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Electrical Analysis of Au/PTB7:PCBM/n-Si Schottky Barrier Diode with Temperature and Illumination Dependence

Year 2026, Volume: 47 Issue: 1, 162 - 170, 27.02.2026
https://doi.org/10.17776/csj.1713520
https://izlik.org/JA48ZY74TM

Abstract

In today's rapidly advancing technological landscape, the use of semiconductors and the associated research on the development of advanced electronic and optoelectronic devices have gained considerable importance. Among these, organic-based semiconductors have emerged as a focal point in recent years due to their promising characteristics. Organic polymers, in particular, are preferred in the field of semiconductor technology owing to several advantages such as low-temperature processing, cost-effective fabrication methods, and the potential for high-efficiency electronic device performance. In this study, metal-polymer-semiconductor (MPS) type Schottky Barrier Diodes (SBDs) were fabricated using the next-generation organic polymer PTB7 and the additive material PCBM in two different weight ratios: 1:1 and 2:1. The electrical properties of the fabricated diodes were systematically investigated by analyzing the ideality factor (n), barrier height (ΦB), and series resistance (Rs) under different environmental and operational conditions. These analyses were carried out under dark conditions, under illumination with an irradiance of 1000 W/m², and across a temperature range of 200 K to 325 K in 25 K intervals. The results aim to contribute to a deeper understanding of the performance and potential applications of PTB7:PCBM-based Schottky diodes in future organic electronics

Supporting Institution

This work has been funded by Scientific Research Project Fund of Düzce University

