Temperature Coefficients of Perovskite Photovoltaics for Energy Yield Calculations

Joseph Luther; Taylor Moot; Jay Patel; Gabriel McAndrews; Eli Wolf; Daniel Morales; Isaac Gould; Bryan Rosales; Caleb Boyd; Lance Wheeler; Philip Parilla; Steven Johnston; Laura Schelhas; Michael McGehee

doi:10.1021/acsenergylett.1c00748

Temperature Coefficients of Perovskite Photovoltaics for Energy Yield Calculations

Joseph Luther, Taylor Moot, Jay Patel, Gabriel McAndrews, Eli Wolf, Daniel Morales, Isaac Gould, Bryan Rosales, Caleb Boyd, Lance Wheeler, Philip Parilla, Steven Johnston, Laura Schelhas, Michael McGehee

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

48 Scopus Citations

Abstract

Temperature coefficients for maximum power (TPCE), open circuit voltage (VOC), and short circuit current (JSC) are standard specifications included in data sheets for any commercially available photovoltaic module. To date, there has been little work on determining the TPCE for perovskite photovoltaics (PV). We fabricate perovskite solar cells with a TPCE of -0.08 rel %/°C and then disentangle the temperature-dependent effects of the perovskite absorber, contact layers, and interfaces by comparing different device architectures and using drift-diffusion modeling. A main factor contributing to the small TPCE of perovskites is their low intrinsic carrier concentrations with respect to Si and GaAs, which can be explained by its wider band gap. We demonstrate that the unique increase in Eg with increasing temperatures seen for perovskites results in a reduction in JSC but positively influences VOC. The current limiting factors for the TPCE in perovskite PV are identified to originate from interfacial effects.

Original language	American English
Pages (from-to)	2038-2047
Number of pages	10
Journal	ACS Energy Letters
Volume	6
Issue number	5
DOIs	https://doi.org/10.1021/acsenergylett.1c00748 https://doi.org/10.1021/acsenergylett.1c00748
State	Published - 14 May 2021

Bibliographical note

Publisher Copyright:
© 2021 American Chemical Society.

NREL Publication Number

NREL/JA-5900-78044

Keywords

energy yield
perovskite
photovoltaics
temperature coefficients

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

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Luther, J., Moot, T., Patel, J., McAndrews, G., Wolf, E., Morales, D., Gould, I., Rosales, B., Boyd, C., Wheeler, L., Parilla, P., Johnston, S., Schelhas, L., & McGehee, M. (2021). Temperature Coefficients of Perovskite Photovoltaics for Energy Yield Calculations. ACS Energy Letters, 6(5), 2038-2047. https://doi.org/10.1021/acsenergylett.1c00748, https://doi.org/10.1021/acsenergylett.1c00748

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abstract = "Temperature coefficients for maximum power (TPCE), open circuit voltage (VOC), and short circuit current (JSC) are standard specifications included in data sheets for any commercially available photovoltaic module. To date, there has been little work on determining the TPCE for perovskite photovoltaics (PV). We fabricate perovskite solar cells with a TPCE of -0.08 rel %/°C and then disentangle the temperature-dependent effects of the perovskite absorber, contact layers, and interfaces by comparing different device architectures and using drift-diffusion modeling. A main factor contributing to the small TPCE of perovskites is their low intrinsic carrier concentrations with respect to Si and GaAs, which can be explained by its wider band gap. We demonstrate that the unique increase in Eg with increasing temperatures seen for perovskites results in a reduction in JSC but positively influences VOC. The current limiting factors for the TPCE in perovskite PV are identified to originate from interfacial effects.",

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Luther, J, Moot, T, Patel, J, McAndrews, G, Wolf, E, Morales, D, Gould, I, Rosales, B, Boyd, C, Wheeler, L , Parilla, P , Johnston, S , Schelhas, L & McGehee, M 2021, 'Temperature Coefficients of Perovskite Photovoltaics for Energy Yield Calculations', ACS Energy Letters, vol. 6, no. 5, pp. 2038-2047. https://doi.org/10.1021/acsenergylett.1c00748, https://doi.org/10.1021/acsenergylett.1c00748

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AU - Luther, Joseph

AU - Moot, Taylor

AU - Patel, Jay

AU - McAndrews, Gabriel

AU - Wolf, Eli

AU - Morales, Daniel

AU - Gould, Isaac

AU - Rosales, Bryan

AU - Boyd, Caleb

AU - Wheeler, Lance

AU - Parilla, Philip

AU - Johnston, Steven

AU - Schelhas, Laura

AU - McGehee, Michael

PY - 2021/5/14

Y1 - 2021/5/14

N2 - Temperature coefficients for maximum power (TPCE), open circuit voltage (VOC), and short circuit current (JSC) are standard specifications included in data sheets for any commercially available photovoltaic module. To date, there has been little work on determining the TPCE for perovskite photovoltaics (PV). We fabricate perovskite solar cells with a TPCE of -0.08 rel %/°C and then disentangle the temperature-dependent effects of the perovskite absorber, contact layers, and interfaces by comparing different device architectures and using drift-diffusion modeling. A main factor contributing to the small TPCE of perovskites is their low intrinsic carrier concentrations with respect to Si and GaAs, which can be explained by its wider band gap. We demonstrate that the unique increase in Eg with increasing temperatures seen for perovskites results in a reduction in JSC but positively influences VOC. The current limiting factors for the TPCE in perovskite PV are identified to originate from interfacial effects.

AB - Temperature coefficients for maximum power (TPCE), open circuit voltage (VOC), and short circuit current (JSC) are standard specifications included in data sheets for any commercially available photovoltaic module. To date, there has been little work on determining the TPCE for perovskite photovoltaics (PV). We fabricate perovskite solar cells with a TPCE of -0.08 rel %/°C and then disentangle the temperature-dependent effects of the perovskite absorber, contact layers, and interfaces by comparing different device architectures and using drift-diffusion modeling. A main factor contributing to the small TPCE of perovskites is their low intrinsic carrier concentrations with respect to Si and GaAs, which can be explained by its wider band gap. We demonstrate that the unique increase in Eg with increasing temperatures seen for perovskites results in a reduction in JSC but positively influences VOC. The current limiting factors for the TPCE in perovskite PV are identified to originate from interfacial effects.

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Temperature Coefficients of Perovskite Photovoltaics for Energy Yield Calculations

Abstract

Bibliographical note

NREL Publication Number

Keywords

UN SDGs

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