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I Introduction
�쟾�옄�옱猷�, �듅�엳 諛섎룄泥� �옱猷뚯뿉�꽌 �쟾湲곗쟻 �듅�꽦(electrical properties)�쓣 議곗궗�븯�뒗 寃껋�� �긽�떦�엳 以묒슂�븯�떎. �씠�윴 electrical property瑜� 痢≪젙�븯�뒗 諛⑸쾿 以묒뿉 I-V 痢≪젙�씠 �엳�뒗�뜲, �씠�뒗 �슦由ш�� �썝�븯�뒗 �옱猷뚯뿉 �듅�젙 �쟾�븬�쓣 �쓽�젮 二쇱뿀�쓣 �븣 �씠�뿉 諛섏쓳�븯�뿬 �굹����굹�뒗 �쟾瑜섎�� 痢≪젙�븿�쑝濡쒖뜥 洹� �옱猷뚯쓽 鍮꾩���빆�씠�씪�뱺媛� �늻�꽕�쟾瑜�(leakage current) �듅�꽦, 洹몃━怨� �뙆愿� �쟾�븬 (breakdown voltage) �벑�쓣 痢≪젙�븷 �닔 �엳�떎. �씠�윴 痢≪젙媛믪쓣 �넗���濡� �슦由ш�� 利앹갑�븳 �쑀�쟾泥� 諛뺣쭑�쓽 �듅�꽦�쓣 �룊媛��븷 �닔 �엳寃� �맂�떎.
�씠�윴 I-V 痢≪젙�쓣 �씠�빐 �븯湲곗쐞�빐 癒쇱�� �씪諛섏쟻�씤 諛섎룄泥� �옱猷뚯뿉�꽌�쓽 carrier transport phenomena�뿉 ����빐�꽌 媛꾨왂�엳 �븣�븘蹂� �떎�쓬 �룄泥�-遺��룄泥� �궗�씠�쓽 contact�쑝濡쒕���꽣 �쟾瑜섍�� �쓲瑜대뒗 硫붿빱�땲利섏쓽 �씠�빐瑜� �넻�빐 voltage瑜� �쓽�젮以� �븣 �뼱�뼡 諛섏쓳�쓣 �넻�빐 �쟾瑜섍�� �쑀�쟾泥� 諛뺣쭑�쓣 �넻�빐 �쓲瑜닿쾶 �릺�뒗吏� �븣�븘蹂닿쿋�떎. 洹몃━怨� 留덉��留됱쑝濡� �떎�젣 痢≪젙�뿉�꽌 �궗�슜�릺�뒗 �옣鍮꾩뿉 ����빐 媛꾨왂�엳 �냼媛쒗븯�룄濡� �븯寃좊떎.
II. Carrier Transport Phenomena in general materials
�옱猷뚯뿉�꽌 �쟾�옄��� �쟾怨�(hole)怨� 媛숈�� charged particle�쓽 net flow�뿉 �쓽�빐 �쟾瑜섍�� �쓲瑜몃떎. �씠�윴 �쓲由�(flow)�쓣 ��쁳ransport��숇씪 �븯�뒗�뜲 �몢 媛�吏� 湲곕낯�쟻�씤 transport mechanism�쑝濡쒕뒗 diffusion怨� drift媛� �엳�떎. �쟾�옄�뒗 charged particle�쓽 �냽�룄李⑥뿉 �쓽�븳 transport�씠怨� �썑�옄�뒗 �쟾湲곗옣�뿉 �쓽�븳 charged particle�쓽 �쓲由꾩쓣 �굹����궦�떎. �씠�쇅�뿉 �삩�룄李⑥뿉 �쓽�븳 flow�룄 �엳�쓣 �닔 �엳�쑝�굹 size媛� �옉�븘吏덉닔濡� 洹� �슚怨쇰뒗 �쟻�뼱吏꾨떎. �씠�윴 carrier transport phenomena�뒗 �떎�쓬�뿉 �꽕紐낅맆 �옱猷뚯쓽 I-V �듅�꽦�쓣 �씠�빐�븯�뒗�뜲 湲곕낯�씠 �맂�떎.
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1. Carrier drift
留뚯빟 �옱猷뚯뿉 �쟾湲곗옣�쓣 媛��븯硫� �쟾�옄��� hole��� �씠 �쟾���(�깮�왂)
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e mobility�씪怨� �븳�떎.
�뵲�씪�꽌 �쐞�쓽 �떇(II-2)��� (II-4)濡� 遺��꽣 �떎�쓬 愿�怨꾧�� �꽦由쏀븳�떎.
(II-5)
留덉갔媛�吏�濡� �쟾�옄�뿉 ����빐�꽌�룄 �삊 媛숈�� 愿�怨꾧�� �꽦由쏀븳�떎.
(II-6)
鍮꾨줉 �쟾�옄媛� �쟾湲곗옣�뿉 諛섎��濡� ���吏곸씠吏�留� �씪諛섏쟻�쑝濡� �쟾�옄�쓽 drift current�뒗 �쟾湲곗옣怨� 媛숈�� 諛⑺뼢�쑝濡� 蹂몃떎.
�뵲�씪�꽌 �쟾泥� �쟾�옄��� hole�뿉 �쓽�븳 total drift current density�뒗 �쟾�옄, hole 媛곴컖�쓽 drift current density�쓽 �빀怨� 媛숇떎.
(II-7)
�뿬湲곗꽌 �껊뒗 conductivity瑜� �굹����궦�떎.
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