Efficient CdTe photovoltaics by co-passivating grain boundaries

Fatih G. Sen; Arun Kumar Mannodi-Kanakkithodi; Tadas Paulauskas; Ce Sun; Jinglong Guo; Luhua Wang; Jake Wands; Angus Rockett; Moon J. Kim; Robert F. Klie; Maria K.Y. Chan

doi:10.1109/PVSC.2018.8547464

Efficient CdTe photovoltaics by co-passivating grain boundaries

Fatih G. Sen, Arun Kumar Mannodi-Kanakkithodi, Tadas Paulauskas, Ce Sun, Jinglong Guo, Luhua Wang, Jake Wands, Angus Rockett, Moon J. Kim, Robert F. Klie, Maria K.Y. Chan

MRC - Materials Research Center

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Scopus citations

Abstract

Efficiency improvements in poly-CdTe can be achieved by fundamental understanding of the role of impurity atoms that can effectively passivate grain boundaries. In the present work, we investigated CdTe grain boundaries using TEM and SMIM, and studied effect of Se and Cu passivation on CdTe grain boundaries using first principles density functional theory (DFT) calculations. Se and Cu segregation to grain boundaries are thermodynamically feasible. Both Cu and Se can effectively reduce midgap states, but most improvement was achieved when Cu and Se are co-doped together, which is predicted to increase the PV efficiency of CdTe. The study we presented can be extended to dopant studies in other solar cell materials.

Original language	English (US)
Title of host publication	2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	3880-3883
Number of pages	4
ISBN (Electronic)	9781538685297
DOIs	https://doi.org/10.1109/PVSC.2018.8547464
State	Published - Nov 26 2018
Event	7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - Waikoloa Village, United States Duration: Jun 10 2018 → Jun 15 2018

Publication series

Name	2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC

Other

Other	7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018
Country/Territory	United States
City	Waikoloa Village
Period	6/10/18 → 6/15/18

Keywords

II-VI semiconductor materials
density functional theory
dopings
grain boundaries
simulation

ASJC Scopus subject areas

Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment
Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/PVSC.2018.8547464

Cite this

Sen, F. G., Mannodi-Kanakkithodi, A. K., Paulauskas, T., Sun, C., Guo, J., Wang, L., Wands, J., Rockett, A., Kim, M. J., Klie, R. F., & Chan, M. K. Y. (2018). Efficient CdTe photovoltaics by co-passivating grain boundaries. In 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC (pp. 3880-3883). Article 8547464 (2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2018.8547464

Sen, Fatih G. ; Mannodi-Kanakkithodi, Arun Kumar ; Paulauskas, Tadas et al. / Efficient CdTe photovoltaics by co-passivating grain boundaries. 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 3880-3883 (2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC).

@inproceedings{1caa79a1144244f29efbbf41006369d1,

title = "Efficient CdTe photovoltaics by co-passivating grain boundaries",

abstract = "Efficiency improvements in poly-CdTe can be achieved by fundamental understanding of the role of impurity atoms that can effectively passivate grain boundaries. In the present work, we investigated CdTe grain boundaries using TEM and SMIM, and studied effect of Se and Cu passivation on CdTe grain boundaries using first principles density functional theory (DFT) calculations. Se and Cu segregation to grain boundaries are thermodynamically feasible. Both Cu and Se can effectively reduce midgap states, but most improvement was achieved when Cu and Se are co-doped together, which is predicted to increase the PV efficiency of CdTe. The study we presented can be extended to dopant studies in other solar cell materials.",

keywords = "II-VI semiconductor materials, density functional theory, dopings, grain boundaries, simulation",

author = "Sen, {Fatih G.} and Mannodi-Kanakkithodi, {Arun Kumar} and Tadas Paulauskas and Ce Sun and Jinglong Guo and Luhua Wang and Jake Wands and Angus Rockett and Kim, {Moon J.} and Klie, {Robert F.} and Chan, {Maria K.Y.}",

note = "Funding Information: We acknowledge funding from the DoE SunShot program under contract # DOE DE-EE0007545. Use of the Center for Nanoscale Materials, an Office of Science user facility, was supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. This research used resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. Publisher Copyright: {\textcopyright} 2018 IEEE.; 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 ; Conference date: 10-06-2018 Through 15-06-2018",

