The DOI matches its Crossref record; 33 of the 33 references it cites were found in a registry or an index.
Universal Approach toward Hysteresis-Free Perovskite Solar Cell via Defect Engineering
Abstract
Organic–inorganic halide perovskite is believed to be a potential candidate for high efficiency solar cells because power conversion efficiency (PCE) was certified to be more than 22%. Nevertheless, mismatch of PCE due to current density ( J )–voltage ( V ) hysteresis in perovskite solar cells is an obstacle to overcome. There has been much lively debate on the origin of J – V hysteresis; however, effective methodology to solve the hysteric problem has not been developed. Here we report a universal approach for hysteresis-free perovskite solar cells via defect engineering. A severe hysteresis observed from the normal mesoscopic structure employing TiO 2 and spiro-MeOTAD is almost removed or does not exist upon doping the pure perovskites, CH 3 NH 3 PbI 3 and HC(NH 2 ) 2 PbI 3, and the mixed cation/anion perovskites, FA 0.85 MA 0.15 PbI 2.55 Br 0.45 and FA 0.85 MA 0.1 Cs 0.05 PbI 2.7 Br 0.3, with potassium iodide. Substantial reductions in low-frequency capacitance and bulk trap density are measured from the KI-doped perovskite, which is indicative of trap-hysteresis correlation. A series of experiments with alkali metal iodides of LiI, NaI, KI, RbI and CsI reveals that potassium ion is the right element for hysteresis-free perovskite. Theoretical studies suggest that the atomistic origin of the hysteresis of perovskite solar cells is not the migration of iodide vacancy but results from the formation of iodide Frenkel defect. Potassium ion is able to prevent the formation of Frenkel defect since K + energetically prefers the interstitial site. A complete removal of hysteresis is more pronounced at mixed perovskite system as compared to pure perovskites, which is explained by lower formation energy of K interstitial (−0.65 V for CH 3 NH 3 PbI 3 vs −1.17 V for mixed perovskite). The developed KI doping methodology is universally adapted for hysteresis-free perovskite regardless of perovskite composition and device structure.
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Cites
Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
Kojima, A., Teshima, K., Shirai, Y., & Miyasaka, T. (2009) · Journal of the American Chemical Society · doi:10.1021/ja809598r · Cited by 23,090
Kim, H.-S., Lee, C.-R., Im, J.-H., Lee, K.-B., Moehl, T., Marchioro, A., Moon, S.-J., Humphry-Baker, R., Yum, J.-H., Moser, J. E., et al. (2012) · Scientific Reports · doi:10.1038/srep00591 · Cited by 8,092
Self-citationIodide management in formamidinium-lead-halide–based perovskite layers for efficient solar cells
Yang, W. S., Park, B.-W., Jung, E. H., Jeon, N. J., Kim, Y. C., Lee, D. U., Shin, S. S., Seo, J., Kim, E. K., Noh, J. H., et al. (2017) · Science · doi:10.1126/science.aan2301 · Cited by 5,445
Self-citationSemiconductor Devices: Physics and Technology
Sze, S. M. (1985) · Cited by 4,096
6.5% efficient perovskite quantum-dot-sensitized solar cell
Im, J.-H., Lee, C.-R., Lee, J.-W., Park, S.-W., & Park, N.-G. (2011) · Nanoscale · doi:10.1039/c1nr10867k · Cited by 3,173
Self-citationA mixed-cation lead mixed-halide perovskite absorber for tandem solar cells
McMeekin, D. P., Sadoughi, G., Rehman, W., Eperon, G. E., Saliba, M., Hörantner, M. T., Haghighirad, A., Sakai, N., Korte, L., Rech, B., et al. (2016) · Science · doi:10.1126/science.aad5845 · Cited by 3,067
Unusual defect physics in CH3NH3PbI3 perovskite solar cell absorber
Yin, W.-J., Shi, T., & Yan, Y. (2014) · Applied Physics Letters · doi:10.1063/1.4864778 · Cited by 2,707
Anomalous Hysteresis in Perovskite Solar Cells
Snaith, H. J., Abate, A., Ball, J. M., Eperon, G. E., Leijtens, T., Noel, N. K., Stranks, S. D., Wang, J. T.-W., Wojciechowski, K., & Zhang, W. (2014) · The Journal of Physical Chemistry Letters · doi:10.1021/jz500113x · Cited by 2,465
Li, Z., Yang, M., Park, J.-S., Wei, S.-H., Berry, J. J., & Zhu, K. (2016) · Chemistry of Materials · doi:10.1021/acs.chemmater.5b04107 · Cited by 2,269
Yuan, Y., & Huang, J. (2016) · Accounts of Chemical Research · doi:10.1021/acs.accounts.5b00420 · Cited by 1,865
Cited by
Kim, M., Kim, G.-H., Lee, T. K., Choi, I. W., Choi, H. W., Jo, Y., Yoon, Y. J., Kim, J. W., Lee, J., Huh, D., et al. (2019) · Joule · doi:10.1016/j.joule.2019.06.014 · Cited by 1,753
Causes and Solutions of Recombination in Perovskite Solar Cells
Chen, J., & Park, N. (2019) · Advanced Materials · doi:10.1002/adma.201803019 · Cited by 733
Self-citationMetal-Doped Lead Halide Perovskites: Synthesis, Properties, and Optoelectronic Applications
Zhou, Y., Chen, J., Bakr, O. M., & Sun, H.-T. (2018) · Chemistry of Materials · doi:10.1021/acs.chemmater.8b02989 · Cited by 650
Defect engineering in thermoelectric materials: what have we learned?
Zheng, Y., Slade, T. J., Hu, L., Tan, X. Y., Luo, Y., Luo, Z.-Z., Xu, J., Yan, Q., & Kanatzidis, M. G. (2021) · Chemical Society Reviews · doi:10.1039/d1cs00347j · Cited by 482
Rationalization of passivation strategies toward high-performance perovskite solar cells
Zhang, Z., Qiao, L., Meng, K., Long, R., Chen, G., & Gao, P. (2023) · Chemical Society Reviews · doi:10.1039/d2cs00217e · Cited by 357
Metadata
- Authors
- Son, D.-Y., Kim, S.-G., Seo, J.-Y., Lee, S.-H., Shin, H., Lee, D., & Park, N.-G.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-01-22
- Volume
- 140
- Issue
- 4
- Pages
- 1358-1364
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2782395797
- Cited by
- 891
- References
- 33
- FWCI
- 43.18
- Type
- journal article
- Language
- en
- Open access
- closed
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