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lz3333
ÖÁ×ðľ³æ (ÕýʽдÊÖ)
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2Â¥2010-01-25 15:39:16
panjinping
½ð³æ (ÕýʽдÊÖ)
- Ó¦Öú: 4 (Ó×¶ùÔ°)
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3Â¥2010-01-25 15:42:51
panjinping
½ð³æ (ÕýʽдÊÖ)
- Ó¦Öú: 4 (Ó×¶ùÔ°)
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- רҵ: °ëµ¼Ìå²ÄÁÏ

4Â¥2010-01-26 11:25:38
panjinping
½ð³æ (ÕýʽдÊÖ)
- Ó¦Öú: 4 (Ó×¶ùÔ°)
- ½ð±Ò: 1169.1
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- ×¢²á: 2009-03-26
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- רҵ: °ëµ¼Ìå²ÄÁÏ

5Â¥2010-01-29 14:05:24
clearsky7228
½ð³æ (ÕýʽдÊÖ)
·ÒëÁªÃË
- ·ÒëEPI: 13
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- רҵ: ÎÞ»ú·Ç½ðÊôÀà¹âµçÐÅÏ¢Ó빦
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panjinping(½ð±Ò+20):¹ýÁ˸öÄê»ØÀ´Ò»¿´£¬¾ÓÈ»·ÒëºÃÁË¡£ËäÈ»ÎÒ×Ô¼ºÒѾ·ÒëºÃÁË¡£µ«ÊÇÕâ¸ö½ð±Ò»¹¸øÄã¡£¼øÓÚÓï¾äƽƽ£¬ÔùËÍ60½ð 2010-03-02 11:02
zap65535(½ð±Ò+20): 2010-03-03 10:21
panjinping(½ð±Ò+20):¹ýÁ˸öÄê»ØÀ´Ò»¿´£¬¾ÓÈ»·ÒëºÃÁË¡£ËäÈ»ÎÒ×Ô¼ºÒѾ·ÒëºÃÁË¡£µ«ÊÇÕâ¸ö½ð±Ò»¹¸øÄã¡£¼øÓÚÓï¾äƽƽ£¬ÔùËÍ60½ð 2010-03-02 11:02
zap65535(½ð±Ò+20): 2010-03-03 10:21
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ͼ5ÊÇ´Óͼ4µÄÑ»··ü°²ÇúÏߵõ½µÄ¸÷ÑùÆ·µÄµçÊÆ´°¿ÚºÍÎöÑõµçλ´óСÓëÍË»ðζȵĹØÏµ£®´ÓͼÖпÉÒÔ¿´³ö£¬ÔÚËáÐÔ½éÖÊÖÐBDNDµç¼«µÄµçÊÆ´°¿ÚºÍÎöÑõµçÎ»ËæÍË»ðζȵı仯¹æÂÉÏàͬ£®´ÓδÍË»ðµ½600¡æÍ˻𣬽ð¸ÕʯĤµç¼«µÄµçÊÆ´°¿ÚÔö¿í£¬ÎöÑõµçλÔö´ó£»½áºÏRamanÆ×µÄ·ÖÎö½á¹û£¬Èçͼ4£¬ID/IGÖµÔö´ó£¬G·åÓÒÒÆ¡£µ±±¡Ä¤ÔÚ800¡æÍË»ðºó£¬½ð¸ÕʯĤµç¼«µÄµçÊÆ´°¿ÚºÍÎöÑõµçλÔöÖÁ×î´ó£¬·Ö±ðΪ3.28VºÍ2.32V£»´ËʱID/IGÖµ×îС£¬G·å×óÒÆ¡£µ±ÍË»ðζÈÉý¸ßµ½1000¡æÊ±£¬µçÊÆ´°¿Ú±äΪ×îÕ£¬ÎöÑõµçλ±äΪ×îµÍ£¬·Ö±ðΪ2.42VºÍ1.74V£»¸Ã±¡Ä¤µÄRamanÆ×ͼÖÐD·å½ÏÇ¿£¬·å½Ï¼âÈñ£¬ID/IGÖµ´Ó×îС±äΪ×î´ó£¬G·åÒÆÖÁ×îÓÒ¡£ From the circular voltage curve in fig.4 , Fig.5 is the values of the potential windows and the divided oxygen potential of every sample for different annealing temperature.As shown in Fig.5, potential windows and the divided oxygen potential of the BDND electrode have the same change regular with annealing temperature in the acid medium. From non-annealing to annealing at 600 ¡æ, the potential windows of diamond film become wider and the divided oxygen potential larger.Combining with the analyzing results of Raman spectrum,see Fig.4,the value of ID/IGis larger and G peak shifts to right.When the thin film was annealed at 800 ¡æ, value of the potential window and divided oxygen potential of diamond film are up to the largest,3.28Vand 2.32V,respectively;At this time ,value of ID/IG is the smallest and G peak shifts to left.When the annealing temperature was rised to 1000¡æ,the potential window and divided oxygen potential becomes to narrowest and lowest,2.42V and 1.74V,respectively.In the Raman spectrum of the film,D peak is strong and sharp,at same time ID/IG value becomes to largest from smallest and G peak goes to last right. |

