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Vertical CdTe:PVP/p-Si-Based Temperature Sensor by Using Aluminum Anode Schottky Contact      
Yazarlar
Hayriye Gökçen Çetinkaya
Gazi Üniversitesi, Türkiye
Doç. Dr. Osman ÇİÇEK Doç. Dr. Osman ÇİÇEK
Kastamonu Üniversitesi, Türkiye
Şemsettin Altındal
Gazi Üniversitesi, Türkiye
Yosef Badalı
İstanbul Ticaret Üniversitesi, Türkiye
Selçuk Demirezen
Amasya Üniversitesi, Türkiye
Özet
The vertical Schottky barrier diode (SBD)-based temperature sensors with the drive modes are a significant issue with more advantageous than the on-chip sensor. The sensitivity (S) and the current conduction mechanisms (CCMs) of the vertical cadmium telluride (CdTe):polyvinyl pyrolidone (PVP)/ p-Si SBD were studied experimentally over the range of 80-340 K and compared with that of the lateral and vertical sensors. It is shown that the low and moderated voltages of the CdTe:PVP/ p-Si corresponding two linear regions of the current-voltage (I-V) outputs are around 0.1-0.3 and 0.4-0.65 V, respectively. The variation of Schottky barrier height (BH; ΦBo) and ideality factor (n) with temperature was obtained according to two linear regions. Energy dispersion of the interface traps (Nss) with changing temperature is additionally analyzed quantitatively. It is concluded that the thermionic-emission (TE) theory with double-Gaussian distribution (GD) is the dominant mechanism resulting the I-V characteristics of the vertical CdTe:PVP/ p-Si SBD in this study. Moreover, in the constant current, the S values at the drive current of 10, 20, and 50μA were resulting in a range of -1.6 to -1.8 mV/K.
Anahtar Kelimeler
Current conduction mechanisms (CCMs) | Schottky contact | temperature sensor | vertical diode
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı IEEE Sensors Journal
Dergi ISSN 1530-437X
Dergi Tarandığı Indeksler SCI
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 01-2022
Cilt No 22
Sayı 23
Sayfalar 22391 / 22397
Doi Numarası 10.1109/JSEN.2022.3212867
Makale Linki http://dx.doi.org/10.1109/jsen.2022.3212867