Scopus
🔓 Açık Erişim YÖKSİS Eşleşti
Thermionic Emission of Atomic Layer Deposited MoO<inf>3</inf>/Si UV Photodetectors
Materials · Nisan 2023
YÖKSİS Kayıtları
Thermionic Emission of Atomic Layer Deposited MoO3/Si UV Photodetectors
MATERIALS · 2023 SCI-Expanded
PROFESÖR ŞULE ATEŞ →
Makale Bilgileri
DergiMaterials
Yayın TarihiNisan 2023
Cilt / Sayfa16
Scopus ID2-s2.0-85152937846
Erişim🔓 Açık Erişim
Özet
Ultrathin MoO3 semiconductor nanostructures have garnered significant interest as a promising nanomaterial for transparent nano- and optoelectronics, owing to their exceptional reactivity. Due to the shortage of knowledge about the electronic and optoelectronic properties of MoO3/n-Si via an ALD system of few nanometers, we utilized the preparation of an ultrathin MoO3 film at temperatures of 100, 150, 200, and 250 °C. The effect of the depositing temperatures on using bis(tbutylimido)bis(dimethylamino)molybdenum (VI) as a molybdenum source for highly stable UV photodetectors were reported. The ON–OFF and the photodetector dynamic behaviors of these samples under different applied voltages of 0, 0.5, 1, 2, 3, 4, and 5 V were collected. This study shows that the ultrasmooth and homogenous films of less than a 0.30 nm roughness deposited at 200 °C were used efficiently for high-performance UV photodetector behaviors with a high sheet carrier concentration of 7.6 × 1010 cm−2 and external quantum efficiency of 1.72 × 1011. The electronic parameters were analyzed based on thermionic emission theory, where Cheung and Nord’s methods were utilized to determine the photodetector electronic parameters, such as the ideality factor (n), barrier height (Φ0), and series resistance (Rs). The n-factor values were higher in the low voltage region of the I–V diagram, potentially due to series resistance causing a voltage drop across the interfacial thin film and charge accumulation at the interface states between the MoO3 and Si surfaces.
Yazarlar (7)
1
Mohamed A. Mohamed
ORCID: 0000-0001-8473-8253
2
A. E.H. Gaballah
ORCID: 0000-0002-7837-8404
3
Mohammed Tihtih
ORCID: 0000-0001-7364-9036
4
Issam Derkaoui
ORCID: 0000-0002-2009-082X
5
Shrouk E. Zaki
6
Yasin Eker
7
Şule Ateş
Anahtar Kelimeler
electric and optoelectronics
MoO 3
thermionic emission
ultrathin films
UV illuminations
Kurumlar
Laboratoire de Physique du Solide, Université Sidi Mohamed Ben Abdellah
Fez Morocco
Miskolci Egyetem
Miskolc Hungary
National Research Centre
Giza Egypt
Necmettin Erbakan Üniversitesi
Meram Turkey
Photometry & Radiometry Metrology Division
Giza Egypt
Selçuk Üniversitesi
Selçuklu Turkey
Solar and Space Research Department
Helwan Egypt
Metrikler
6
Atıf
7
Yazar
5
Anahtar Kelime