Stable pure-iodide wide-band-gap perovskites for efficient Si tandem cells via kinetically controlled phase evolution
Su Geun Ji, Ik Jae Park, Hogeun Chang, Jae Hyun Park, Geon Pyo Hong, Back Kyu Choi, Jun Ho Jang, Yeo Jin Choi, Hyun Woo Lim, You Jin Ahn, So Jeong Park, Ki Tae Nam, Taeghwan Hyeon, Jungwon Park, Dong Hoe Kim, Jin Young Kim
* New professors
Halide perovskites, promising top-cell materials for efficient Si tandem solar cells, suffer from halide segregation, which results from the halide mixing necessary for achieving band-gap widening. We report pure-iodide wide-band-gap perovskite top cells that are fundamentally free of halide segregation. Cs and dimethylammonium cations were incorporated simultaneously into the A-site of perovskite structure to increase the band gap while maintaining the tolerance factor. However, the incorporation of dual cations resulted in the simultaneous formation of orthorhombic and hexagonal secondary phases rather than forming the pure perovskite phase, owing to the different precipitation kinetics between cations. We demonstrated that this strategy can only be implemented by the phase-controlled nucleation of the Cs-rich composition that governs the desired phase evolution. The pure-iodide perovskite top cell exhibited excellent photo-stability (1% degradation after 1,000 h of continuous operation; ISOS-L-1I, white LED), and its Si tandem exhibited a high conversion efficiency of 29.4% (28.37% certified).
https://doi.org/10.1016/j.joule.2022.08.006
Published - 2022 Oct 19
crystallization kinetics/thermodynamics
perovskite/Si tandem
photo-stable
pure-iodide wide-band-gap perovskite
tolerance factor control
Energy(all)
10.1016/j.joule.2022.08.006
Dive into the research topics of 'Stable pure-iodide wide-band-gap perovskites for efficient Si tandem cells via kinetically controlled phase evolution'. Together they form a unique fingerprint.
Perovskite Engineering & Materials Science 100%
Energy gap Engineering & Materials Science 82%
Positive ions Engineering & Materials Science 54%
Solar cells Engineering & Materials Science 15%
Conversion efficiency Engineering & Materials Science 15%
Nucleation Engineering & Materials Science 15%
Light emitting diodes Engineering & Materials Science 14%
Degradation Engineering & Materials Science 10%
Ji, S. G., Park, I. J., Chang, H., Park, J. H., Hong, G. P., Choi, B. K., Jang, J. H., Choi, Y. J., Lim, H. W., Ahn, Y. J., Park, S. J., Nam, K. T., Hyeon, T., Park, J., Kim, D. H., & Kim, J. Y. (2022). Stable pure-iodide wide-band-gap perovskites for efficient Si tandem cells via kinetically controlled phase evolution. Joule, 6(10), 2390-2405. https://doi.org/10.1016/j.joule.2022.08.006
Stable pure-iodide wide-band-gap perovskites for efficient Si tandem cells via kinetically controlled phase evolution. / Ji, Su Geun; Park, Ik Jae; Chang, Hogeun et al.
In: Joule, Vol. 6, No. 10, 19.10.2022, p. 2390-2405.
Ji, SG, Park, IJ, Chang, H, Park, JH, Hong, GP, Choi, BK, Jang, JH, Choi, YJ, Lim, HW, Ahn, YJ, Park, SJ, Nam, KT, Hyeon, T, Park, J, Kim, DH & Kim, JY 2022, 'Stable pure-iodide wide-band-gap perovskites for efficient Si tandem cells via kinetically controlled phase evolution', Joule, vol. 6, no. 10, pp. 2390-2405. https://doi.org/10.1016/j.joule.2022.08.006
Ji SG, Park IJ, Chang H, Park JH, Hong GP, Choi BK et al. Stable pure-iodide wide-band-gap perovskites for efficient Si tandem cells via kinetically controlled phase evolution. Joule. 2022 Oct 19;6(10):2390-2405. doi: 10.1016/j.joule.2022.08.006
Ji, Su Geun ; Park, Ik Jae ; Chang, Hogeun et al. / Stable pure-iodide wide-band-gap perovskites for efficient Si tandem cells via kinetically controlled phase evolution. In: Joule. 2022 ; Vol. 6, No. 10. pp. 2390-2405.