year = "2018",

month = nov,

day = "26",

doi = "10.1109/PVSC.2018.8547464",

language = "English (US)",

series = "2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "3880--3883",

booktitle = "2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC",

address = "United States",

}

Sen, FG, Mannodi-Kanakkithodi, AK, Paulauskas, T, Sun, C, Guo, J, Wang, L, Wands, J, Rockett, A, Kim, MJ, Klie, RF & Chan, MKY 2018, Efficient CdTe photovoltaics by co-passivating grain boundaries. in 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC., 8547464, 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC, Institute of Electrical and Electronics Engineers Inc., pp. 3880-3883, 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018, Waikoloa Village, United States, 6/10/18. https://doi.org/10.1109/PVSC.2018.8547464

Efficient CdTe photovoltaics by co-passivating grain boundaries. / Sen, Fatih G.; Mannodi-Kanakkithodi, Arun Kumar; Paulauskas, Tadas et al.
2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC. Institute of Electrical and Electronics Engineers Inc., 2018. p. 3880-3883 8547464 (2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Efficient CdTe photovoltaics by co-passivating grain boundaries

AU - Sen, Fatih G.

AU - Mannodi-Kanakkithodi, Arun Kumar

AU - Paulauskas, Tadas

AU - Sun, Ce

AU - Guo, Jinglong

AU - Wang, Luhua

AU - Wands, Jake

AU - Rockett, Angus

AU - Kim, Moon J.

AU - Klie, Robert F.

AU - Chan, Maria K.Y.

N1 - Funding Information: We acknowledge funding from the DoE SunShot program under contract # DOE DE-EE0007545. Use of the Center for Nanoscale Materials, an Office of Science user facility, was supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. This research used resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. Publisher Copyright: © 2018 IEEE.

PY - 2018/11/26

Y1 - 2018/11/26

N2 - Efficiency improvements in poly-CdTe can be achieved by fundamental understanding of the role of impurity atoms that can effectively passivate grain boundaries. In the present work, we investigated CdTe grain boundaries using TEM and SMIM, and studied effect of Se and Cu passivation on CdTe grain boundaries using first principles density functional theory (DFT) calculations. Se and Cu segregation to grain boundaries are thermodynamically feasible. Both Cu and Se can effectively reduce midgap states, but most improvement was achieved when Cu and Se are co-doped together, which is predicted to increase the PV efficiency of CdTe. The study we presented can be extended to dopant studies in other solar cell materials.

AB - Efficiency improvements in poly-CdTe can be achieved by fundamental understanding of the role of impurity atoms that can effectively passivate grain boundaries. In the present work, we investigated CdTe grain boundaries using TEM and SMIM, and studied effect of Se and Cu passivation on CdTe grain boundaries using first principles density functional theory (DFT) calculations. Se and Cu segregation to grain boundaries are thermodynamically feasible. Both Cu and Se can effectively reduce midgap states, but most improvement was achieved when Cu and Se are co-doped together, which is predicted to increase the PV efficiency of CdTe. The study we presented can be extended to dopant studies in other solar cell materials.

KW - II-VI semiconductor materials

KW - density functional theory

KW - dopings

KW - grain boundaries

KW - simulation

UR - http://www.scopus.com/inward/record.url?scp=85059889644&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85059889644&partnerID=8YFLogxK

U2 - 10.1109/PVSC.2018.8547464

DO - 10.1109/PVSC.2018.8547464

M3 - Conference contribution

AN - SCOPUS:85059889644

T3 - 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC

SP - 3880

EP - 3883

BT - 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018

Y2 - 10 June 2018 through 15 June 2018

ER -

Sen FG, Mannodi-Kanakkithodi AK, Paulauskas T, Sun C, Guo J, Wang L et al. Efficient CdTe photovoltaics by co-passivating grain boundaries. In 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC. Institute of Electrical and Electronics Engineers Inc. 2018. p. 3880-3883. 8547464. (2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC). doi: 10.1109/PVSC.2018.8547464

Efficient CdTe photovoltaics by co-passivating grain boundaries

Abstract

Publication series

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Keywords

ASJC Scopus subject areas

UN SDGs

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