±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 716  |  »Ø¸´: 1
±¾Ìû²úÉú 1 ¸ö ·­ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴

liling713

½ð³æ (³õÈëÎÄ̳)

[ÇóÖú] ¸ß½ð±ÒÇóÓ¢ÎÄÕªÒª·­Òë

1¡¢A global heat transfer model, including the melt convection, argon flow, thermal conduction, thermal radiation and fully coupled boundary conditions, was developed to investigate the argon flow effect on the temperature distribution and melt convection in a directional solidification furnace for silicon solar cells. Both the effect of argon flow rate and the effect of furnace pressure were examined. It was found that the heat transfer at themelt free surface due to the gas convection cannot be neglected, though the argon flow contributes little to the global heat transfer at most radiative surfaces. The shear stress caused by the argon flow at the melt free surface becomes larger with the increase in argon flow rate and it further changes the velocity and temperature distributions in the silicon melt. We also found that the effect of argon flow on the melt convection at a low furnace pressure will be enhanced if the argon mass flow rate is kept constant. The solidification process can thus be controlled by modifying the argon flow rate and the furnace pressure.
2¡¢In this study, we performed a numerical simulation of the growth of multicrystalline silicon ingots using the DSS method and compared the results with the experiments. The thermal flow field and the carbon concentration distribution during the growth process were analyzed under the same operating conditions. The carbon concentration distribution in the grown ingots was measured and the results compared with that of the simulation predictions. The simulation results are in good agreement with the experimental ones. The simulation shows that in a directional solidification furnace carbon impurities accumulate easily in the melt near the central region of the melt/crystal interface due to convection. This is the main reason for the non-uniformity of the carbon concentration in ingots grown in the DSS furnace. In order to improve the uniformity of carbon distribution in the melt, a higher convexity of crystalline front interface in the central region needs to be maintained during the growth process to reduce the strength of melt convection around the crystalline front interface.
3¡¢SiC and Si3N4 precipitatesinmulti-crystalline(mc)siliconforphotovoltaicapplicationhavedetrimental effectsonwafersawingprocessandsolarcellperformance.Inthisstudytheinfluenceofthegrowth rate ontheincorporationofcarbonandnitrogenandtheSiC/Si3N4 precipitateformationduring directionalsolidificationofmc-siliconwasinvestigated.Cylindricalsiliconingotswith6cmdiameter and 4¨C5cmlengthweregrowninalaboratoryscaleverticalgradientfreeze(VGF)furnaceatdifferent growth rates R (R=0.2,1.0and2.2cm/h)andcharacterizedbyinfrared-transmission(IR-TM), FTIR-spectroscopyandlateralphotovoltagescanning(LPS).Theresultsshowthatthegrowthrate R is influencingtheshapeofthephaseboundary,thedistributionofcarbonandnitrogeninthesilicon melt andcrystal,andtheformationofSiCandSi3N4 precipitates.Itwillbeshownthatanimproved crystallizationprocesswithincreasedconvectivetransportinthemeltleadstoprecipitate-freecrystals even athighgrowthrates.

