Barrier enhancement of Al/n-InP Schottky diodes by graphene oxide thin layer

Yükleniyor...
Küçük Resim

Tarih

2019

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Scientific Publishers

Erişim Hakkı

info:eu-repo/semantics/closedAccess
Attribution-ShareAlike 3.0 United States

Özet

In the present work, the surface morphology, structural and optical features of graphene oxide (GO) films are investigated. The Al/GO/n-InP MIS diode is formed by depositing GO layer on n-InP wafer for the barrier enhancement. Interfacial properties of the MIS diode with GO interlayer are extracted from current–voltage (I–V) measurement. The simple diode parameters such as barrier height and ideality factor are extracted from I–V plots, and the values are compared with those of conventional Al/n-InP MS contact. The value of barrier height (BH) for the Al/GO/n-InP contact is found as 0.85 eV. The BH value of 0.85 eV of the Al/GO/n-InP MIS structure is as high as around 100% compared to the value of 0.43 eV of the Al/n-InP reference contacts. We have showed that the value of 0.85 eV is one of the highest values presented for reference contacts with an interlayer.

Açıklama

Anahtar Kelimeler

Graphene Oxide, Thin Films, Band Gap, MIS Diode, X-ray Diffraction

Kaynak

WoS Q Değeri

Q3

Scopus Q Değeri

Q3

Cilt

93

Sayı

4

Künye

Güllü, Ö., Çankaya, M., Rajagopal Reddy, V. (2019). Barrier enhancement of Al/n-InP Schottky diodes by graphene oxide thin layer. Indian Journal of Physics, 93 (4), pp. 467-474. https://doi.org/10.1007/s12648-018-1311-4