| ²é¿´: 1062 | »Ø¸´: 1 | ||
| ±¾Ìû²úÉú 1 ¸ö ·ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴 | ||
ÍõÁé½Ü½ð³æ (³õÈëÎÄ̳)
|
[ÇóÖú]
Çó·Òë¹þ£¡£¡£¡£¨²ÄÁÏÀ࣬¶à±ÚÄÉÃ×̼¹Ü£©
|
|
| Preparation of GNRs. We dispersed 1 mg of MWCNTsin 10 ml of 1% Tween 20 aqueous solution by sonication for 5 min and then centrifugation at 16,400g for 10 min to remove aggregates. The MWCNT suspension was deposited onto a Si substrate pretreated with 3-aminopropyltriethoxysilane (APTES, 12 ml in 20 ml ofH2O), rinsed with water and then blow-dried. The sample was then calcined at 350 uC for 10 min to remove the Tween 20. A PMMA solution (relative molecular mass, Mw5495,000; 5% in anisole) was spin-coated on MWCNTs on the substrate at 3,000 rounds per minute for 1 min and then baked at 170 uC for 2 h on a hot plate. ThePMMA¨CMWCNT film was peeled off in 1MKOHsolution at 80 uC (ref. 21). Then the film was rinsed with water and printed onto a Si substrate. To make the film well-adhered to the Si substrate, we heated the sample at 80 uC for 10 min in an oven. Ten-watt Ar plasma was used to etch the PMMA¨CMWCNT film at the base pressure of 40 mTorr. After etching, we lifted thePMMAfilm using water and then adhered it to an APTES-treated, 500-nm SiO2/Si substrate with a prefabricated Pt/W marker array. After the PMMA had been removed using acetone vapour21, the obtained sample was calcined at 300 uC for 10 min to remove the residue of PMMA |
» ²ÂÄãϲ»¶
ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼±
ÒѾÓÐ5È˻ظ´
ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼±
ÒѾÓÐ6È˻ظ´
ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼±
ÒѾÓÐ7È˻ظ´
ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼±
ÒѾÓÐ7È˻ظ´
ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼±
ÒѾÓÐ9È˻ظ´
ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼±
ÒѾÓÐ4È˻ظ´
ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼±
ÒѾÓÐ6È˻ظ´
ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼±
ÒѾÓÐ5È˻ظ´
ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼±
ÒѾÓÐ8È˻ظ´
ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼±
ÒѾÓÐ10È˻ظ´
sltmac
ÈÙÓþ°æÖ÷ (ÖªÃû×÷¼Ò)
- ·ÒëEPI: 161
- Ó¦Öú: 10 (Ó×¶ùÔ°)
- ¹ó±ö: 4.557
- ½ð±Ò: 29307.8
- É¢½ð: 2687
- ºì»¨: 47
- ɳ·¢: 4
- Ìû×Ó: 5424
- ÔÚÏß: 633.4Сʱ
- ³æºÅ: 996442
- ×¢²á: 2010-04-14
- ÐÔ±ð: GG
- רҵ: ÎÞ»úÄÉÃ×»¯Ñ§
- ¹ÜϽ: ÂÛÎÄ·Òë
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï ¡ï
ÍõÁé½Ü(½ð±Ò+100, ·ÒëEPI+1): лл£¬ÎÒ¿´µ½Õ⼸¶Î¶¼ÊÇÄã·ÒëµÄ¶î£¬¸Ðл°¡ 2011-06-01 11:57:09
Mally89(½ð±Ò+2): ¸ÐлӦÖú£¡~ 2011-06-01 18:41:54
ÍõÁé½Ü(½ð±Ò+100, ·ÒëEPI+1): лл£¬ÎÒ¿´µ½Õ⼸¶Î¶¼ÊÇÄã·ÒëµÄ¶î£¬¸Ðл°¡ 2011-06-01 11:57:09
Mally89(½ð±Ò+2): ¸ÐлӦÖú£¡~ 2011-06-01 18:41:54
| ÖÆ±¸GNR¹ý³ÌÈçÏ£¬·ÖÉ¢1mg MWCNTs ÓÚ10~20mLË®ÖУ¬³¬Éù5min£¬ÔÙÒÔ16400ת/·ÖµÄËÙÂÊÀëÐÄ10minÒÔÒÆ³ý¾Û¼¯Îï¡£µÃµ½µÄMWCNT ·ÖÉ¢Òº³Á»ýµ½SiÓÃAPTES,£¨12 ml ÈÜÓÚ 20 ml H2O£©Ô¤´¦Àí¹ýµÄSi»ù°åÉÏ£¬ÓÃË®³åÏ´ºó´µ¸É£¬ÑùÆ·ÔÚ350¡æÏÂÉÕ½á10minÒÔÈ¥³ýÔÓÖÊ¡£A PMMAÈÜÒº£¨·Ö×ÓÁ¿£¬Mw=5495000£»±½¼×ÃÑÖеÄŨ¶ÈΪ5%£©ÒÔ3000ת/·ÖÔÚµÄËÙÂÊÐýÍ¿ÔÚ¸½ÓÐMWCNTµÄ»ù°åÉÏ£¬ÐýÍ¿1min£¬È»ºóÔÚÒ»¿é¼ÓÈȰåÉÏ170¡æºæ¸É2h¡£PMMA¨CMWCNTĤͨ¹ý1M ÇâÑõ»¯¼ØÈÜÒºÔÚ80¡æ°þÀ루²Î¿¼ÎÄÏ×21£©£¬È»ºóĤͨ¹ýË®³åÏ´ÔÙÓ¡¼£µ½Si»ù°åÉÏ¡£ÎªÁËʹĤºÜºÃµØ¸½×ÅÔÚSi»ù°åÉÏ£¬ÎÒÃǰÑÑùÆ·ÔÚÂí¸¥Â¯ÖÐ80¡æ¼ÓÈÈ10min£¬10ÍßµÄArµÈÀë×ÓÔÚ40ºÁÍÐѹÁ¦ÏÂÓÃÀ´Ê´¿ÌPMMA¨CMWCNTĤ£¬¿ÌÊ´Íêºó£¬ÓÃˮϴµÓPMMAĤȻºó½«ÆäÕ³¸½ÔÚ¾APTES´¦Àí¹ýµÄ500nm µÄSiO2/Si»ù°å¡£µ±PMMAÓñûÍªÒÆ³ýºó£¬µÃµ½µÄÑùÆ·ÔÚ300¡æÏÂÉÕ½á10minÒÔÒÆ³ýÊ£ÓàµÄPMMA¡£ |

2Â¥2011-06-01 10:25:48













»Ø¸´´ËÂ¥