Overcoming the Interface Losses in Planar Heterojunction Perovskite-Based Solar Cells

Yi Hou; Wei Chen; Derya Baran; Tobias Stubhan; Norman A. Luechinger; Benjamin Hartmeier; Moses Richter; Jie Min; Shi Chen; Cesar Omar Ramirez Quiroz; Ning Li; Hong Zhang; Thomas Heumueller; Gebhard J. Matt; Andres Osvet; Karen Forberich; Zhi Guo Zhang; Yongfang Li; Benjamin Winter; Peter Schweizer; Erdmann Spiecker; Christoph J. Brabec

doi:10.1002/adma.201504168

Overcoming the Interface Losses in Planar Heterojunction Perovskite-Based Solar Cells

Yi Hou^*, Wei Chen, Derya Baran, Tobias Stubhan, Norman A. Luechinger, Benjamin Hartmeier, Moses Richter, Jie Min, Shi Chen, Cesar Omar Ramirez Quiroz, Ning Li, Hong Zhang, Thomas Heumueller, Gebhard J. Matt, Andres Osvet, Karen Forberich, Zhi Guo Zhang, Yongfang Li, Benjamin Winter, Peter SchweizerErdmann Spiecker, Christoph J. Brabec

^*Corresponding author for this work

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

196 Scopus citations

Abstract

An experiment was conducted to demonstrate that low-temperature processed NiO-based nanocrystal ink (LT-NiO) has the potential to form an almost loss-free hole selective interface for flat heterojunction perovskite-based solar cells. First, The patterned ITO substrates were ultrasonic cleaned with acetone and isopropanol for 10 min each. On cleaned ITO substrate, a dense and smooth layer of LT-NiO was deposited by spin coating and followed by annealing at 70?230°C for 10 min in air to remove organic components. The as-prepared perovskite precursor solution was filtered using 0.45 μm PTFE syringe filter and coated onto the ITO/LT-NiO substrate at a speed of 4000 r.p.m. for 35 s. J-V characteristics of all the devices were measured using a source measurement unit from BoTest. FTPS:FTPS-EQE measurements were carried out using a Vertex 70 from Brucker optics, equipped with QTH lamp, quartz beam splitter and external detector option. A major improvement in open circuit voltage is found by replacing PEDOT:PSS with LT-NiO. A detailed analysis reveals that LT-NiO significantly reduces non-radiative recombination at the PEDOT:PSS/perovskite interface and further enhances the radiative LED efficiency towards unity which brings open circuit voltage closer to the radiative limit.

Original language	English (US)
Pages (from-to)	5112-5120
Number of pages	9
Journal	Advanced Materials
Volume	28
Issue number	25
DOIs	https://doi.org/10.1002/adma.201504168
State	Published - Jul 2016
Externally published	Yes

Keywords

low temperature processing
nickel oxide
non-radiative voltage loss
perovskite solar cells

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1002/adma.201504168

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Hou, Y., Chen, W., Baran, D., Stubhan, T., Luechinger, N. A., Hartmeier, B., Richter, M., Min, J., Chen, S., Quiroz, C. O. R., Li, N., Zhang, H., Heumueller, T., Matt, G. J., Osvet, A., Forberich, K., Zhang, Z. G., Li, Y., Winter, B., ... Brabec, C. J. (2016). Overcoming the Interface Losses in Planar Heterojunction Perovskite-Based Solar Cells. Advanced Materials, 28(25), 5112-5120. https://doi.org/10.1002/adma.201504168

@article{cbb44518b0dc4cc4b953fc7084adf7cb,

title = "Overcoming the Interface Losses in Planar Heterojunction Perovskite-Based Solar Cells",

