The Effect of Back Contact and Rapid Thermal Processing Conditions on Flexible CdTe Device Performance

H. P. Mahabaduge; D. M. Meysing; W. L. Rance; J. M. Burst; M. O. Reese; C. A. Wolden; T. A. Gessert; W. K. Metzger; S. Garner; T. M. Barnes

doi:10.1109/PVSC.2015.7355897

The Effect of Back Contact and Rapid Thermal Processing Conditions on Flexible CdTe Device Performance

H. P. Mahabaduge, D. M. Meysing, W. L. Rance, J. M. Burst, M. O. Reese, C. A. Wolden, T. A. Gessert, W. K. Metzger, S. Garner, T. M. Barnes

Materials Science

Research output: Contribution to conference › Paper › peer-review

3 Scopus Citations

Abstract

Flexible CdTe solar cells on ultra-thin glass substrates can enable new applications that require high specific power, unique form-factors, and low manufacturing costs. To be successful, these cells must be cost competitive, have high efficiency, and have high reliability. Here we present back contact processing conditions that enabled us to achieve over 16% efficiency on flexible Corning® Willow® Glass substrates. We used co-evaporated ZnTe:Cu and Au as our back contact and used rapid thermal processing (RTP) to activate the back contact. Both the ZnTe to Cu ratio and the RTP activation temperature provide independent control over the device performance. We have investigated the influence of various RTP conditions to Cu activation and distribution. Current density-voltage, capacitance-voltage measurements along with device simulations were used to examine the device performance in terms of ZnTe to Cu ratio and rapid thermal activation temperature.

Original language	American English
Number of pages	3
DOIs	https://doi.org/10.1109/PVSC.2015.7355897 https://doi.org/10.1109/PVSC.2015.7355897
State	Published - 14 Dec 2015
Event	42nd IEEE Photovoltaic Specialist Conference, PVSC 2015 - New Orleans, United States Duration: 14 Jun 2015 → 19 Jun 2015

Conference

Conference	42nd IEEE Photovoltaic Specialist Conference, PVSC 2015
Country/Territory	United States
City	New Orleans
Period	14/06/15 → 19/06/15

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

NREL Publication Number

NREL/CP-5K00-63603

Keywords

back contact
CdTe
flexible electronics
RTP treatment

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Mahabaduge, H. P., Meysing, D. M., Rance, W. L., Burst, J. M., Reese, M. O., Wolden, C. A., Gessert, T. A., Metzger, W. K., Garner, S., & Barnes, T. M. (2015). The Effect of Back Contact and Rapid Thermal Processing Conditions on Flexible CdTe Device Performance. Paper presented at 42nd IEEE Photovoltaic Specialist Conference, PVSC 2015, New Orleans, United States. https://doi.org/10.1109/PVSC.2015.7355897, https://doi.org/10.1109/PVSC.2015.7355897

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title = "The Effect of Back Contact and Rapid Thermal Processing Conditions on Flexible CdTe Device Performance",

abstract = "Flexible CdTe solar cells on ultra-thin glass substrates can enable new applications that require high specific power, unique form-factors, and low manufacturing costs. To be successful, these cells must be cost competitive, have high efficiency, and have high reliability. Here we present back contact processing conditions that enabled us to achieve over 16% efficiency on flexible Corning{\textregistered} Willow{\textregistered} Glass substrates. We used co-evaporated ZnTe:Cu and Au as our back contact and used rapid thermal processing (RTP) to activate the back contact. Both the ZnTe to Cu ratio and the RTP activation temperature provide independent control over the device performance. We have investigated the influence of various RTP conditions to Cu activation and distribution. Current density-voltage, capacitance-voltage measurements along with device simulations were used to examine the device performance in terms of ZnTe to Cu ratio and rapid thermal activation temperature.",

keywords = "back contact, CdTe, flexible electronics, RTP treatment",

author = "Mahabaduge, {H. P.} and Meysing, {D. M.} and Rance, {W. L.} and Burst, {J. M.} and Reese, {M. O.} and Wolden, {C. A.} and Gessert, {T. A.} and Metzger, {W. K.} and S. Garner and Barnes, {T. M.}",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 42nd IEEE Photovoltaic Specialist Conference, PVSC 2015 ; Conference date: 14-06-2015 Through 19-06-2015",

year = "2015",

month = dec,

day = "14",

doi = "10.1109/PVSC.2015.7355897",

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Mahabaduge, HP, Meysing, DM, Rance, WL, Burst, JM, Reese, MO, Wolden, CA, Gessert, TA, Metzger, WK, Garner, S & Barnes, TM 2015, 'The Effect of Back Contact and Rapid Thermal Processing Conditions on Flexible CdTe Device Performance', Paper presented at 42nd IEEE Photovoltaic Specialist Conference, PVSC 2015, New Orleans, United States, 14/06/15 - 19/06/15. https://doi.org/10.1109/PVSC.2015.7355897, https://doi.org/10.1109/PVSC.2015.7355897

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AU - Mahabaduge, H. P.

AU - Meysing, D. M.

AU - Rance, W. L.

AU - Burst, J. M.

AU - Reese, M. O.

AU - Wolden, C. A.

AU - Gessert, T. A.

AU - Metzger, W. K.

AU - Garner, S.

AU - Barnes, T. M.

PY - 2015/12/14

Y1 - 2015/12/14

N2 - Flexible CdTe solar cells on ultra-thin glass substrates can enable new applications that require high specific power, unique form-factors, and low manufacturing costs. To be successful, these cells must be cost competitive, have high efficiency, and have high reliability. Here we present back contact processing conditions that enabled us to achieve over 16% efficiency on flexible Corning® Willow® Glass substrates. We used co-evaporated ZnTe:Cu and Au as our back contact and used rapid thermal processing (RTP) to activate the back contact. Both the ZnTe to Cu ratio and the RTP activation temperature provide independent control over the device performance. We have investigated the influence of various RTP conditions to Cu activation and distribution. Current density-voltage, capacitance-voltage measurements along with device simulations were used to examine the device performance in terms of ZnTe to Cu ratio and rapid thermal activation temperature.

AB - Flexible CdTe solar cells on ultra-thin glass substrates can enable new applications that require high specific power, unique form-factors, and low manufacturing costs. To be successful, these cells must be cost competitive, have high efficiency, and have high reliability. Here we present back contact processing conditions that enabled us to achieve over 16% efficiency on flexible Corning® Willow® Glass substrates. We used co-evaporated ZnTe:Cu and Au as our back contact and used rapid thermal processing (RTP) to activate the back contact. Both the ZnTe to Cu ratio and the RTP activation temperature provide independent control over the device performance. We have investigated the influence of various RTP conditions to Cu activation and distribution. Current density-voltage, capacitance-voltage measurements along with device simulations were used to examine the device performance in terms of ZnTe to Cu ratio and rapid thermal activation temperature.

KW - back contact

KW - CdTe

KW - flexible electronics

KW - RTP treatment

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DO - 10.1109/PVSC.2015.7355897

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T2 - 42nd IEEE Photovoltaic Specialist Conference, PVSC 2015

Y2 - 14 June 2015 through 19 June 2015

ER -

The Effect of Back Contact and Rapid Thermal Processing Conditions on Flexible CdTe Device Performance

Abstract

Conference

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Keywords

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