Investigation Of Current-Voltage Measurements of GaAs /AlxGa1−XAs Multiple Quantum Wells with Metal Organic Vapour Phase Epitaxy

Yıl 2021, , 45 - 48, 28.06.2021

Aslan Türkoğlu , Yüksel Ergün

https://doi.org/10.46460/ijiea.915840

Öz

In this study, we have investigated the temperature dependence of Current-Voltage measurements of GaAs /AlGaAs multi-quantum well. Our sample, which consists of inclined layers between the 10 periods GaAs /Al_0.25 Ga_0.75 As quantum wells and n^+-GaAs contact layers in the central region, was grown by the Metal Organic Vapor Phase Epitaxy technique. We have found that tunneling current is effective at low temperatures (<85 K) and high voltages as well as thermal current at high temperatures (> 125 K) and low voltages. In addition, in the intermediate temperature region (65 K

Anahtar Kelimeler

Current-Voltage Measurement, Electric Field, GaAs/AlGaAs Multiple Quantum Wells, Metal Organik Vapor Phase Epitaxy

Metal Organik Buhar Faz Epitaksisi ile Büyütülen GaAs /AlxGa1−xAs Çoklu Kuantum Kuyularının Akım-Voltaj Ölçümlerinin İncelenmesi

Öz

Bu çalışmada, GaAs /AlGaAs çoklu kuantum kuyusunun Akım-Voltaj ölçümlerinin sıcaklığa bağlılığını inceledik. Merkez bölgesinde 10 adet GaAs /Al_0.25 Ga_0.75 As kuantum kuyusu ile n^+-GaAs kontak tabakaları arasında eğimli tabakalardan oluşan örneğimiz, Metal Organik Buhar Fazlı Epitaksi tekniği ile büyütülmüştür. Tünelleme akımının düşük sıcaklıklarda (<85 K) ve yüksek voltajlarda, termal akımın ise yüksek sıcaklıklarda (>125 K) ve düşük voltajlarda etkili olduğu gözlemlendi. Ayrıca, ara sıcaklık bölgesinde (65 K

Anahtar Kelimeler

Akım-Voltaj Ölçümü, Elektrik Alan, GaAs/AlGaAs Çoklu Kuantum Kuyusu, Metal Organik Buhar Fazlı Epitaksi

Kaynakça

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