» ²ÂÄãϲ»¶

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Ƶ»Øíííù

ÖÁ×ðľ³æ (Ö°Òµ×÷¼Ò)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ...
Mally89: ½ð±Ò+1, ¸ÐлӦÖú£¡~»¶Ó­³£À´£¡~ºðºð£¡~\(^o^)/~ 2012-04-20 12:52:58
sltmac: ½ð±Ò+40 2012-05-09 08:58:23
sltmac: ½ð±Ò+40 2012-05-09 08:58:29
sltmac: ½ð±Ò+40 2012-05-09 08:58:34
sltmac: ½ð±Ò+40, ·­ÒëEPI+1 2012-05-09 08:58:40
ÔÚÈ«Çò´«ÈÈÄ£ÐÍÖУ¬Ö÷Òª°üÀ¨ÈÛÌå¶ÔÁ÷¡¢ ë²Á÷¡¢ ÈÈ´«µ¼¡¢ ·øÉäÈȺÍÍêÈ«ñîºÏµÄ±ß½çÌõ¼þ£¬ÕâÀïÎÒÃǵ÷²éÁËë²Á÷¶Ôζȷֲ¼µÄÓ°ÏìºÍÈÛÌå¶ÔÁ÷µÄ¹èÌ«ÑôÄÜµç³ØµÄ¶¨ÏòÄý¹Ì¯¡£ÎÒÃǶÔë²Á÷Âʼ°Â¯Ñ¹Á¦¼ÓÒÔÑо¿.ÎÒÃÇ·¢ÏÖËäÈ»ËäÈ»ë²Á÷Á¿¶ÔÈ«ÇòµÄ´«ÈÈ·øÉä±íÃæ¹±Ï׺ÜÉÙ£¬µ«ÊÇÈÔ²»ÄܺöÊÓ½ðÊô×ÔÓɱíÃæÓÉÓÚÆøÌå¶ÔÁ÷²úÉúµÄÈÈÁ¿¡£Ëæ×Åë²Á÷ÂʵÄÔö¼Ó£¬ÖÂÈÛÌå×ÔÓɱíÃæµÄë²Á÷Á¿µÄÓ¦Á¦±äµÃ¸ü´ó£¬½øÒ»²½·¢ÉúÈÚ»¯¡£ÎÒÃÇ»¹·¢ÏÖ£¬ÔڵͯѹÁ¦Ï£¬ÈÛÌå¶ÔÁ÷¶Ôë²Á÷Á¿µÄÓ°ÏìÔöÇ¿£¬µ«ë²ÖÊÁ¿Á÷ÂÊÊÇ·ñ±£³Ö²»±äδ֪¡£Òò´Ë¿ÉÒÔͨ¹ýÐÞ¸Äë²Á÷ÂʺͯѹÀ´¿ØÖÆÄý¹Ì¹ý³Ì¡£
ÔÚÎÒÃǵÄÑо¿ÖУ¬¶à¾§¹èÖý¶§Óà DSS ·½·¨ÊýֵģÄâºÍ±È½Ï¶ÔʵÑé½á¹û½øÐзÖÎö¡£ÎÒÃÇ·ÖÎöÁËÔÚÏàͬµÄ¹¤×÷Ìõ¼þÏÂÈÈÁ÷³¡ºÍÉú³¤¹ý³ÌÖеÄ̼Ũ¶È·Ö²¼¡£²âÁ¿¶§ÖеÄ̼Ũ¶È·Ö²¼£¬±È½Ï½á¹û£¬Ä£ÄâÔ¤²â¡£Ä£Äâ½á¹ûÓëʵÑé½á¹ûÒ»Ö¡£Ä£ÄâÏÔʾ¶¨ÏòÄý¹Ì¹ý³ÌÖЯ̼ÔÓÖÊ»ýÀÛºÜÈÝÒס£ÕâÊÇÓÉÓÚÉú³¤ÔÚ DSS ¯¶§ÖÐ̼Ũ¶ÈµÄ·Ç¾ùÔÈÐÔ²úÉúµÄ¡£ÎªÁ˸ÄÉÆÈÛÌåÖÐ̼·Ö²¼¾ùÔÈ£¬¸ß͹¶ÈµÄ½á¾§Ç°½Ó¿ÚÔÚÖв¿µØÇø¿ÉÒÔ¼õÉÙÇ¿¶ÈµÄÉú³¤£¬Ôڴ˹ý³ÌÖÐÒª±£³ÖÈÛÌå½á¾§Ç°½çÃæ¶ÔÁ÷¡£
̼»¯¹èºÍµª»¯¹èµÈ¾§¹è¶Ô¹â·üÓ¦ÓóÌÐò²úÉú²»ÀûµÄÓ°Ïì£¬ÌØ±ðÊǾ§Ô²Æ¬¾âÇйý³Ì¡£ÎÒÃÇ»¹Ñо¿Á˱ÍÂ鵪µÄÄÉÈëÉú²úÓ°ÏìºÍµª»¯¹è̼»¯¹è³ÁµíÐγɡ£½á¹ûÏÔʾ¹èÈÛÌåºÍË®¾§µÄ±ß½ç£¬±äÐͱÍÂ鵪µÄ·Ö²¼ÐÎ×´Ó°Ïì¾§ÌåµÄÉú³¤¡£
Ïà·ê£¬Ïàʶ£¬ÏàÖª
2Â¥2012-04-19 08:05:00
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ liling713 µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 08600ÉúÎïÓëÒ½Ò©-327 +8 18755400796 2026-04-05 8/400 2026-04-06 11:59 by lijunpoly
[¿¼ÑÐ] 319·Ö085702°²È«¹¤³ÌÇóµ÷¼Á +4 rious 2026-04-05 4/200 2026-04-06 11:08 by ¾²¾²¾²¾²¾²¾²¾²¾
[¿¼ÑÐ] ²ÄÁÏ334Çóµ÷¼Á +19 Eecho# 2026-04-03 19/950 2026-04-06 08:37 by ССÊ÷2024