6Â¥2010-02-02 12:06:57
clearsky7228
½ð³æ (ÕýʽдÊÖ)
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panjinping(½ð±Ò+20): 2010-03-02 11:02
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1150¡æÍË»ðºó£¬µçÊÆ´°¿ÚºÍÎöÑõµçλÓÖ¶¼±ä´ó£¬¶ø´ËʱID/IGÖµÓÖ±äС£¬G·åÓÖ×óÒÆ¡£¿ÉÒÔ¿´³ö£¬³ýÁËδÍË»ðºÍ600¡æÍË»ðÁ½ÖÖÇé¿öÍ⣬ÔÚÆäËûζÈÍË»ðµÄ±¡Ä¤µÄµçÊÆ´°¿ÚºÍÎöÑõµçλÓëID/IGÖµºÍG·å·åÎ»ËæÍË»ðζȵı仯¹æÂÉÏà·´¡£ËµÃ÷sp2ÏàÍŴصÄÊýÁ¿¼õÉÙ»ò³ß´ç±äС¡¢Ê¯Ä«ÏàÎÞÐò»¯³Ì¶ÈµÄÔö¼ÓÓÐÀûÓÚÔö´ó½ð¸ÕʯĤµç¼«µÄµçÊÆ´°¿ÚºÍÎöÑõµçλ¡£ After annealing at 1150¡æ,the potential window and divided oxygen potential become larger again while the value of ID/IG smaller and G peak shifts left. One can see that ,except for non-annealing and annealing at 600 ¡æ,the change regular of the potential window and divided oxygen potential for the film annealed at other temperatures to the value of ID/IG and the positions of G peak is opposite with the change of annealing temperature.This indicates that samller number or size of sp2 phase cluster and the increase of the graphite phase disorder degree are in favor of increasing potential window and divided oxygen potential of diamond film electrode.¶ÔÓÚ600¡æÍË»ðÊÔÑù£¬±¡Ä¤µÄ¾§½çÉϾۼ¯µÄ´óÁ¿µÄ·´Ê½¾ÛÒÒȲÊǵ¼ÖµçÊÆ´°¿ÚºÍÎöÑõµçλûÓмõСµÄÔÒò¡£³ýÁË1000¡æ£¬ÆäËüζÈÍË»ðºóµÄµç¼«µÄµçÊÆ´°¿ÚºÍÎöÑõµçλ¶¼±ÈδÍË»ðµç¼«µÄÒª´ó£¬·Ö±ð´óÓÚ3VºÍ2V£¬¶øÒ»°ãÓлúÎïµÄÑõ»¯µçλΪ1.5V¦ä2.0VÖ®¼ä£¬Òò´Ë´ÓÀíÂÛÉÏÀ´Ëµ£¬´ó¶àÊýÓлúÎÛȾÎï¶¼ÄÜÔڵ缫Éϱ»Ñõ»¯¡£To the sample annealed at 600¡æ, lots of trans-polyacetylene gathered in the grain boundaries of thin film is the reason of potential window and divided oxygen potential without lower.Except for 1000 ¡æ,potential windows and divided oxygen potentials of the electrode annealed at the other temperature are larger than that of non-annealing,and larger than 3V and 2V, respectively.While oxygen potential of general organic matter are between 1.5V¦ä2.0V, thus from the theory, most of the organic pollution can be oxidized on the electrode. |

7Â¥2010-02-02 12:53:06
clearsky7228
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panjinping(½ð±Ò+20): 2010-03-02 11:02
|
ÎÒÃÇÒÔǰµÄÑо¿½á¹û±íÃ÷£¬½ð¸Õʯ±¡Ä¤ÖÐÅðŨ¶ÈÔö´ó»áʹĤµç¼«µÄµçÊÆ´°¿ÚºÍÎöÑõµçλ¼õС£»Òò´Ë1000¡æÍË»ðµç¼«µÄÕµçÊÆ´°¿ÚºÍµÍÎöÑõµçλ³ýÁËÓÉÓÚsp2ÏàÍŴصÄÊýÁ¿Ôö¼Ó»ò³ß´ç±ä´óÒÔ¼°Ê¯Ä«ÏàÓÐÐò»¯³Ì¶ÈÔö¼ÓµÄÓ°ÏìÍ⣬»¹ÓÉÓÚ¸ßÎÂÍË»ðÒýÆðÅðµÄÀ©É¢½øÈëÄÉÃ×½ð¸Õʯ¾§Á£ÖеÄÓ°Ï죬ÕâÓëÄÜÆ×ÏÔʾ½ð¸Õʯ¾§Á£ÖÐÅðµÄ´óÁ¿´æÔÚÏàÒ»Ö¡£ The results of our precursor study indicate that the increase of B concentration in diamond thin film can lead to the decease of potential window and divided oxygen potential ;Therefore,to the narrow potential window and low divided oxygen potential of the electrode annealed at 1000¡æ,besides the influence from increase of sp2 phase cluster number , size and graphite phase order degree ,the diffuse and enter nanodiamond grain of B resulting from high temperature annealing is another reason. It agrees with that lots of B exist in diamond grains shown in spectrum. |

8Â¥2010-02-02 13:07:54
panjinping
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zap65535(½ð±Ò-3):ÔĶÁ¹æÔò 2010-03-03 10:21
zap65535(½ð±Ò-3):ÔĶÁ¹æÔò 2010-03-03 10:21
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9Â¥2010-03-02 11:05:15
zap65535
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10Â¥2010-03-03 10:22:36














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