩµç¼«Ö®¼äÔØÁ÷×ӵĹ²ÕñËí´©, ÔÚUb = 0.7 V´¦³öÏÖÒ»¸öÇ¿·å, Ëæºó³öÏÖÒ»¸ö¸ºÎ¢·Öµçµ¼Çø(NDC). µ±Ê©¼ÓµÄÆ«Öõçѹ×ãÒÔʹÖÐÐÄÉ¢ÉäÇøÊ¯Ä«È²Á¿×ÓÚåÄÚδռ¾ÝÁ¿×Ó̬µÄÄÜÁ¿½µµÍÖÁʯīϩԴ¼«µ¼´øÄÜÁ¿·¶Î§Ê±, Á¿×ÓÚå´¦ÓÚгÕñ̬, ËùÒÔµç×Ó¿ÉÒÔ´©¹ýʯīȲ¹µµÀÊäÔËÖÁʯīϩNGDYÄÉÃ×¾§Ìå¹ÜµÄ©¼«, ·ñÔòµçÁ÷¼¸ºõΪÁã, ¼´ÄÉÃ×¾§Ìå¹Ü¾ÍʧȥÁ˹²ÕñЧӦ.
ͼ 3 ÔÚSGDY/ʯīϩÒìÖʽáÄÉÃ×´øË«¼«Æ÷¼þµÄ´¹Ö±·½ÏòÊ©¼ÓÕ¤¼«µçѹ¹¹½¨µÄ¾§Ìå¹Üµç×ÓÊäÔ˼ÆËãÄ£ÐÍ, ·ÛÉ«ÇøÓò±íʾµç¼«, »ÒÉ«¡¢°×É«¡¢ºìÉ«¡¢»ÆÉ«ºÍ·ÛɫСÇò·Ö±ð´ú±í̼¡¢Çâ¡¢Ñõ¡¢¹èºÍÂÁÔ­×Ó
Figure3. Electron transport calculation in transistor model of bipolar devices with the SGDY/graphene nanoribbons heterostructure as the center scattering region and semi-infinite electrodes (source and drain) respectively under the gate voltage in vertical direction. The pink areas indicate electrodes, and the gray, white, red, yellow and pink spheres represent carbon, hydrogen, oxygen, silicon and aluminium atoms respectively.

ͼ 4 SGDYºÍNGDYÄÉÃ×´ø¾§Ìå¹ÜµÄ©¼«µçÁ÷ËæÆ«ÖõçѹµÄ±ä»¯¡¡(a) Ug = 0 V; (b) Ug = 4 V
Figure4. Drain current of SGDY and NGDY nanoribbon transistors varying with bias voltage under (a) Ug = 0 V and (b) Ug = 4 V

