首页> 外文会议>International Conference on Nitride Semiconductors(ICNS-5); 20030525-20030530; Nara; JP >Hall effect measurement of InAsN alloy films grown directly on GaAs(001) substrates by RF-MBE
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Hall effect measurement of InAsN alloy films grown directly on GaAs(001) substrates by RF-MBE

机译:通过RF-MBE测量直接在GaAs(001)衬底上生长的InAsN合金膜的霍尔效应测量

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摘要

Due to the huge bandgap-bowing, a red shift of the band gap energy with increasing nitrogen content is expected for the InAsN alloy. However, a blue shift of the fundamental absorption edge has been observed in a recent study. This result seems to be significantly affected by the Burstein-Moss effect because the InAsN alloy has a large carrier concentration. The Burstein-Moss effect should be ruled out in order to characterize the real band gap energy. In this paper, Hall effect measurements were performed to estimate the carrier concentration of the InAsN alloy films and the Burstein-Moss shift energy was evaluated. Excluding the Burstein-Moss shift energy, a red shift of the real band-gap energy with increasing nitrogen content was observed.
机译:由于巨大的带隙波动,InAsN合金的带隙能量随氮含量的增加而发生红移。然而,在最近的研究中观察到基本吸收边缘的蓝移。该结果似乎受到Burstein-Moss效应的显着影响,因为InAsN合金的载流子浓度很高。应该排除Burstein-Moss效应,以便表征真实的带隙能量。在本文中,进行了霍尔效应测量以估计InAsN合金膜的载流子浓度,并评估了Burstein-Moss位移能。除Burstein-Moss位移能以外,观察到实际带隙能随氮含量的增加而发生红移。

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