Alloy Loss Mitigation Through Use of Barrier Layers During CdCl2Processing of Cd0.60Zn0.4Te and Cd0.87Mg0.13Te

Wyatt Metzger; Carey Reich; Drew Swanson; Arthur Onno; Tushar Shimpi; Walajabad Sampath; Zachary Holman

doi:10.1109/PVSC.2018.8548155

Alloy Loss Mitigation Through Use of Barrier Layers During CdCl2Processing of Cd0.60Zn0.4Te and Cd0.87Mg0.13Te

Wyatt Metzger, Carey Reich, Drew Swanson, Arthur Onno, Tushar Shimpi, Walajabad Sampath, Zachary Holman

Materials Science

Research output: Contribution to conference › Paper

3 Scopus Citations

Abstract

The main obstacle to realizing the use of polycrystalline wide bandgap alloys of CdTe with Mg and Zn in PV is the CdCl 2 processing step. This step, essential to CdTe device performance, removes Zn and Mg from the alloy films while producing less of the benefits seen from the process with CdTe. In this study, the use of Al 2 O 3 CdS, and MgZnO films at the free surface of the alloys to prevent loss of Mg or Zn is investigated. It is found that Al 2 O 3 is the most effective at reducing loss of Mg and Zn, followed by CdS and then MgZnO. A new method of evaluating the transition to CdTe from the as deposited alloy is proposed to account for differences in transition behaviors.

Original language	American English
Pages	283-288
Number of pages	6
DOIs	https://doi.org/10.1109/PVSC.2018.8548155
State	Published - 2018
Event	2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) - Waikoloa Village, Hawaii Duration: 10 Jun 2018 → 15 Jun 2018

Conference

Conference	2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC)
City	Waikoloa Village, Hawaii
Period	10/06/18 → 15/06/18

NREL Publication Number

NREL/CP-5K00-73730

Keywords

II-VI alloys
passivation
tandem photovoltaics
thin films

Access to Document

10.1109/PVSC.2018.8548155

Cite this

Metzger, W., Reich, C., Swanson, D., Onno, A., Shimpi, T., Sampath, W., & Holman, Z. (2018). Alloy Loss Mitigation Through Use of Barrier Layers During CdCl2Processing of Cd0.60Zn0.4Te and Cd0.87Mg0.13Te. 283-288. Paper presented at 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC), Waikoloa Village, Hawaii. https://doi.org/10.1109/PVSC.2018.8548155

@conference{1c4df5a0e8604bc6b28088d93ffb5161,

title = "Alloy Loss Mitigation Through Use of Barrier Layers During CdCl2Processing of Cd0.60Zn0.4Te and Cd0.87Mg0.13Te",

abstract = "The main obstacle to realizing the use of polycrystalline wide bandgap alloys of CdTe with Mg and Zn in PV is the CdCl 2 processing step. This step, essential to CdTe device performance, removes Zn and Mg from the alloy films while producing less of the benefits seen from the process with CdTe. In this study, the use of Al 2 O 3 CdS, and MgZnO films at the free surface of the alloys to prevent loss of Mg or Zn is investigated. It is found that Al 2 O 3 is the most effective at reducing loss of Mg and Zn, followed by CdS and then MgZnO. A new method of evaluating the transition to CdTe from the as deposited alloy is proposed to account for differences in transition behaviors.",

keywords = "II-VI alloys, passivation, tandem photovoltaics, thin films",

author = "Wyatt Metzger and Carey Reich and Drew Swanson and Arthur Onno and Tushar Shimpi and Walajabad Sampath and Zachary Holman",

year = "2018",

doi = "10.1109/PVSC.2018.8548155",

language = "American English",

pages = "283--288",

note = "2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) ; Conference date: 10-06-2018 Through 15-06-2018",

}

Metzger, W, Reich, C, Swanson, D, Onno, A, Shimpi, T, Sampath, W & Holman, Z 2018, 'Alloy Loss Mitigation Through Use of Barrier Layers During CdCl2Processing of Cd0.60Zn0.4Te and Cd0.87Mg0.13Te', Paper presented at 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC), Waikoloa Village, Hawaii, 10/06/18 - 15/06/18 pp. 283-288. https://doi.org/10.1109/PVSC.2018.8548155

TY - CONF

T1 - Alloy Loss Mitigation Through Use of Barrier Layers During CdCl2Processing of Cd0.60Zn0.4Te and Cd0.87Mg0.13Te

AU - Metzger, Wyatt

AU - Reich, Carey

AU - Swanson, Drew

AU - Onno, Arthur

AU - Shimpi, Tushar

AU - Sampath, Walajabad

AU - Holman, Zachary

PY - 2018

Y1 - 2018

N2 - The main obstacle to realizing the use of polycrystalline wide bandgap alloys of CdTe with Mg and Zn in PV is the CdCl 2 processing step. This step, essential to CdTe device performance, removes Zn and Mg from the alloy films while producing less of the benefits seen from the process with CdTe. In this study, the use of Al 2 O 3 CdS, and MgZnO films at the free surface of the alloys to prevent loss of Mg or Zn is investigated. It is found that Al 2 O 3 is the most effective at reducing loss of Mg and Zn, followed by CdS and then MgZnO. A new method of evaluating the transition to CdTe from the as deposited alloy is proposed to account for differences in transition behaviors.

AB - The main obstacle to realizing the use of polycrystalline wide bandgap alloys of CdTe with Mg and Zn in PV is the CdCl 2 processing step. This step, essential to CdTe device performance, removes Zn and Mg from the alloy films while producing less of the benefits seen from the process with CdTe. In this study, the use of Al 2 O 3 CdS, and MgZnO films at the free surface of the alloys to prevent loss of Mg or Zn is investigated. It is found that Al 2 O 3 is the most effective at reducing loss of Mg and Zn, followed by CdS and then MgZnO. A new method of evaluating the transition to CdTe from the as deposited alloy is proposed to account for differences in transition behaviors.

KW - II-VI alloys

KW - passivation

KW - tandem photovoltaics

KW - thin films

U2 - 10.1109/PVSC.2018.8548155

DO - 10.1109/PVSC.2018.8548155

M3 - Paper

SP - 283

EP - 288

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

Y2 - 10 June 2018 through 15 June 2018

ER -

Alloy Loss Mitigation Through Use of Barrier Layers During CdCl2Processing of Cd0.60Zn0.4Te and Cd0.87Mg0.13Te

Abstract

Conference

NREL Publication Number

Keywords

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