[¿¼ÑÐ] 302·Ö 085601Çóµ÷¼ÁÍÆ¼ö +11 zyxÉϰ¶£¡ 2026-04-05 11/550 2026-04-05 22:13 by dongzh2009
[¿¼ÑÐ] ²ÄÁϹ¤³Ì302·ÖÇóµ÷¼Á +9 zyxÉϰ¶£¡ 2026-04-04 9/450 2026-04-05 22:08 by ×íÎÌwl
[¿¼ÑÐ] 085600£¬320·ÖÇóµ÷¼Á +7 ´ó²öС×Ó 2026-04-01 8/400 2026-04-05 21:19 by ѧԱ8dgXkO
[¿¼ÑÐ] Ò»Ö¾Ô¸ËÕÖÝ´óѧ²ÄÁϹ¤³Ì£¨085601£©×¨Ë¶ÓпÆÑо­ÀúÈýÏî¹ú½±Á½¸öʵÓÃÐÍרÀûÒ»ÏîÊ¡¼¶Á¢Ïî +10 ´ó»ðɽС»ðɽ 2026-04-05 10/500 2026-04-05 19:58 by СÎÏţСÎÏÅ£
[¿¼ÑÐ] 307·Ö²ÄÁÏרҵÇóµ÷¼Á +7 Hllºú 2026-04-05 7/350 2026-04-05 18:47 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] Çó +5 »¯¹¤×¨Ë¶323·Ö 2026-04-04 5/250 2026-04-05 08:02 by 544594351
[¿¼ÑÐ] ²ÄÁϵ÷¼Á +11 Ò»ÑùYWY 2026-04-02 13/650 2026-04-04 23:10 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 11408 Ò»Ö¾Ô¸Î÷µç£¬277·ÖÇóµ÷¼Á +4 zhouzhen654 2026-04-03 4/200 2026-04-04 18:10 by Öí»á·É
[¿¼ÑÐ] 294Çóµ÷¼Á +6 Grey_Ey 2026-04-03 6/300 2026-04-03 20:46 by ÐÀϲ777
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÖÐũҵ071010£¬×Ü·Ö320Çóµ÷¼Á +7 À§À§À§À§À¤À¤ 2026-04-02 7/350 2026-04-03 17:26 by Yuena_Wang
[¿¼ÑÐ] Ò»Ö¾Ô¸Éî´ó085601²ÄÁϹ¤³Ìרҵ£¨×¨Ë¶£©300·Ö¿ÉÒÔµ÷¼ÁÈ¥ÄÄ +8 10160315 2026-04-02 8/400 2026-04-03 09:36 by hypershenger
[¿¼ÑÐ] 312Çóµ÷¼Á +4 ÉÞÔÂÉ« 2026-04-02 5/250 2026-04-03 08:21 by fangshan711
[¿¼ÑÐ] ÉúÎïѧ308·ÖÇóµ÷¼Á£¨Ò»Ö¾Ô¸»ª¶«Ê¦´ó£© +6 ÏàÐűػá¹ââÍòÕ 2026-03-31 7/350 2026-04-02 23:16 by JourneyLucky
[¿¼ÑÐ] ¿¼Ñе÷¼Á +3 Àîľ×Ó0120 2026-04-02 5/250 2026-04-02 21:45 by dongzh2009
[¿¼ÑÐ] ²ÄÁϹ¤³Ì322·Ö +8 ¹þ¹þ¹þºðºðºð¹þ 2026-04-01 8/400 2026-04-02 11:53 by 3041
[¿¼ÑÐ] Çóµ÷¼Á£¬Ò»Ö¾Ô¸±±ÁÖʳƷÓëÓªÑø095500£¬301·Ö£¬ÒѹýÁù¼¶£¬ÓпÆÑо­Àú +4 ¿ìÀÖ´¢Ðî¹Þ 2026-03-31 4/200 2026-04-01 09:26 by JourneyLucky
[¿¼ÑÐ] 370Çóµ÷¼Á +3 080700µ÷¼Á 2026-03-30 3/150 2026-03-31 01:09 by A_Zhe
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û