Impact of sputter-instigated plasmonic features in TCO films: For ultrathin photovoltaic applications

Vishnu Awasthi; Vivek Garg; Brajendra S. Sengar; Sushil Kumar Pandey; Aaryashree; Shailendra Kumar; C. Mukherjee; Shaibal Mukherjee

doi:10.1063/1.4978269

Impact of sputter-instigated plasmonic features in TCO films: For ultrathin photovoltaic applications

Vishnu Awasthi, Vivek Garg, Brajendra S. Sengar, Sushil Kumar Pandey, Aaryashree, Shailendra Kumar, C. Mukherjee, Shaibal Mukherjee

Electrical and Computer Engineering

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

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Abstract

The structural and optical properties of Ga-doped ZnO (GZO) and Ga-doped MgZnO (GMZO) individual films are analyzed. Sputter-instigated plasmonic features are observed in individual GZO and GMZO films due to the formation of metal and metal oxide nanoclusters. The plasmon generation is verified by electron energy loss spectra obtained by ultraviolet-photoelectron spectroscopy, spectroscopic ellipsometry, and field-emission scanning-electron microscopy measurements. This is promising in terms of increasing the efficiency of the solar cell by increasing the optical path length in the absorbing layer while keeping the same physical length by light scattering and trapping mechanism.

Original language	English (US)
Article number	103903
Journal	Applied Physics Letters
Volume	110
Issue number	10
DOIs	https://doi.org/10.1063/1.4978269
State	Published - Mar 6 2017

Bibliographical note

Funding Information:
This work was partially supported by Board of Research in Nuclear Sciences (BRNS), Department of Atomic Energy (DAE), Government of India, Clean Energy Research Initiative (CERI), Department of Science and Technology (DST), Government of India, and UGC-DAE CSR. Brajendra S. Sengar and Vivek Garg are also thankful to CSIR and UGC, respectively, for the award of fellowship.

Publisher Copyright:
© 2017 Author(s).

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title = "Impact of sputter-instigated plasmonic features in TCO films: For ultrathin photovoltaic applications",

abstract = "The structural and optical properties of Ga-doped ZnO (GZO) and Ga-doped MgZnO (GMZO) individual films are analyzed. Sputter-instigated plasmonic features are observed in individual GZO and GMZO films due to the formation of metal and metal oxide nanoclusters. The plasmon generation is verified by electron energy loss spectra obtained by ultraviolet-photoelectron spectroscopy, spectroscopic ellipsometry, and field-emission scanning-electron microscopy measurements. This is promising in terms of increasing the efficiency of the solar cell by increasing the optical path length in the absorbing layer while keeping the same physical length by light scattering and trapping mechanism.",

author = "Vishnu Awasthi and Vivek Garg and Sengar, {Brajendra S.} and Pandey, {Sushil Kumar} and Aaryashree and Shailendra Kumar and C. Mukherjee and Shaibal Mukherjee",

note = "Funding Information: This work was partially supported by Board of Research in Nuclear Sciences (BRNS), Department of Atomic Energy (DAE), Government of India, Clean Energy Research Initiative (CERI), Department of Science and Technology (DST), Government of India, and UGC-DAE CSR. Brajendra S. Sengar and Vivek Garg are also thankful to CSIR and UGC, respectively, for the award of fellowship. Publisher Copyright: {\textcopyright} 2017 Author(s).",

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AU - Awasthi, Vishnu

AU - Garg, Vivek

AU - Sengar, Brajendra S.

AU - Pandey, Sushil Kumar

AU - Aaryashree,

AU - Kumar, Shailendra

AU - Mukherjee, C.

AU - Mukherjee, Shaibal

N1 - Funding Information: This work was partially supported by Board of Research in Nuclear Sciences (BRNS), Department of Atomic Energy (DAE), Government of India, Clean Energy Research Initiative (CERI), Department of Science and Technology (DST), Government of India, and UGC-DAE CSR. Brajendra S. Sengar and Vivek Garg are also thankful to CSIR and UGC, respectively, for the award of fellowship. Publisher Copyright: © 2017 Author(s).

PY - 2017/3/6

Y1 - 2017/3/6

N2 - The structural and optical properties of Ga-doped ZnO (GZO) and Ga-doped MgZnO (GMZO) individual films are analyzed. Sputter-instigated plasmonic features are observed in individual GZO and GMZO films due to the formation of metal and metal oxide nanoclusters. The plasmon generation is verified by electron energy loss spectra obtained by ultraviolet-photoelectron spectroscopy, spectroscopic ellipsometry, and field-emission scanning-electron microscopy measurements. This is promising in terms of increasing the efficiency of the solar cell by increasing the optical path length in the absorbing layer while keeping the same physical length by light scattering and trapping mechanism.

AB - The structural and optical properties of Ga-doped ZnO (GZO) and Ga-doped MgZnO (GMZO) individual films are analyzed. Sputter-instigated plasmonic features are observed in individual GZO and GMZO films due to the formation of metal and metal oxide nanoclusters. The plasmon generation is verified by electron energy loss spectra obtained by ultraviolet-photoelectron spectroscopy, spectroscopic ellipsometry, and field-emission scanning-electron microscopy measurements. This is promising in terms of increasing the efficiency of the solar cell by increasing the optical path length in the absorbing layer while keeping the same physical length by light scattering and trapping mechanism.

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Impact of sputter-instigated plasmonic features in TCO films: For ultrathin photovoltaic applications

Abstract

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