標題: ENHANCEMENT OF ELECTRON-WAVE REFLECTION BY SUPERLATTICES WITH MULTIPLE STACKS OF MULTIQUANTUM BARRIERS
作者: YEN, ST
TSAI, CM
LEE, CP
LIU, DC
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
公開日期: 28-Feb-1994
摘要: We report a superlattice (SL) with multiple stacks of multiquantum barriers (MQB), which can reflect electrons more effectively than with a single stack of MQB. The reflectivities are calculated and compared with one another for a variety of potential barrier structures. The multistack SL has a wider energy spectrum within which electrons are reflected. Four types of n-GaAs/i-barrier/n-GaAs diodes were fabricated to confirm the calculated results. The current-voltage characteristics measured at 77 K for these diodes show that the turn-on voltage increases with the number of stacks of MQBs in the SL. This is in agreement with our calculated results.
URI: http://dx.doi.org/10.1063/1.110843
http://hdl.handle.net/11536/2611
ISSN: 0003-6951
DOI: 10.1063/1.110843
期刊: APPLIED PHYSICS LETTERS
Volume: 64
Issue: 9
起始頁: 1108
結束頁: 1110
Appears in Collections:Articles