Compositional and structural properties of pulsed laser-deposited ZnS: Cr films

Mohammadreza Nematollahi; Xiaodong Yang; Eivind Seim; Per Erik Vullum; Randi Holmestad; Ursula J. Gibson; Turid W. Reenaas

doi:10.1007/s00339-016-9594-9

Compositional and structural properties of pulsed laser-deposited ZnS: Cr films

Mohammadreza Nematollahi^*
, Xiaodong Yang
, Eivind Seim
, Per Erik Vullum
, Randi Holmestad
, Ursula J. Gibson
, Turid W. Reenaas

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

2 Citations (Scopus)

Abstract

We present the properties of Cr-doped zinc sulfide (ZnS:Cr) films deposited on Si(100) by pulsed laser deposition. The films are studied for solar cell applications, and to obtain a high absorption, a high Cr content (2.0–5.0 at.%) is used. It is determined by energy-dispersive X-ray spectroscopy that Cr is relatively uniformly distributed, and that local Cr increases correspond to Zn decreases. The results indicate that most Cr atoms substitute Zn sites. Consistently, electron energy loss and X-ray photoelectron spectroscopy showed that the films contain mainly Cr²⁺ ions. Structural analysis showed that the films are polycrystalline and textured. The films with ~4 % Cr are mainly grown along the hexagonal [001] direction in wurtzite phase. The average lateral grain size decreases with increasing Cr content, and at a given Cr content, increases with increasing growth temperature.

Original language	English
Article number	84
Number of pages	11
Journal	Applied physics A: Materials science and processing
Volume	122
Issue number	2
DOIs	https://doi.org/10.1007/s00339-016-9594-9
Publication status	Published - 1 Feb 2016
Externally published	Yes

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10.1007/s00339-016-9594-9

Cite this

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title = "Compositional and structural properties of pulsed laser-deposited ZnS: Cr films",

abstract = "We present the properties of Cr-doped zinc sulfide (ZnS:Cr) films deposited on Si(100) by pulsed laser deposition. The films are studied for solar cell applications, and to obtain a high absorption, a high Cr content (2.0{\textendash}5.0 at.\%) is used. It is determined by energy-dispersive X-ray spectroscopy that Cr is relatively uniformly distributed, and that local Cr increases correspond to Zn decreases. The results indicate that most Cr atoms substitute Zn sites. Consistently, electron energy loss and X-ray photoelectron spectroscopy showed that the films contain mainly Cr2+ ions. Structural analysis showed that the films are polycrystalline and textured. The films with \textasciitilde{}4 \% Cr are mainly grown along the hexagonal [001] direction in wurtzite phase. The average lateral grain size decreases with increasing Cr content, and at a given Cr content, increases with increasing growth temperature.",

author = "Mohammadreza Nematollahi and Xiaodong Yang and Eivind Seim and Vullum, \{Per Erik\} and Randi Holmestad and Gibson, \{Ursula J.\} and Reenaas, \{Turid W.\}",

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doi = "10.1007/s00339-016-9594-9",

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TY - JOUR

T1 - Compositional and structural properties of pulsed laser-deposited ZnS

T2 - Cr films

AU - Nematollahi, Mohammadreza

AU - Yang, Xiaodong

AU - Seim, Eivind

AU - Vullum, Per Erik

AU - Holmestad, Randi

AU - Gibson, Ursula J.

AU - Reenaas, Turid W.

PY - 2016/2/1

Y1 - 2016/2/1

N2 - We present the properties of Cr-doped zinc sulfide (ZnS:Cr) films deposited on Si(100) by pulsed laser deposition. The films are studied for solar cell applications, and to obtain a high absorption, a high Cr content (2.0–5.0 at.%) is used. It is determined by energy-dispersive X-ray spectroscopy that Cr is relatively uniformly distributed, and that local Cr increases correspond to Zn decreases. The results indicate that most Cr atoms substitute Zn sites. Consistently, electron energy loss and X-ray photoelectron spectroscopy showed that the films contain mainly Cr2+ ions. Structural analysis showed that the films are polycrystalline and textured. The films with ~4 % Cr are mainly grown along the hexagonal [001] direction in wurtzite phase. The average lateral grain size decreases with increasing Cr content, and at a given Cr content, increases with increasing growth temperature.

AB - We present the properties of Cr-doped zinc sulfide (ZnS:Cr) films deposited on Si(100) by pulsed laser deposition. The films are studied for solar cell applications, and to obtain a high absorption, a high Cr content (2.0–5.0 at.%) is used. It is determined by energy-dispersive X-ray spectroscopy that Cr is relatively uniformly distributed, and that local Cr increases correspond to Zn decreases. The results indicate that most Cr atoms substitute Zn sites. Consistently, electron energy loss and X-ray photoelectron spectroscopy showed that the films contain mainly Cr2+ ions. Structural analysis showed that the films are polycrystalline and textured. The films with ~4 % Cr are mainly grown along the hexagonal [001] direction in wurtzite phase. The average lateral grain size decreases with increasing Cr content, and at a given Cr content, increases with increasing growth temperature.

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SN - 0947-8396

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JO - Applied physics A: Materials science and processing

JF - Applied physics A: Materials science and processing

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ER -

Compositional and structural properties of pulsed laser-deposited ZnS: Cr films

Abstract

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