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¸÷λ´óϺ£º ²»ÖªÓжàÉÙÈËÔÙ×ö¹ØÓÚʯīϩµÄ¿ÎÌ⣬×î½ü·¢ÏÖһƪÎÄÏס°Growth of graphene from solid carbon sources¡± ÊÇÓɹÌÌåÌ¼Ô´ÖÆ±¸Ê¯Ä«Ï©µÄ·½·¨£¬µ«ÎÒûÓмû¹ýÕâÖÖ·½·¨£¬ÏëÊÔÊÔ£¬µ«²»ÖªµÀΣÏÕ²»Î£ÏÕ£¿ÒòΪҪÔÚ800¡ãÒÔÉÏ»¹µÃͨÇâÆøºÍë²Æø£¬ËùÒÔÏëÎÊÎÊ´ó¼Ò£¬ÓÐûÓÐÈË×ö¹ýÕâ·½ÃæµÄ£¬Ð»Ð»£¡£¡£¡¾ßÌå·½·¨ÈçÏ£º A typical process for thermally converting the PMMA films to monolayer PMMA derived graphene (PG) was: (1) evacuate a standard 1-inch quartz tube furnace to 100 mTorr and maintain the temperature at 1000 ºC; (2) introduce the PMMA/Cu film into the furnace with the H2 (50 sccm) and Ar (500 sccm) flow for 10-20 min, maintaining the total pressure <30 Torr; (3) the Cu foil with the graphene was fast-cooled to room temperature under a H2/Ar atmosphere by removing it from the hot-zone of the furnace using a magnetic rod. [ Last edited by zznjut on 2010-12-31 at 10:09 ] |
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