Synthesis and characterization of ZnO micro-rods and temperature-dependent characterizations of heterojunction of ZnO microrods/CdTe and ZnO microrods/ZnTe structures

Olgar, M. A.; Atasoy, Y.; Bacaksiz, E.; Aydoğan, Şakir

doi:10.1016/j.sna.2017.04.053

Makale Tam Makale Uluslararası 2017

Synthesis and characterization of ZnO micro-rods and temperature-dependent characterizations of heterojunction of ZnO microrods/CdTe and ZnO microrods/ZnTe structures

M. A. Olgar, Y. Atasoy, E. Bacaksiz, Şakir Aydoğan

SENSORS AND ACTUATORS A-PHYSICAL Cilt 261 · ss. 56–65 · 01.07.2017

DOI ile aç

Özet

ZnO microrods were fabricated on ZnO-coated SnO2 glass substrates by spray pyrolysis method. To obtain p-n heterojunction, p type CdTe and ZnTe layers were deposited on ZnO microrods. The structural characterizations demonstrated that ZnO microrods have a hexagonal wurtzite structure with vertically aligned rod morphology. Additionally, hexagonal rod geometry was compressed by coating CdTe layer on micro-sized ZnO rods. The diode type rectifying behaviour of ZnO microrods/CdTe and ZnO microrods/ZnTe heterojunctions have been carried out and the electrical characteristics of both devices have been analyzed with current-voltage measurements as a function of temperature. Although the mismatch between ZnO and ZnTe, the ZnO microrods/ZnTe heterojunction showed good rectifying behaviour at all temperatures. According to the our findings, both ideality factor n and barrier height Phi(b) are temperature dependent due to the deviation from pure thermionic emission theory and inhomogeneity at the interface of ZnO-CdTe and ZnO-ZnTe. (C) 2017 Elsevier B.V. All rights reserved.

Anahtar kelimeler

SEM GROWTH PERFORMANCE XRD HETEROJUNCTION ARRAYS CONTACTS ENHANCEMENT SOLAR-CELLS NANORODS Microrods CDTE THIN-FILM P HETEROJUNCTION ZNO/ZNS

Atıf için künye

Olgar, M. A., Atasoy, Y., Bacaksiz, E., & Aydoğan, Ş. (2017). Synthesis and characterization of ZnO micro-rods and temperature-dependent characterizations of heterojunction of ZnO microrods/CdTe and ZnO microrods/ZnTe structures. SENSORS AND ACTUATORS A-PHYSICAL, 261, 56–65. https://doi.org/10.1016/j.sna.2017.04.053

BibTeX

@article{olgar2017-64891,
  author = {Olgar, M. A. and Atasoy, Y. and Bacaksiz, E. and Aydoğan, Şakir},
  title = {Synthesis and characterization of ZnO micro-rods and temperature-dependent characterizations of heterojunction of ZnO microrods/CdTe and ZnO microrods/ZnTe structures},
  journal = {SENSORS AND ACTUATORS A-PHYSICAL},
  year = {2017},
  volume = {261},
  pages = {56--65},
  issn = {0924-4247},
  doi = {10.1016/j.sna.2017.04.053},
  url = {https://akademik.atauni.edu.tr/yayinlar/64891-synthesis-and-characterization-of-zno-micro-rods-and-temperature-dependent}
}