Project Number

2017.05.02.525

References

  • [1] Hackam, R., & Piarrop, P. (1972). Electrical properties of nickel-low doped n-type gallium arsenide Schottky-barrier diodes. IEEE Trans. Electron Devices, ED-19(12), 1231–1238.
  • [2] Demirezen, S., Sönmez, Z., Aydemir, U., & Altındal, S. (2012). Effect of series resistance and interface states on the I–V, C–V and G/ω–V characteristics in Au/Bi-doped polyvinyl alcohol (PVA)/n-Si Schottky barrier diodes at room temperature. Curr. Appl. Phys., 12, 266–272. https://doi.org/10.1016/j.cap.2011.06.016
  • [3] Liu, J., Shao, S., Fang, G., Meng, B., Xie, Z., & Wang, L. (2012). High-efficiency inverted polymer solar cells with transparent and work-function tunable MoO₃–Al composite film as cathode buffer layer. Adv. Mater., 24, 2774–2779. https://doi.org/10.1002/adma.201200238
  • [4] Han, X., Wu, Z., & Sun, B. (2013). Organic Electronics. Organic Electronics, 14, 1116. https://doi.org/10.1016/j.orgel.2013.01.031
  • [5] Taşçıoğlu, İ., Aydemir, U., Altındal, Ş., & Tunç, T. (2011). Illumination dependent admittance characteristics of Au/Zinc Acetate doped polyvinyl alcohol (PVA:Zn)/n-Si Schottky barrier diodes (SBDs). Int. Congr. Adv. Appl. Phys. Mater. Sci., 1400, 307–311. https://doi.org/10.1063/1.3663133
  • [6] Alialy, S., Tecimer, H., Uslu, H., & Altındal, Ş. (2013). A comparative study on electrical characteristics of Au/n-Si Schottky diodes with and without Bi-doped PVA interfacial layer in dark and under illumination at room temperature. J. Nanomed. Nanotechnol., 4(3), 1000167. https://doi.org/10.4172/2157-7439.1000167
  • [7] Yakuphanoglu, F. (2007). Electronic and photovoltaic properties of p-Si/C70 heterojunction diode. Physica B: Condens. Matter, 400(1–2), 208–211. https://doi.org/10.1021/JP066912Q
  • [8] Tüzün Özmen, Ö. (2014). Effects of PCBM concentration on the electrical properties of the Au/P3HT:PCBM/n-Si (MPS) Schottky barrier diodes. Microelectron. Reliab., 54, 2766–2774. https://doi.org/10.1016/j.microrel.2014.07.144
  • [9] Sze, S. M., & Ng, K. K. (2007). Physics of Semiconductor Devices (3rd ed.). John Wiley & Sons.
  • [10] Altındal Yerişkin, S., Uslu, H., Tunç, T., & Altındal, Ş. (2011). Illumination effect on admittance measurements of polyvinyl alcohol (Co, Zn-doped)/n-Si Schottky barrier diodes in wide frequency and applied bias voltage range. Int. Adv. Appl. Phys. Mater. Sci. Congr. Exhib., 1400, 541–545. https://dx.doi.org/10.1063/1.3663178
  • [11] Card, H. C., & Rhoderick, E. H. (1971). Studies of tunnel MOS diodes I. Interface effects in silicon Schottky diodes. J. Phys. D: Appl. Phys., 4, 1589–1601. https://doi.org/10.1088/0022-3727/4/10/319
  • [12] Hayashi, Y., Hamada, K., Takagi, K., Takasu, A., Takagi, S., & Soga, T. (2006). Investigation of PCBM concentration on photovoltaic characteristics of polymer solar cells with blends of P3HT and PCBM. IEEE 4th World Conf. Photovolt. Energy Convers., 1, 271–274. https://doi.org/10.1109/WCPEC.2006.279443
  • [13] Braun, D., & Heeger, A. J. (1991). Visible-light emission from semiconducting polymer diodes. Appl. Phys. Lett., 58, 1982–1984. https://doi.org/10.1063/1.105039
  • [14] Yağlıoğlu, E., & Tüzün Özmen, Ö. (2014). F4-TCNQ concentration dependence of the current–voltage characteristics in the Au/P3HT:PCBM:F4-TCNQ/n-Si (MPS) Schottky barrier diode. Chin. Phys. B, 23(11), 117306. http://dx.doi.org/10.1088/1674-1056/23/11/117306
  • [15] Tataroğlu, A., & Altındal, Ş. (2009). The analysis of the series resistance and interface states of MIS Schottky diodes at high temperatures using I–V characteristics. J. Alloys Compd., 484, 405–409. http://doi.org/10.1016/j.jallcom.2009.04.119
  • [16] Chand, S. (2004). On the intersecting behaviour of current–voltage characteristics of inhomogeneous Schottky diodes at low temperatures. Semicond. Sci. Technol., 19(1), 82–86. https://doi.org/10.1088/0268-1242/19/1/014
  • [17] Tung, R. T. (2000). Comment on numerical study of electrical transport in homogeneous Schottky diodes. J. Appl. Phys., 88(3), 7366–7368. https://doi.org/10.1063/1.1324996
  • [18] Hudait, M. K., Venkateswarlu, P., & Krupanidhi, S. B. (2001). Electrical transport characteristics of Au/n-GaAs Schottky diodes on n-Ge at low temperatures. Solid-State Electron., 45(1), 133–141. https://doi.org/10.1016/S0038-1101(00)00230-6
There are 18 citations in total.

Details

Primary Language English
Subjects Atomic and Molecular Physics
Journal Section Research Article
Authors

Hüseyin Muzaffer Şağban 0000-0001-8820-5622

Özge Tüzün Özmen 0000-0002-5204-3737

Project Number 2017.05.02.525
Submission Date June 3, 2025
Acceptance Date January 9, 2026
Publication Date February 27, 2026
DOI https://doi.org/10.17776/csj.1713520
IZ https://izlik.org/JA48ZY74TM
Published in Issue Year 2026 Volume: 47 Issue: 1

Cite

APA Şağban, H. M., & Tüzün Özmen, Ö. (2026). Electrical Analysis of Au/PTB7:PCBM/n-Si Schottky Barrier Diode with Temperature and Illumination Dependence. Cumhuriyet Science Journal, 47(1), 162-170. https://doi.org/10.17776/csj.1713520

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