Quantification of electron accumulation at grain boundaries in perovskite polycrystalline films by correlative infrared-spectroscopic nanoimaging and Kelvin probe force microscopy

Ting-Xiao Qin; En-Ming You; Mao-Xin Zhang; Peng Zheng; Xiao-Feng Huang; Song-Yuan Ding; Bing-Wei Mao; Zhong-Qun Tian

doi:10.1038/s41377-021-00524-7

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Quantification of electron accumulation at grain boundaries in perovskite polycrystalline films by correlative infrared-spectroscopic nanoimaging and Kelvin probe force microscopy

Articles

- Quantification of electron accumulation at grain boundaries in perovskite polycrystalline films by correlative infrared-spectroscopic nanoimaging and Kelvin probe force microscopy
- Quantification of electron accumulation at grain boundaries in perovskite polycrystalline films by correlative infrared-spectroscopic nanoimaging and Kelvin probe force microscopy
- LSA 2021年10卷第5期页码：890-897
- Affiliations：
  
  1.State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
  2.School of Aerospace Engineering, Xiamen University, Xiamen, China
- Author bio：
  
  Song-Yuan Ding (syding@xmu.edu.cn)
  Bing-Wei Mao (bwmao@xmu.edu.cn)
- Funds：
- DOI：10.1038/s41377-021-00524-7
  中图分类号：
- 纸质出版日期：2021-05-31，
  
  网络出版日期：2021-04-15，
  
  收稿日期：2020-11-10，
  
  修回日期：2021-03-24，
  
  录用日期：2021-03-29
- Accepted：
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Quantification of electron accumulation at grain boundaries in perovskite polycrystalline films by correlative infrared-spectroscopic nanoimaging and Kelvin probe force microscopy[J]. LSA, 2021,10(5):890-897.

Qin, T. X. et al. Quantification of electron accumulation at grain boundaries in perovskite polycrystalline films by correlative infrared-spectroscopic nanoimaging and Kelvin probe force microscopy. Light: Science & Applications, 10, 890-897 (2021).
Quantification of electron accumulation at grain boundaries in perovskite polycrystalline films by correlative infrared-spectroscopic nanoimaging and Kelvin probe force microscopy[J]. LSA, 2021,10(5):890-897. DOI： 10.1038/s41377-021-00524-7.

Qin, T. X. et al. Quantification of electron accumulation at grain boundaries in perovskite polycrystalline films by correlative infrared-spectroscopic nanoimaging and Kelvin probe force microscopy. Light: Science & Applications, 10, 890-897 (2021). DOI： 10.1038/s41377-021-00524-7.

摘要

Abstract

Organic-inorganic halide perovskites are emerging materials for photovoltaic applications with certified power conversion efficiencies (PCEs) ov

er 25%. Generally

the microstructures of the perovskite materials are critical to the performances of PCEs. However

the role of the nanometer-sized grain boundaries (GBs) that universally existing in polycrystalline perovskite films could be benign or detrimental to solar cell performance

still remains controversial. Thus

nanometer-resolved quantification of charge carrier distribution to elucidate the role of GBs is highly desirable. Here

we employ correlative infrared-spectroscopic nanoimaging by the scattering-type scanning near-field optical microscopy with 20 nm spatial resolution and Kelvin probe force microscopy to quantify the density of electrons accumulated at the GBs in perovskite polycrystalline thin films. It is found that the electron accumulations are enhanced at the GBs and the electron density is increased from 6 × 10

−3

in the dark to 8 × 10

−3

under 10 min illumination with 532 nm light. Our results reveal that the electron accumulations are enhanced at the GBs especially under light illumination

featuring downward band bending toward the GBs

which would assist in electron-hole separation and thus be benign to the solar cell performance.

关键词

Keywords

references

Stranks, S. D. et al. Electron-hole diffusion lengths exceeding 1micrometer in an organometal trihalide perovskite absorber.Science342, 341-344 (2013)..

Dong, Q. F. et al. Electron-hole diffusion lengths>175 μm in solution-grown CH3NH3PbI3single crystals.Science347, 967-970 (2015)..

Shi, D. et al. Low trap-state density and long carrier diffusion in organolead trihalide perovskite single crystals.Science347, 519-522 (2015)..

Tian, W. M. et al. Long-distance charge carrier funneling in perovskite nanowires enabled by built-in halide gradient.J. Am. Chem. Soc.139, 579-582 (2017)..

Chen, L. et al. Toward long-term stability: single-crystal alloys of cesium-containing mixed cation and mixed halide perovskite.J. Am. Chem. Soc.141, 1665-1671 (2019)..

Kojima, A. et al. Organometal halide perovskites as visible-light sensitizers for photovoltaic cells.J. Am. Chem. Soc.131, 6050-6051 (2009)..

