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density of state ³»¿ë Áú¹®

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  • 2022.01.25
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* ¼ö°­ÇÏ´Â °­ÀÇ/±³Àç¿¡ ´ëÇÑ Áú¹®À» ÇØÁÖ¼Å¾ß ´äº¯ÀÌ °¡´ÉÇÕ´Ï´Ù.  
* Áú¹®ÇÏ°íÀÚÇÏ´Â ¹®Á¦¿¡ ´ëÇÑ Á¤´ä/Çؼ³À» ÇÔ²² ¿Ã·ÁÁÖ½Ã¸é ºü¸¥ ´äº¯ÀÌ °¡´ÉÇÕ´Ï´Ù. 
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- Áú¹®ÇÏ´Â ¼±»ý´Ô : ±èµ¿¹Î ¼±»ý´Ô

- Áú¹®ÇÏ´Â °­ÀÇ/±³Àç¸í : ¹ÝµµÃ¼ ÇÙ½É ¿Ï¼º - ¼ÒÀÚ/°øÁ¤ ±âÃÊ

- Áú¹®ÇÏ´Â ¹®Á¦ÀÇ À§Ä¡ : 1°­ÀÇ 39ºÐ 5ÃÊ

- Áú¹® ³»¿ë : ¾È³çÇϼ¼¿ä ¹ÝµµÃ¼ ÇÙ½É ¿Ï¼º ¼ÒÀÚ/°øÁ¤ ¼ö¾÷À» µè´Ù°¡ ÀǾÆÇÑ Á¡ÀÌ »ý°Ü Áú¹®ÇÕ´Ï´Ù.

°­ÀǸ¦ µè´Â µµÁß intrinsic ¹ÝµµÃ¼ÀÇ carrier concentration°ú density of state¸¦ ¼³¸íÇϽô ºÎºÐ¿¡¼­ density of state N(E)¿Í Æ丣¹Ìµð¶ôÇÔ¼ö f(E)ÀÇ °öÀ» ÀûºÐÇÑ °ÍÀÌ ÀüÀÚÀÇ ³óµµ¶ó°í °­ÀÇÇϽô ºÎºÐÀÌ ÀÖ½À´Ï´Ù. 

±× ÈÄ °è»ê °á°ú°¡ N_c*f(E) = n_i¶ó´Â ¼ö½ÄÀÌ ³ª¿À´Âµ¥ ¿©±â¼­ N_c¸¦ density of state¶ó°í ¼³¸íÀ» ÇØÁּ̽À´Ï´Ù. 

ÇÏÁö¸¸ N_c°¡ density of state¶ó´Â °ÍÀÌ ÀÌÇØ°¡ °¡Áö ¾Ê½À´Ï´Ù. Á¦°¡ ¾Ë±â·Î density of state¶õ 3Â÷¿ø¿¡¼­ ´ÜÀ§ ºÎÇÇ´ç ´ÜÀ§¿¡³ÊÁö ´ç stateÀÇ ¼ö ·Î Á¤ÀÇ°¡ µÇ´Âµ¥ ¿©±â¼­ ÀûºÐÀ» ÇϱâÀü N(E)°¡ density of state ¿´´Ù¸é dE·Î ÀûºÐÀ» ÇÑ ÈÄÀÇ °ª N_c´Â ´ÜÀ§ ºÎÇÇ´ç stateÀÇ ¼öÀÎ concentrationÀÌ µÇ¾î¾ß ÇÏÁö¾Ê³ª¿ä?

±×¸®°í n_i = N_c*f(E)¶ó´Â ½ÄÀÇ Â÷¿øÀ» µûÁ® º¸¾Æµµ n_i°¡ concentrationÀÇ Â÷¿øÀ» °®°í f(E)´Â È®·üÇÔ¼ö·Î Â÷¿ø °ªÀ» °®Áö ¾ÊÀ¸¹Ç·Î N_cÀÇ Â÷¿ø ¿ª½Ã concentrationÀÌ µÇ¾î¾ß ÇÏÁö ¾Ê³ª¿ä? N_c°¡ ÀûºÐ ÀüÀÇ N(E)°¡ density of stateÀε¥ ÀûºÐ ÈÄÀÇ °ªÀÎ N_cµµ density of state¶ó´Â °ÍÀÌ ÀÌÇØ°¡ °¡Áö ¾Ê¾Æ Áú¹®µå¸³´Ï´Ù. 



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