abstract = "An experiment was conducted to demonstrate that low-temperature processed NiO-based nanocrystal ink (LT-NiO) has the potential to form an almost loss-free hole selective interface for flat heterojunction perovskite-based solar cells. First, The patterned ITO substrates were ultrasonic cleaned with acetone and isopropanol for 10 min each. On cleaned ITO substrate, a dense and smooth layer of LT-NiO was deposited by spin coating and followed by annealing at 70?230°C for 10 min in air to remove organic components. The as-prepared perovskite precursor solution was filtered using 0.45 μm PTFE syringe filter and coated onto the ITO/LT-NiO substrate at a speed of 4000 r.p.m. for 35 s. J-V characteristics of all the devices were measured using a source measurement unit from BoTest. FTPS:FTPS-EQE measurements were carried out using a Vertex 70 from Brucker optics, equipped with QTH lamp, quartz beam splitter and external detector option. A major improvement in open circuit voltage is found by replacing PEDOT:PSS with LT-NiO. A detailed analysis reveals that LT-NiO significantly reduces non-radiative recombination at the PEDOT:PSS/perovskite interface and further enhances the radiative LED efficiency towards unity which brings open circuit voltage closer to the radiative limit.",

keywords = "low temperature processing, nickel oxide, non-radiative voltage loss, perovskite solar cells",

author = "Yi Hou and Wei Chen and Derya Baran and Tobias Stubhan and Luechinger, {Norman A.} and Benjamin Hartmeier and Moses Richter and Jie Min and Shi Chen and Quiroz, {Cesar Omar Ramirez} and Ning Li and Hong Zhang and Thomas Heumueller and Matt, {Gebhard J.} and Andres Osvet and Karen Forberich and Zhang, {Zhi Guo} and Yongfang Li and Benjamin Winter and Peter Schweizer and Erdmann Spiecker and Brabec, {Christoph J.}",

note = "Funding Information: The authors would like to acknowledge the funding of the Erlangen Graduate School in Advanced Optical Technologies (SAOT) at the University of Erlangen-Nuremberg, which is funded by the German Research Foundation (DFG) within the framework of its “Excellence Initiative”. The work was further supported by the Cluster of Excellence “Engineering of Advanced Materials” (EAM). The authors acknowledge financial support from the DFG research training group GRK 1896at Erlangen University and from the Joint Projects Helmholtz-Institute Erlangen N{\"u}rnberg (HI-ERN) under project number DBF01253, respectively. C.J.B. gratefully acknowledges the financial support through the “Aufbruch Bayern” initiative of the state of Bavaria, the Bavarian Initiative “Solar Technologies go Hybrid” (SolTech) and the “Solar Factory of the Future” with the Energy Campus N{\"u}rnberg (EnCN). W. Chen and H. Zhang would also like to acknowledge the financial supporting from China Scholarship Council (CSC). D.B. acknowledges the Bavarian Research Foundation (BFS) and Synthetic carbon allotropes project SFB 953 for financial support.",

year = "2016",

month = jul,

doi = "10.1002/adma.201504168",

language = "English (US)",

volume = "28",

pages = "5112--5120",

journal = "Advanced Materials",

issn = "0935-9648",

publisher = "WILEY-V C H VERLAG GMBH",

number = "25",

}

Hou, Y, Chen, W, Baran, D, Stubhan, T, Luechinger, NA, Hartmeier, B, Richter, M, Min, J, Chen, S, Quiroz, COR, Li, N, Zhang, H, Heumueller, T, Matt, GJ, Osvet, A, Forberich, K, Zhang, ZG, Li, Y, Winter, B, Schweizer, P, Spiecker, E & Brabec, CJ 2016, 'Overcoming the Interface Losses in Planar Heterojunction Perovskite-Based Solar Cells', Advanced Materials, vol. 28, no. 25, pp. 5112-5120. https://doi.org/10.1002/adma.201504168

TY - JOUR

T1 - Overcoming the Interface Losses in Planar Heterojunction Perovskite-Based Solar Cells

AU - Hou, Yi

AU - Chen, Wei

AU - Baran, Derya

AU - Stubhan, Tobias

AU - Luechinger, Norman A.

AU - Hartmeier, Benjamin

AU - Richter, Moses

AU - Min, Jie

AU - Chen, Shi

AU - Quiroz, Cesar Omar Ramirez

AU - Li, Ning

AU - Zhang, Hong

AU - Heumueller, Thomas

AU - Matt, Gebhard J.

AU - Osvet, Andres

AU - Forberich, Karen

AU - Zhang, Zhi Guo

AU - Li, Yongfang

AU - Winter, Benjamin

AU - Schweizer, Peter

AU - Spiecker, Erdmann

AU - Brabec, Christoph J.

