TY - JOUR
T1 - In-situ CdS/CdTe Heterojuntions Deposited by Pulsed Laser Deposition
AU - Avila-Avendano, Jesus
AU - Mejia, Israel
AU - Alshareef, Husam N.
AU - Guo, Zaibing
AU - Young, Chadwin
AU - Quevedo-Lopez, Manuel A.
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: Author would like to thank CONACYT for partial financial support for this project.
PY - 2016/4/10
Y1 - 2016/4/10
N2 - In this paper pulsed laser deposition (PLD) methods are used to study p-n CdTe/CdS heterojunctions fabricated in-situ. In-situ film deposition allows higher quality p-n interfaces by minimizing spurious contamination from the atmosphere. Morphologic and structural analyses were carried for CdTe films deposited on various substrates and different deposition conditions. The electrical characteristics and performance of the resulting p-n heterojunctions were studied as function of substrate and post-deposition anneal temperature. In-situ growth results on diodes with a rectification factor of ~ 105, an ideality factor < 2, and a reverse saturation current ~ 10-8 A. The carrier concentration in the CdTe film was in the range of ~ 1015 cm-3, as measured by C-V methods. The possible impact of sulfur diffusion from the CdS into the CdTe film is also investigated using High Resolution Rutherford Back-Scattering.
AB - In this paper pulsed laser deposition (PLD) methods are used to study p-n CdTe/CdS heterojunctions fabricated in-situ. In-situ film deposition allows higher quality p-n interfaces by minimizing spurious contamination from the atmosphere. Morphologic and structural analyses were carried for CdTe films deposited on various substrates and different deposition conditions. The electrical characteristics and performance of the resulting p-n heterojunctions were studied as function of substrate and post-deposition anneal temperature. In-situ growth results on diodes with a rectification factor of ~ 105, an ideality factor < 2, and a reverse saturation current ~ 10-8 A. The carrier concentration in the CdTe film was in the range of ~ 1015 cm-3, as measured by C-V methods. The possible impact of sulfur diffusion from the CdS into the CdTe film is also investigated using High Resolution Rutherford Back-Scattering.
UR - http://hdl.handle.net/10754/605000
UR - http://linkinghub.elsevier.com/retrieve/pii/S0040609016300694
UR - http://www.scopus.com/inward/record.url?scp=84963979544&partnerID=8YFLogxK
U2 - 10.1016/j.tsf.2016.04.010
DO - 10.1016/j.tsf.2016.04.010
M3 - Article
SN - 0040-6090
VL - 608
SP - 1
EP - 7
JO - Thin Solid Films
JF - Thin Solid Films
ER -