@article{d91de6e465824fc996e4045a94d5d512,
title = "Stable pure-iodide wide-band-gap perovskites for efficient Si tandem cells via kinetically controlled phase evolution",
abstract = "Halide perovskites, promising top-cell materials for efficient Si tandem solar cells, suffer from halide segregation, which results from the halide mixing necessary for achieving band-gap widening. We report pure-iodide wide-band-gap perovskite top cells that are fundamentally free of halide segregation. Cs and dimethylammonium cations were incorporated simultaneously into the A-site of perovskite structure to increase the band gap while maintaining the tolerance factor. However, the incorporation of dual cations resulted in the simultaneous formation of orthorhombic and hexagonal secondary phases rather than forming the pure perovskite phase, owing to the different precipitation kinetics between cations. We demonstrated that this strategy can only be implemented by the phase-controlled nucleation of the Cs-rich composition that governs the desired phase evolution. The pure-iodide perovskite top cell exhibited excellent photo-stability (1% degradation after 1,000 h of continuous operation; ISOS-L-1I, white LED), and its Si tandem exhibited a high conversion efficiency of 29.4% (28.37% certified).",
keywords = "crystallization kinetics/thermodynamics, perovskite/Si tandem, photo-stable, pure-iodide wide-band-gap perovskite, tolerance factor control",
author = "Ji, {Su Geun} and Park, {Ik Jae} and Hogeun Chang and Park, {Jae Hyun} and Hong, {Geon Pyo} and Choi, {Back Kyu} and Jang, {Jun Ho} and Choi, {Yeo Jin} and Lim, {Hyun Woo} and Ahn, {You Jin} and Park, {So Jeong} and Nam, {Ki Tae} and Taeghwan Hyeon and Jungwon Park and Kim, {Dong Hoe} and Kim, {Jin Young}",
note = "Funding Information: The authors acknowledge the Energy Business Division, BS Company of LG Electronics for supplying Si bottom cells for the tandem cell fabrication. This work was supported by the National Research Foundation of Korea (NRF) grant funded by Korea government (Ministry of Science and ICT) (no. NRF-2022M3J1A1063226, no. NRF-2021M3H4A1A03057403, and no. NRF-2020R1A2C1102718); LG Display under the LGD-SNU Incubation Program; the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (no. 20203040010320); The Research Center Program of Institute for Basic Science of Korea (no. IBS-R006-D1); and Samsung Research Funding & Incubation Center of Samsung Electronics (no. SRFC-MA2002-03). J.Y.K. supervised the project. S.G.J. and J.Y.K. conceived the idea. S.G.J. I.J.P. D.H.K. and J.Y.K. designed the experiments. S.G.J. characterized and synthesized the perovskite materials and fabricated solar cell devices. I.J.P. helped in the fabrication of perovskite/Si double-junction solar cells. H.C. B.K.C. T.H. and J.P. carried out the observation and analysis of crystallization in perovskite solution by in-situ TEM. J.H.P. helped in the electrical characterization and certification of solar cell devices. G.P.H. helped in performing optical measurement. Y.J.C. helped in the fabrication of perovskite single-junction solar cells. J.H.P. and H.W.L. helped in the long-term stability tests of devices. J.H.J. conducted the NMR analysis. Y.J.C. and S.J.P. helped in performing XRD measurement. Y.J.A. helped in performing SEM observation. S.G.J. I.J.P. H.C. D.H.K. and J.Y.K. wrote the manuscript. All authors contributed to the discussion of the results, provided feedback, and reviewed the manuscript. S.G.J. I.J.P. Y.J.A. and J.Y.K. are inventors on a patent (KR 10-2020-0101527) submitted by R&DB Foundation of Seoul National University that covers the pure-iodide wide-band-gap perovskites. Funding Information: The authors acknowledge the Energy Business Division, BS Company of LG Electronics for supplying Si bottom cells for the tandem cell fabrication. This work was supported by the National Research Foundation of Korea (NRF) grant funded by Korea government (Ministry of Science and ICT) (no. NRF-2022M3J1A1063226 , no. NRF-2021M3H4A1A03057403 , and no. NRF-2020R1A2C1102718 ); LG Display under the LGD-SNU Incubation Program ; the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (no. 20203040010320 ); The Research Center Program of Institute for Basic Science of Korea (no. IBS-R006-D1 ); and Samsung Research Funding & Incubation Center of Samsung Electronics (no. SRFC-MA2002-03 ). Publisher Copyright: {\textcopyright} 2022 Elsevier Inc.",
doi = "10.1016/j.joule.2022.08.006",
journal = "Joule",
T1 - Stable pure-iodide wide-band-gap perovskites for efficient Si tandem cells via kinetically controlled phase evolution
AU - Ji, Su Geun
AU - Park, Ik Jae
AU - Chang, Hogeun
AU - Park, Jae Hyun
AU - Hong, Geon Pyo
AU - Choi, Back Kyu
AU - Jang, Jun Ho
AU - Choi, Yeo Jin
AU - Lim, Hyun Woo
AU - Ahn, You Jin
AU - Park, So Jeong
AU - Nam, Ki Tae
AU - Hyeon, Taeghwan
AU - Park, Jungwon
AU - Kim, Dong Hoe
AU - Kim, Jin Young
