Atıf İçin Kopyala
ÇETİNKAYA H. G., Cicek O., ALTINDAL Ş., Badali Y., Demirezen S.
IEEE Sensors Journal, cilt.22, sa.23, ss.22391-22397, 2022 (SCI-Expanded)
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Yayın Türü:
Makale / Tam Makale
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Cilt numarası:
22
Sayı:
23
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Basım Tarihi:
2022
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Doi Numarası:
10.1109/jsen.2022.3212867
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Dergi Adı:
IEEE Sensors Journal
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Derginin Tarandığı İndeksler:
Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
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Sayfa Sayıları:
ss.22391-22397
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Anahtar Kelimeler:
Current conduction mechanisms (CCMs), Schottky contact, temperature sensor, vertical diode
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Gazi Üniversitesi Adresli:
Evet
Özet
IEEEThe vertical Schottky barrier diode (SBD)-based temperature sensors with the drive modes is a significant issue with more advantageous than the on-chip sensor. The sensitivity (S) and the current conduction mechanisms (CCMs) of the vertical CdTe: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 CdTe:PVP/p-Si corresponding two linear-regions of the current-voltage (I-V) outputs are around 0.1 - 0.3V and 0.4 - 0.65V, respectively. The variation of Schottky barrier height (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 are the dominant mechanism resulting the I-V characteristics of the vertical CdTe:PVP/p-Si SBD in this study. Moreover, in constant current, the S values at the drive current of 10μA, 20μA and 50μA were resulting in a range of -1.6 to -1.8 mV/K.