Front-contact passivation through 2D/3D perovskite heterojunctions enables efficient bifacial perovskite/silicon tandem solar cells

Esma Ugur; Erkan Aydin; Michele De Bastiani; George T. Harrison; Bumin K. Yildirim; Sam Teale; Bin Chen; Jiang Liu; Mingcong Wang; Akmaral Seitkhan; Maxime Babics; Anand S. Subbiah; Ahmed Ali Said; Randi Azmi; Atteq ur Rehman; Thomas G. Allen; Philip Schulz; Edward H. Sargent; Frédéric Laquai; Stefaan De Wolf

doi:10.1016/j.matt.2023.05.028

Front-contact passivation through 2D/3D perovskite heterojunctions enables efficient bifacial perovskite/silicon tandem solar cells

Esma Ugur, Erkan Aydin, Michele De Bastiani, George T. Harrison, Bumin K. Yildirim, Sam Teale, Bin Chen, Jiang Liu, Mingcong Wang, Akmaral Seitkhan, Maxime Babics, Anand S. Subbiah, Ahmed Ali Said, Randi Azmi, Atteq ur Rehman, Thomas G. Allen, Philip Schulz, Edward H. Sargent, Frédéric Laquai, Stefaan De Wolf

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

Abstract

Surface passivation by thin-slab 2D perovskites is an effective method to suppress interfacial carrier recombination of 3D metal halide perovskite photoabsorbers. However, improving device performance by integrating such 2D/3D perovskite heterojunctions in the sunward, transparent contacts of perovskite solar cells is not evident due to the high exciton binding energies of phase-pure 2D perovskites, which may result in inefficient free-carrier generation and collection. Here, we overcome this challenge by tuning the dimensionality of 2D perovskites via structural isomers of butylammonium (BA) as a small organic cation, occupying the A-site of the 2D perovskite lattice. The discontinuous iso-BA-based 2D crystals on the 3D perovskite surface yield improved interfacial passivation and enhanced hole extraction. Besides an increased open circuit voltage, this remarkably leads to an enhanced photocurrent (∼1 mA cm⁻²) compared with control perovskite solar cells, resulting in bifacial perovskite/silicon tandem solar cells with power generation densities >27 mW cm⁻².

Original language	English
Pages (from-to)	2919-2934
Number of pages	16
Journal	Matter
Volume	6
Issue number	9
DOIs	https://doi.org/10.1016/j.matt.2023.05.028
Publication status	Published - 6 Sept 2023

Keywords

2D/3D perovskite heterojunction
MAP5: Improvement
bifacial tandem solar cells
perovskite/silicon tandem solar cells

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10.1016/j.matt.2023.05.028

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Ugur, E., Aydin, E., De Bastiani, M., Harrison, G. T., Yildirim, B. K., Teale, S., Chen, B., Liu, J., Wang, M., Seitkhan, A., Babics, M., Subbiah, A. S., Said, A. A., Azmi, R., Rehman, A. U., Allen, T. G., Schulz, P., Sargent, E. H., Laquai, F., & De Wolf, S. (2023). Front-contact passivation through 2D/3D perovskite heterojunctions enables efficient bifacial perovskite/silicon tandem solar cells. Matter, 6(9), 2919-2934. https://doi.org/10.1016/j.matt.2023.05.028

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title = "Front-contact passivation through 2D/3D perovskite heterojunctions enables efficient bifacial perovskite/silicon tandem solar cells",

abstract = "Surface passivation by thin-slab 2D perovskites is an effective method to suppress interfacial carrier recombination of 3D metal halide perovskite photoabsorbers. However, improving device performance by integrating such 2D/3D perovskite heterojunctions in the sunward, transparent contacts of perovskite solar cells is not evident due to the high exciton binding energies of phase-pure 2D perovskites, which may result in inefficient free-carrier generation and collection. Here, we overcome this challenge by tuning the dimensionality of 2D perovskites via structural isomers of butylammonium (BA) as a small organic cation, occupying the A-site of the 2D perovskite lattice. The discontinuous iso-BA-based 2D crystals on the 3D perovskite surface yield improved interfacial passivation and enhanced hole extraction. Besides an increased open circuit voltage, this remarkably leads to an enhanced photocurrent (∼1 mA cm−2) compared with control perovskite solar cells, resulting in bifacial perovskite/silicon tandem solar cells with power generation densities >27 mW cm−2.",

keywords = "2D/3D perovskite heterojunction, MAP5: Improvement, bifacial tandem solar cells, perovskite/silicon tandem solar cells",