N1 - Funding Information: The authors acknowledge the Energy Business Division, BS Company of LG Electronics for supplying Si bottom cells for the tandem cell fabrication. This work was supported by the National Research Foundation of Korea (NRF) grant funded by Korea government (Ministry of Science and ICT) (no. NRF-2022M3J1A1063226, no. NRF-2021M3H4A1A03057403, and no. NRF-2020R1A2C1102718); LG Display under the LGD-SNU Incubation Program; the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (no. 20203040010320); The Research Center Program of Institute for Basic Science of Korea (no. IBS-R006-D1); and Samsung Research Funding & Incubation Center of Samsung Electronics (no. SRFC-MA2002-03). J.Y.K. supervised the project. S.G.J. and J.Y.K. conceived the idea. S.G.J. I.J.P. D.H.K. and J.Y.K. designed the experiments. S.G.J. characterized and synthesized the perovskite materials and fabricated solar cell devices. I.J.P. helped in the fabrication of perovskite/Si double-junction solar cells. H.C. B.K.C. T.H. and J.P. carried out the observation and analysis of crystallization in perovskite solution by in-situ TEM. J.H.P. helped in the electrical characterization and certification of solar cell devices. G.P.H. helped in performing optical measurement. Y.J.C. helped in the fabrication of perovskite single-junction solar cells. J.H.P. and H.W.L. helped in the long-term stability tests of devices. J.H.J. conducted the NMR analysis. Y.J.C. and S.J.P. helped in performing XRD measurement. Y.J.A. helped in performing SEM observation. S.G.J. I.J.P. H.C. D.H.K. and J.Y.K. wrote the manuscript. All authors contributed to the discussion of the results, provided feedback, and reviewed the manuscript. S.G.J. I.J.P. Y.J.A. and J.Y.K. are inventors on a patent (KR 10-2020-0101527) submitted by R&DB Foundation of Seoul National University that covers the pure-iodide wide-band-gap perovskites. Funding Information: The authors acknowledge the Energy Business Division, BS Company of LG Electronics for supplying Si bottom cells for the tandem cell fabrication. This work was supported by the National Research Foundation of Korea (NRF) grant funded by Korea government (Ministry of Science and ICT) (no. NRF-2022M3J1A1063226 , no. NRF-2021M3H4A1A03057403 , and no. NRF-2020R1A2C1102718 ); LG Display under the LGD-SNU Incubation Program ; the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (no. 20203040010320 ); The Research Center Program of Institute for Basic Science of Korea (no. IBS-R006-D1 ); and Samsung Research Funding & Incubation Center of Samsung Electronics (no. SRFC-MA2002-03 ). Publisher Copyright: © 2022 Elsevier Inc.
N2 - Halide perovskites, promising top-cell materials for efficient Si tandem solar cells, suffer from halide segregation, which results from the halide mixing necessary for achieving band-gap widening. We report pure-iodide wide-band-gap perovskite top cells that are fundamentally free of halide segregation. Cs and dimethylammonium cations were incorporated simultaneously into the A-site of perovskite structure to increase the band gap while maintaining the tolerance factor. However, the incorporation of dual cations resulted in the simultaneous formation of orthorhombic and hexagonal secondary phases rather than forming the pure perovskite phase, owing to the different precipitation kinetics between cations. We demonstrated that this strategy can only be implemented by the phase-controlled nucleation of the Cs-rich composition that governs the desired phase evolution. The pure-iodide perovskite top cell exhibited excellent photo-stability (1% degradation after 1,000 h of continuous operation; ISOS-L-1I, white LED), and its Si tandem exhibited a high conversion efficiency of 29.4% (28.37% certified).
AB - Halide perovskites, promising top-cell materials for efficient Si tandem solar cells, suffer from halide segregation, which results from the halide mixing necessary for achieving band-gap widening. We report pure-iodide wide-band-gap perovskite top cells that are fundamentally free of halide segregation. Cs and dimethylammonium cations were incorporated simultaneously into the A-site of perovskite structure to increase the band gap while maintaining the tolerance factor. However, the incorporation of dual cations resulted in the simultaneous formation of orthorhombic and hexagonal secondary phases rather than forming the pure perovskite phase, owing to the different precipitation kinetics between cations. We demonstrated that this strategy can only be implemented by the phase-controlled nucleation of the Cs-rich composition that governs the desired phase evolution. The pure-iodide perovskite top cell exhibited excellent photo-stability (1% degradation after 1,000 h of continuous operation; ISOS-L-1I, white LED), and its Si tandem exhibited a high conversion efficiency of 29.4% (28.37% certified).
KW - crystallization kinetics/thermodynamics
KW - perovskite/Si tandem
KW - photo-stable
KW - pure-iodide wide-band-gap perovskite
KW - tolerance factor control
U2 - 10.1016/j.joule.2022.08.006
DO - 10.1016/j.joule.2022.08.006
JO - Joule
JF - Joule