N1 - Funding Information: The authors would like to acknowledge the funding of the Erlangen Graduate School in Advanced Optical Technologies (SAOT) at the University of Erlangen-Nuremberg, which is funded by the German Research Foundation (DFG) within the framework of its “Excellence Initiative”. The work was further supported by the Cluster of Excellence “Engineering of Advanced Materials” (EAM). The authors acknowledge financial support from the DFG research training group GRK 1896at Erlangen University and from the Joint Projects Helmholtz-Institute Erlangen Nürnberg (HI-ERN) under project number DBF01253, respectively. C.J.B. gratefully acknowledges the financial support through the “Aufbruch Bayern” initiative of the state of Bavaria, the Bavarian Initiative “Solar Technologies go Hybrid” (SolTech) and the “Solar Factory of the Future” with the Energy Campus Nürnberg (EnCN). W. Chen and H. Zhang would also like to acknowledge the financial supporting from China Scholarship Council (CSC). D.B. acknowledges the Bavarian Research Foundation (BFS) and Synthetic carbon allotropes project SFB 953 for financial support.

PY - 2016/7

Y1 - 2016/7

N2 - An experiment was conducted to demonstrate that low-temperature processed NiO-based nanocrystal ink (LT-NiO) has the potential to form an almost loss-free hole selective interface for flat heterojunction perovskite-based solar cells. First, The patterned ITO substrates were ultrasonic cleaned with acetone and isopropanol for 10 min each. On cleaned ITO substrate, a dense and smooth layer of LT-NiO was deposited by spin coating and followed by annealing at 70?230°C for 10 min in air to remove organic components. The as-prepared perovskite precursor solution was filtered using 0.45 μm PTFE syringe filter and coated onto the ITO/LT-NiO substrate at a speed of 4000 r.p.m. for 35 s. J-V characteristics of all the devices were measured using a source measurement unit from BoTest. FTPS:FTPS-EQE measurements were carried out using a Vertex 70 from Brucker optics, equipped with QTH lamp, quartz beam splitter and external detector option. A major improvement in open circuit voltage is found by replacing PEDOT:PSS with LT-NiO. A detailed analysis reveals that LT-NiO significantly reduces non-radiative recombination at the PEDOT:PSS/perovskite interface and further enhances the radiative LED efficiency towards unity which brings open circuit voltage closer to the radiative limit.

AB - An experiment was conducted to demonstrate that low-temperature processed NiO-based nanocrystal ink (LT-NiO) has the potential to form an almost loss-free hole selective interface for flat heterojunction perovskite-based solar cells. First, The patterned ITO substrates were ultrasonic cleaned with acetone and isopropanol for 10 min each. On cleaned ITO substrate, a dense and smooth layer of LT-NiO was deposited by spin coating and followed by annealing at 70?230°C for 10 min in air to remove organic components. The as-prepared perovskite precursor solution was filtered using 0.45 μm PTFE syringe filter and coated onto the ITO/LT-NiO substrate at a speed of 4000 r.p.m. for 35 s. J-V characteristics of all the devices were measured using a source measurement unit from BoTest. FTPS:FTPS-EQE measurements were carried out using a Vertex 70 from Brucker optics, equipped with QTH lamp, quartz beam splitter and external detector option. A major improvement in open circuit voltage is found by replacing PEDOT:PSS with LT-NiO. A detailed analysis reveals that LT-NiO significantly reduces non-radiative recombination at the PEDOT:PSS/perovskite interface and further enhances the radiative LED efficiency towards unity which brings open circuit voltage closer to the radiative limit.

KW - low temperature processing

KW - nickel oxide

KW - non-radiative voltage loss

KW - perovskite solar cells

UR - http://www.scopus.com/inward/record.url?scp=84977159854&partnerID=8YFLogxK

U2 - 10.1002/adma.201504168

DO - 10.1002/adma.201504168

M3 - Article

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AN - SCOPUS:84977159854

SN - 0935-9648

VL - 28

SP - 5112

EP - 5120

JO - Advanced Materials

JF - Advanced Materials

IS - 25

ER -

Overcoming the Interface Losses in Planar Heterojunction Perovskite-Based Solar Cells

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