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Flow of space-charge-limited currents in cubic boron nitride

机译：立方氮化硼中空间电荷限制电流的流动

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Current-voltage characteristics of polycrystal cubic nitride samples are studied at various temperatures. The samples were undoped crystals obtained by the method of direct phase transformation of pyrolytic graphite-like boron nitride and crystals doped with sulfur to obtain n-type conductivity. The current-voltage characteristics consist of three different parts: linear and quadratic segments and the region of dramatic increase in the current, which indicates the existence of space-charge-limited currents. The activation energy, E-l, and concentration of the trapping centers, N-l, are determined. The experimental data obtained allowed us to calculate. for the first time, the mobility and concentration of free carrier in the conduction band. Possible mechanisms giving rise to a dramatic increase in are made the current on the current-voltage characteristics are discussed. (C) 2005 Pleiades Publishing, Inc.
机译：在不同温度下研究了多晶立方氮化物样品的电流-电压特性。样品是通过热解石墨状氮化硼的直接相变方法获得的未掺杂晶体，以及掺杂有硫以获得n型电导率的晶体。电流-电压特性由三个不同部分组成：线性和二次部分以及电流急剧增加的区域，这表明存在空间电荷限制电流。确定活化能E-1和俘获中心的浓度N-1。获得的实验数据使我们能够进行计算。第一次是导带中自由载流子的迁移率和浓度。讨论了引起电流急剧增加的可能机理，讨论了电流-电压特性。 （C）2005年Pleiades Publishing，Inc.

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