Best research-cell efficiencies. Available at:https://www.nrel.gov/pv/cell-efficiency.htmlhttps://www.nrel.gov/pv/cell-efficiency.html(2021).

Huang, F. Z. et al. Gas-assisted preparation of lead iodide perovskite films consisting of a monolayer of single crystalline grains for high efficiency planar solar cells.Nano Energy10, 10-18 (2014)..

Xiao, M. D. et al. A fast deposition-crystallization procedure for highly efficient lead iodide perovskite thin-film solar cells.Angew. Chem. Int. Ed.53, 9898-9903 (2014)..

Jeon, N. J. et al. Solvent engineering for high-performance inorganic-organic hybrid perovskite solar cells.Nat. Mater.13, 897-903 (2014)..

Liu, M. Z., Johnston, M. B.&Snaith, H. J. Efficient planar heterojunction perovskite solar cells by vapour deposition.Nature501, 395-398 (2013)..

Chen, Q. et al. Planar heterojunction perovskite solar cells via vapor-assisted solution process.J. Am. Chem. Soc.136, 622-625 (2014)..

Visoly-Fisher, I. et al. Understanding the beneficial role of grain boundaries in polycrystalline solar cells from single-grain-boundary scanning probe microscopy.Adv. Funct. Mater.16, 649-660 (2006)..

Yan, Y. F. et al. Electrically benign behavior of grain boundaries in polycrystalline CuInSe2films.Phys. Rev. Lett.99, 235504 (2007)..

Li, J. B., Chawla, V.&Clemens, B. M. Investigating the role of grain boundaries in CZTS and CZTSSe thin film solar cells with scanning probe microscopy.Adv. Mater.24, 720-723 (2012)..

Yin, W. J. et al. Engineering grain boundaries in Cu2ZnSnSe4for better cell performance: a first-principle study.Adv. Energy Mater.4, 1300712 (2014)..

Yin, W. J., Shi, T. T.&Yan, Y. F. Unique properties of halide perovskites as possible origins of the superior solar cell performance.Adv. Mater.26, 4653-4658 (2014)..

Yin, W. J. et al. Origin of high electronic quality in structurally disordered CH3NH3PbI3and the passivation effect of Cl and O at grain boundaries.Adv. Electron. Mater.1, 1500044 (2015)..

Long, R., Liu, J.&Prezhdo, O. V. Unravelling the effects of grain boundary and chemical doping on electron-hole recombination in CH3NH3PbI3perovskite by time-domain atomistic simulation.J. Am. Chem. Soc.138, 3884-3890 (2016)..

Qiao, L. et al. Atomic model for alkali metal passivation of point defects at perovskite grain boundaries.ACS Energy Lett.5, 3813-3820 (2020)..

Park, J. S. et al. Accumulation of deep traps at grain boundaries in halide perovskites.ACS Energy Lett.4, 1321-1327 (2019)..

Chen, Q. et al. Controllable self-induced passivation of hybrid lead iodide perovskites toward high performance solar cells.Nano Lett.14, 4158-4163 (2014)..

Kim, G. Y. et al. Efficient carrier separation and intriguing switching of bound charges in inorganic-organic lead halide solar cells.J. Phys. Chem. Lett.6, 2355-2362 (2015)..

Yun, J. S. et al. Benefit of grain boundaries in organic-inorganic halide planar perovskite solar cells.J. Phys. Chem. Lett.6, 875-880 (2015)..

Li, J. J. et al. Microscopic investigation of grain boundaries in organolead halide perovskite solar cells.ACS Appl. Mater. Interfaces7, 28518-28523 (2015)..

Bardeen, J. Surface states and rectification at a metal semi-conductor contact.Phys. Rev.71, 717-727 (1947)..

Shih, M. C. et al. Spatially resolved imaging on photocarrier generations and band alignments at perovskite/PbI2heterointerfaces of perovskite solar cells by light-modulated scanning tunneling microscopy.Nano Lett.17, 1154-1160 (2017)..

Tosun, B. S.&Hillhouse, H. W. Enhanced carrier lifetimes of pure iodide hybrid perovskite via Vapor-Equilibrated Re-Growth (VERG).J. Phys. Chem. Lett.6, 2503-2508 (2015)..

Nie, W. Y. et al. High-efficiency solution-processed perovskite solar cells with millimeter-scale grains.Science347, 522-525 (2015)..

Xiao, Z. G. et al. Solvent annealing of perovskite-induced crystal growth for photovoltaic-device efficiency enhancement.Adv. Mater.26, 6503-6509 (2014)..

Doherty, T. A. S. et al. Performance-limiting nanoscale trap clusters at grain junctions in halide perovskites.Nature580, 360-366 (2020)..

Castro-Méndez, A. F., Hidalgo, J.&Correa-Baena, J. P. The role of grain boundaries in perovskite solar cells.Adv. Energy Mater.9, 1901489 (2019)..