author = "Esma Ugur and Erkan Aydin and \{De Bastiani\}, Michele and Harrison, \{George T.\} and Yildirim, \{Bumin K.\} and Sam Teale and Bin Chen and Jiang Liu and Mingcong Wang and Akmaral Seitkhan and Maxime Babics and Subbiah, \{Anand S.\} and Said, \{Ahmed Ali\} and Randi Azmi and Rehman, \{Atteq ur\} and Allen, \{Thomas G.\} and Philip Schulz and Sargent, \{Edward H.\} and Fr{\'e}d{\'e}ric Laquai and \{De Wolf\}, Stefaan",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Inc.",

year = "2023",

month = sep,

day = "6",

doi = "10.1016/j.matt.2023.05.028",

language = "English",

volume = "6",

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Ugur, E, Aydin, E, De Bastiani, M, Harrison, GT, Yildirim, BK, Teale, S, Chen, B, Liu, J, Wang, M, Seitkhan, A, Babics, M, Subbiah, AS, Said, AA, Azmi, R, Rehman, AU, Allen, TG, Schulz, P, Sargent, EH, Laquai, F & De Wolf, S 2023, 'Front-contact passivation through 2D/3D perovskite heterojunctions enables efficient bifacial perovskite/silicon tandem solar cells', Matter, vol. 6, no. 9, pp. 2919-2934. https://doi.org/10.1016/j.matt.2023.05.028

TY - JOUR

T1 - Front-contact passivation through 2D/3D perovskite heterojunctions enables efficient bifacial perovskite/silicon tandem solar cells

AU - Ugur, Esma

AU - Aydin, Erkan

AU - De Bastiani, Michele

AU - Harrison, George T.

AU - Yildirim, Bumin K.

AU - Teale, Sam

AU - Chen, Bin

AU - Liu, Jiang

AU - Wang, Mingcong

AU - Seitkhan, Akmaral

AU - Babics, Maxime

AU - Subbiah, Anand S.

AU - Said, Ahmed Ali

AU - Azmi, Randi

AU - Rehman, Atteq ur

AU - Allen, Thomas G.

AU - Schulz, Philip

AU - Sargent, Edward H.

AU - Laquai, Frédéric

AU - De Wolf, Stefaan

PY - 2023/9/6

Y1 - 2023/9/6

N2 - Surface passivation by thin-slab 2D perovskites is an effective method to suppress interfacial carrier recombination of 3D metal halide perovskite photoabsorbers. However, improving device performance by integrating such 2D/3D perovskite heterojunctions in the sunward, transparent contacts of perovskite solar cells is not evident due to the high exciton binding energies of phase-pure 2D perovskites, which may result in inefficient free-carrier generation and collection. Here, we overcome this challenge by tuning the dimensionality of 2D perovskites via structural isomers of butylammonium (BA) as a small organic cation, occupying the A-site of the 2D perovskite lattice. The discontinuous iso-BA-based 2D crystals on the 3D perovskite surface yield improved interfacial passivation and enhanced hole extraction. Besides an increased open circuit voltage, this remarkably leads to an enhanced photocurrent (∼1 mA cm−2) compared with control perovskite solar cells, resulting in bifacial perovskite/silicon tandem solar cells with power generation densities >27 mW cm−2.

AB - Surface passivation by thin-slab 2D perovskites is an effective method to suppress interfacial carrier recombination of 3D metal halide perovskite photoabsorbers. However, improving device performance by integrating such 2D/3D perovskite heterojunctions in the sunward, transparent contacts of perovskite solar cells is not evident due to the high exciton binding energies of phase-pure 2D perovskites, which may result in inefficient free-carrier generation and collection. Here, we overcome this challenge by tuning the dimensionality of 2D perovskites via structural isomers of butylammonium (BA) as a small organic cation, occupying the A-site of the 2D perovskite lattice. The discontinuous iso-BA-based 2D crystals on the 3D perovskite surface yield improved interfacial passivation and enhanced hole extraction. Besides an increased open circuit voltage, this remarkably leads to an enhanced photocurrent (∼1 mA cm−2) compared with control perovskite solar cells, resulting in bifacial perovskite/silicon tandem solar cells with power generation densities >27 mW cm−2.

KW - 2D/3D perovskite heterojunction

KW - MAP5: Improvement

KW - bifacial tandem solar cells

KW - perovskite/silicon tandem solar cells

U2 - 10.1016/j.matt.2023.05.028

DO - 10.1016/j.matt.2023.05.028

M3 - Article

AN - SCOPUS:85166905737

SN - 2590-2393

VL - 6

SP - 2919

EP - 2934

JO - Matter

JF - Matter

IS - 9

ER -

Front-contact passivation through 2D/3D perovskite heterojunctions enables efficient bifacial perovskite/silicon tandem solar cells

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Keywords

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