µ±Æ«ÖúÍÕ¤¼«µçѹΪÁãʱ, Á½¸öʯīϩµç¼«µÄ»¯Ñ§ÊÆÎ»ÓÚµÒÀ­¿Ëµã, ¾ßÓÐÏàͬµÄÄÜÁ¿. ͨ¹ýÔö¼ÓÆ«Öõçѹ, µç×ӺͿÕѨ·Ö±ðÔÚ¸º¼«ºÍÕý¼«ÖлýÀÛ, ´Ó¶ø²úÉúµç³¡, ʹµÒÀ­¿Ëµã´íλ. Èç¹ûUg ¡Ù 0, ¿ÉÒÔµ÷½ÚUbʹÁ½¸öµç¼«µÄµÒÀ­¿Ëµã¶ÔÆë. Òò´ËÔÚÁ½¸öµç¼«»¯Ñ§ÊÆÖ®¼äÄÜÁ¿Çø¼äµÄÈ«²¿ÔØÁ÷×ÓÔÚI-VÇúÏßÉÏÐγÉÒ»¸öÇ¿·å. Õ¤¼«µçѹUg = 4 Vʱ, SGDY¾§Ìå¹ÜÔÚÆ«Öõçѹ0¡ª1.0 V·¶Î§Äڵĵç×Ó͸ÉäÆ×Èçͼ5Ëùʾ. ½«Æ«Öõçѹ´Ó0Ôö¼Óµ½0.6 V, Ô´¼«·ÑÃ×Äܼ¶ÓëʯīȲÄÉÃ×´ø¹µµÀµÄÁ¿×Ó»¯Äܼ¶Ïàͬ, Ðγɵç×Ó¹²ÕñËí´©, ÔÚÆ«Öô°¿Ú(¨CeV/2, +eV/2)³öÏÖÃ÷ÏԵĵç×ÓÊäÔË·å(Èçͼ5ÖÐÁ½Ìõ´¹Ö±ÐéÏßËùÊ¾ÇøÓò), Òò´ËÓÉÆ«Öô°¿ÚÖÐ͸É亯Êý»ý·ÖÈ·¶¨µÄµçÁ÷Ò²ËæÖ®Ôö´ó. ½«Æ«Öõçѹ´Ó0.6 VÔö¼Óµ½0.65 Vʱ, Ô´¼«·ÑÃ×Äܼ¶ÓëʯīȲÄÉÃ×´øµÄÁ¿×Ó»¯Äܼ¶·¢ÉúÆ«Àë, ¹²ÕñËí´©×ª±äΪÆÕͨµÄµç×ÓËí´©, µ¼ÖÂÆ«Öô°¿ÚÄڵĵç×Ó͸ÉäÆ×·åÏûʧ, Òò´ËµçÁ÷ͻȻ¼õС, ±íÏÖΪÃ÷ÏÔµÄNDC, ʹSGDY¾§Ìå¹ÜµÄPVR´ïµ½ÁË4.5. PVRÊÇÖ¸¹²ÕñËí´©¹ý³ÌÖеçÁ÷×î´óÖµÓë×îСֵµÄ±ÈÖµ, PVRÔ½¸ßµç×ÓÊÙÃüÒ²Ô½³¤, ¶øÇÒ¿ÉÒÔͨ¹ýµç×ÓÊÙÃüÉ趨Êʵ±µÄ¹¤×÷ƵÂÊ. Ïà±ÈÖ®ÏÂ, NGDY¾§Ìå¹ÜÔÚÆ«Öõçѹ³¬¹ý0.7 VÒÔºó³ÊÏÖ³ö¸üÏÔÖøµÄNDC, PVR´ïµ½ÁË6.0. ͨ¹ýÓë×î½üÎÄÏ×±¨µÀµÄ²»Í¬²ÄÁÏÄÉÃ×´ø¾§Ìå¹ÜPVR½øÐбȽÏ(Èç±í2ËùÁÐ), ±íÃ÷SGDYºÍNGDYÄÉÃ×´øµÄPVRÖµÓÅÓÚµª»¯Åð(BN)ºÍµª»¯ïØ(GaN), Òò´Ë¿É×÷Ϊ¹²ÕñËí´©¾§Ìå¹ÜµÄÄÉÃ×¹µµÀ.
ͼ 5 SGDYÄÉÃ×´ø¾§Ìå¹ÜÔÚÆ«Öõçѹ0¡ª1.0 V·¶Î§Äڵĵç×Ó͸ÉäÆ×(Õ¤¼«µçѹUg = 4 V)
Figure5. Electron transmission spectra of SGDY nanoribbon transistors in the bias voltage range of 0?1.0 V under gate voltage Ug = 4 V.

ÄÉÃ×´øÉ¢ÉäÇøµç¼«Ñо¿·½·¨Õ¤¼«µçѹ /VPVRÊý¾ÝÀ´Ô´
SGDY, NGDYʯīϩµÚÒ»Ô­Àí¼ÆËã54.5, 6.0±¾ÎÄ
BNʯīϩÀíÂÛ¼ÆËãºÍʵÑé0, 201¡ª4Ref. [16]
BNʯīϩÀíÂÛ¼ÆËãºÍʵÑé¨C40, 0, 40¡ªRef. [17]
GaN-Al-GaNGaNÀíÂÛ¼ÆËã(Matlab)¨C1, ¨C2, ¨C32.66Ref. [19]


±í2²»Í¬ÄÉÃ×´ø¾§Ìå¹ÜÔÚ²»Í¬Õ¤¼«µçѹϵÄPVR
Table2.PVR for nanoribbon transistors fabricated with different materials under different gate voltage.