Huber, A. J. et al. Simultaneous IR material recognition and conductivity mappingby nanoscale near-field microscopy.Adv. Mater.19, 2209-2212 (2007)..

Jacob, R. et al. Quantitative determination of the charge carrier concentration of ion implanted silicon by IR-near-field spectroscopy.Opt. Express18, 26206-26213 (2010)..

Stiegler, J. M. et al. Nanoscale free-carrier profiling of individual semiconductor nanowires by infrared near-field nanoscopy.Nano Lett.10, 1387-1392 (2010)..

Huth, F. et al. Infrared-spectroscopic nanoimaging with a thermal source.Nat. Mater.10, 352-356 (2011)..

Stiegler, J. M. et al. Correlative infrared-electron nanoscopy reveals the local structure-conductivity relationship in zinc oxide nanowires.Nat. Commun.3, 1131 (2012)..

Jung, L. et al. Quantification of carrier density gradients along axially doped silicon nanowires using infrared nanoscopy.ACS Photonics6, 1744-1754 (2019)..

Lewin, M. et al. Nanospectroscopy of infrared phonon resonance enables local quantification of electronic properties in doped SrTiO3ceramics.Adv. Funct. Mater.28, 1802834 (2018)..

Hatab, N. A. et al. Free-standing optical gold bowtie nanoantenna with variable gap size for enhanced raman spectroscopy.Nano Lett.10, 4952-4955 (2010)..

Huck, C. et al. Surface-enhanced infrared spectroscopy using nanometer-sized gaps.ACS Nano8, 4908-4914 (2014)..

Knoll, B.&Keilmann, F. Infrared conductivity mapping for nanoelectronics.Appl. Phys. Lett.77, 3980-3982 (2000)..

Yusheng, W. S. et al. Hybrid graphene-perovskite phototransistors with ultrahigh responsivity and gain.Adv. Opt. Mater.3, 1389-1396 (2015)..

Zhang, Y. P. et al. Reversible structural swell-shrink and recoverable optical properties in hybrid inorganic-organic perovskite.ACS Nano10, 7031-7038 (2016)..

Szostak, R. et al. Nanoscale mapping of chemical composition in organic-inorganic hybrid perovskite films.Sci. Adv.5, eaaw6619 (2019)..

Yang, X. Y. et al. Buried interfaces in halide perovskite photovoltaics.Adv. Mater.33, 2006435 (2021)..

Wang, H. X. et al. Kinetic and material properties of interfaces governing slow response and long timescale phenomena in perovskite solar cells.Energy Environ. Sci.12, 2054-2079 (2019)..

Wang, Y. S. et al. The light‐induced field‐effect solar cell concept-perovskite nanoparticle coating introduces polarization enhancing silicon cell efficiency.Adv. Mater.29, 1606370 (2017)..

Munson, K. T. et al. Time-resolved infrared spectroscopy directly probes free and trapped carriers in organo-halide perovskites.ACS Energy Lett.2, 651-658 (2017)..

Cvitkovic, A., Ocelic, N.&Hillenbrand, R. Analytical model for quantitative prediction of material contrasts in scattering-type near-field optical microscopy.Opt. Express15, 8550-8565 (2007)..

Juarez-Perez, E. J. et al. Photoinduced giant dielectric constant in lead halide perovskite solar cells.J. Phys. Chem. Lett.5, 2390-2394 (2014)..

Jakob, D. S. et al. Peak force infrared-kelvin probe force microscopy.Angew. Chem.132, 16217-16224 (2020)..

Schrecongost, D. et al. Rewritable nanoplasmonics through room-temperature phase manipulations of vanadium dioxide.Nano Lett.20, 7760-7766 (2020)..

Noel, N. K. et al. Enhanced photoluminescence and solar cell performancevialewis base passivation of organic-inorganic lead halide perovskites.ACS Nano8, 9815-9821 (2014)..

Jiang, C. S. et al. Electrical conduction channel along the grain boundaries of Cu(In, Ga)Se2thin films.Appl. Phys. Lett.102, 253905 (2013)..

Jiang, C. S. et al. Investigation of micro-electrical properties of Cu2ZnSnSe4thin films using scanning probe microscopy.Sol. Energy Mater. Sol. Cells132, 342-347 (2015)..

Edri, E. et al. Why lead methylammonium Tri-iodide perovskite-based solar cells require a mesoporous electron transporting scaffold (but Not Necessarily a Hole Conductor).Nano Lett.14, 1000-1004 (2014)..

Zhou, Y. Y. et al. Room-temperature crystallization of hybrid-perovskite thin films via solvent-solvent extraction for high-performance solar cells.J. Mater. Chem. A3, 8178-8184 (2015)..

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