ÀàËÆµÄÁ×»¯Åð(BP)/̼»¯¹è(SiC)ÄÉÃ×´øË«ÒìÖʽṲÕñËí´©¾§Ìå¹ÜµÄ¹µµÀ(BPÄÉÃ×´ø)³¤¶ÈÖ±½ÓÓ°Ïì¹²ÕñËí´©Ìõ¼þ¼°NDCÌØÐÔ, ¹µµÀ³¤¶È¼õСʹ¹²ÕñËí´©µçÁ÷·åÖµÏÔÖøÔö¸ß, µ«NDCµÄPVR»ù±¾²»·¢Éú±ä»¯[29]. ͼ2¸ø³öµÄÄÜ´ø½á¹¹±íÃ÷SGDYÄÉÃ×´øµÄµ¼´øµ×µç×ÓÓÐЧÖÊÁ¿Ã÷ÏÔСÓÚNGDY·ÑÃ×Äܼ¶¸½½üµÄµç×ÓÓÐЧÖÊÁ¿. ÓÉ´Ë¿ÉÒÔÅжÏ: SGDYÄÉÃ×´ø¹²ÕñËí´©¾§Ìå¹ÜµÄµç×ÓÉ¢ÉäÖ÷Òª·¢ÉúÔÚÔ´¼«»ò©¼«(ʯīϩÄÉÃ×´ø)Óë¹µµÀ(ÖÐÐÄÉ¢ÉäÇøµÄʯīȲÄÉÃ×´ø)µÄÒìÖʽá½çÃæ¸½½ü(Ëí´©ÊÆÀÝÇø), ËùÒÔ¹µµÀ³¤¶È¶ÔÆ÷¼þ·¢Éú¹²ÕñËí´©Ê±µÄI-UbÇúÏßÌØÕ÷Ó°ÏìºÜС; ¶øµç×ÓÔÚNGDYÄÉÃ×´ø¹²ÕñËí´©¾§Ìå¹ÜµÄ¹µµÀÖÐÒ²»á·¢ÉúÃ÷ÏÔµÄÉ¢Éä, ËùÒÔ¼õСNGDYÄÉÃ×´ø³¤¶È½«µ¼Ö¹²ÕñËí´©µçÁ÷Ã÷ÏÔÔö´ó. ´ËÍâ, ÓÉÓÚË«ÒìÖʽáÆ÷¼þÖмäʯīȲÄÉÃ×´øµÄÁ¿×Ó»¯Äܼ¶ËæÆä³¤¶ÈµÄÔö¼Ó¶øÏ½µ, ËùÒÔ²úÉú¹²ÕñËí´©ËùÐèÒªµÄÕ¤¼«µçѹ½«Ëæ¹²ÕñËí´©¾§Ìå¹Ü¹µµÀ³¤¶ÈµÄÔö¼Ó¶ø½µµÍ.
¹²ÕñËí´©¾§Ìå¹ÜÒòÆä½µµÍµç·¸´ÔÓÐÔµÄÄÜÁ¦¶øÊܵ½¹ã·º¹Ø×¢, ÔÚ³¬¸ßËٺͳ¬¸ßƵӦÓÃÁìÓòÊÇÒ»¸ö·Ç³£ÓÐǰ;µÄºòÑ¡Æ÷¼þ. ±¾ÎÄͨ¹ýÀíÂÛ¼ÆËãÖ¤Ã÷: SGDYºÍNGDYÄÉÃ×´ø¾§Ìå¹ÜÖпÉÒÔ·¢Éú¹²ÕñËí´©Á¿×ÓЧӦ; ¹²ÕñÌõ¼þ¾ÖÏÞÔÚÏÁÕ­Æ«Öõçѹ·¶Î§ÄÚ, ʹI-UbÌØÐÔ³öÏÖгÕñ·å, ´Ó¶ø²úÉúÇ¿¸ºÎ¢·Öµçµ¼. SGDYºÍNGDYÄÉÃ×¾§Ìå¹Ü¾ßÓиºÎ¢·Öµçµ¼ºÍ¸ß·å¹ÈµçÁ÷±È(PVRΪ4.5ºÍ6.0), ¿ÉÓÐЧµÄÓ¦ÓÃÓÚÁ¿×Ó´«ÊäÄÉÃ×µç×ÓÆ÷¼þ.
Ïà¹Ø»°Ìâ/ÄÉÃ× µç×Ó µçѹ ¼ÆË㠽ṹ

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