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Cinquino M, Fieramosca A, Mastria R, Polimeno L, Moliterni A, Olieric V, Matsugaki N, Panico R, De Giorgi M, Gigli G, Giannini C, Rizzo A, Sanvitto D, De Marco L. Managing Growth and Dimensionality of Quasi 2D Perovskite Single-Crystalline Flakes for Tunable Excitons Orientation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2102326. [PMID: 34623706 DOI: 10.1002/adma.202102326] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 09/05/2021] [Indexed: 06/13/2023]
Abstract
Hybrid perovskites are among the most promising materials for optoelectronic applications. Their 2D crystalline form is even more interesting since the alternating inorganic and organic layers naturally forge a multiple quantum-well structure, leading to the formation of stable excitonic resonances. Nevertheless, a controlled modulation of the quantum well width, which is defined by the number of inorganic layers (n) between two organic ones, is not trivial and represents the main synthetic challenge in the field. Here, a conceptually innovative approach to easily tune n in lead iodide perovskite single-crystalline flakes is presented. The judicious use of potassium iodide is found to modulate the supersaturation levels of the precursors solution without being part of the final products. This allows to obtain a fine tuning of the n value. The excellent optical quality of the as synthesized flakes guarantees an in-depth analysis by Fourier-space microscopy, revealing that the excitons orientation can be manipulated by modifying the number of inorganic layers. Excitonic out-of-plane component, indeed, is enhanced when "n" is increased. The combined advances in the synthesis and optical characterization fill in the picture of the exciton behavior in low-dimensional perovskite, paving the way to the design of materials with improved optoelectronic characteristics.
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Affiliation(s)
- Marco Cinquino
- CNR NANOTEC - Institute of Nanotechnology, c/o Campus Ecotekne, University of Salento, Via Monteroni, Lecce, 73100, Italy
- Dipartimento di Matematica e Fisica E. De Giorgi, Università Del Salento, Campus Ecotekne, via Monteroni, Lecce, 73100, Italy
| | - Antonio Fieramosca
- CNR NANOTEC - Institute of Nanotechnology, c/o Campus Ecotekne, University of Salento, Via Monteroni, Lecce, 73100, Italy
| | - Rosanna Mastria
- CNR NANOTEC - Institute of Nanotechnology, c/o Campus Ecotekne, University of Salento, Via Monteroni, Lecce, 73100, Italy
| | - Laura Polimeno
- CNR NANOTEC - Institute of Nanotechnology, c/o Campus Ecotekne, University of Salento, Via Monteroni, Lecce, 73100, Italy
- Dipartimento di Matematica e Fisica E. De Giorgi, Università Del Salento, Campus Ecotekne, via Monteroni, Lecce, 73100, Italy
| | - Anna Moliterni
- Institute of Crystallography, CNR-IC, Via Amendola 122/O, Bari, 70126, Italy
| | - Vincent Olieric
- Structural Biology Research Center, Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba, 305-0801, Japan
- Swiss Light Source, Paul Scherrer Institut, Villigen PSI, 5232, Switzerland
| | - Naohiro Matsugaki
- Swiss Light Source, Paul Scherrer Institut, Villigen PSI, 5232, Switzerland
| | - Riccardo Panico
- CNR NANOTEC - Institute of Nanotechnology, c/o Campus Ecotekne, University of Salento, Via Monteroni, Lecce, 73100, Italy
- Dipartimento di Matematica e Fisica E. De Giorgi, Università Del Salento, Campus Ecotekne, via Monteroni, Lecce, 73100, Italy
| | - Milena De Giorgi
- CNR NANOTEC - Institute of Nanotechnology, c/o Campus Ecotekne, University of Salento, Via Monteroni, Lecce, 73100, Italy
| | - Giuseppe Gigli
- CNR NANOTEC - Institute of Nanotechnology, c/o Campus Ecotekne, University of Salento, Via Monteroni, Lecce, 73100, Italy
- Dipartimento di Matematica e Fisica E. De Giorgi, Università Del Salento, Campus Ecotekne, via Monteroni, Lecce, 73100, Italy
| | - Cinzia Giannini
- Institute of Crystallography, CNR-IC, Via Amendola 122/O, Bari, 70126, Italy
| | - Aurora Rizzo
- CNR NANOTEC - Institute of Nanotechnology, c/o Campus Ecotekne, University of Salento, Via Monteroni, Lecce, 73100, Italy
| | - Daniele Sanvitto
- CNR NANOTEC - Institute of Nanotechnology, c/o Campus Ecotekne, University of Salento, Via Monteroni, Lecce, 73100, Italy
| | - Luisa De Marco
- CNR NANOTEC - Institute of Nanotechnology, c/o Campus Ecotekne, University of Salento, Via Monteroni, Lecce, 73100, Italy
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Taurisano N, Bravetti G, Carallo S, Liang M, Ronan O, Spurling D, Coelho J, Nicolosi V, Colella S, Gigli G, Listorti A, Rizzo A. Inclusion of 2D Transition Metal Dichalcogenides in Perovskite Inks and Their Influence on Solar Cell Performance. NANOMATERIALS 2021; 11:nano11071706. [PMID: 34209511 PMCID: PMC8308140 DOI: 10.3390/nano11071706] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 11/16/2022]
Abstract
Organic–inorganic hybrid perovskite materials have raised great interest in recent years due to their excellent optoelectronic properties, which promise stunning improvements in photovoltaic technologies. Moreover, two-dimensional layered materials such as graphene, its derivatives, and transition metal dichalcogenides have been extensively investigated for a wide range of electronic and optoelectronic applications and have recently shown a synergistic effect in combination with hybrid perovskite materials. Here, we report on the inclusion of liquid-phase exfoliated molybdenum disulfide nanosheets into different perovskite precursor solutions, exploring their influence on final device performance. We compared the effect of such additives upon the growth of diverse perovskites, namely CH3NH3PbI3 (MAPbI3) and triple-cation with mixed halides Csx (MA0.17FA0.83)(1−x)Pb (I0.83Br0.17)3 perovskite. We show how for the referential MAPbI3 materials the addition of the MoS2 additive leads to the formation of larger, highly crystalline grains, which result in a remarkable 15% relative improvement in power conversion efficiency. On the other hand, for the mixed cation–halide perovskite no improvements were observed, confirming that the nucleation process for the two materials is differently influenced by the presence of MoS2.
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Affiliation(s)
- Nicola Taurisano
- Dipartimento di Matematica e Fisica “E. De Giorgi”, Campus Ecotekne, Università del Salento, Via Arnesano, 73100 Lecce, Italy; (N.T.); (G.B.); (G.G.)
| | - Gianluca Bravetti
- Dipartimento di Matematica e Fisica “E. De Giorgi”, Campus Ecotekne, Università del Salento, Via Arnesano, 73100 Lecce, Italy; (N.T.); (G.B.); (G.G.)
| | - Sonia Carallo
- CNR NANOTEC, c/o Campus Ecotekne, Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy; (S.C.); (A.R.)
| | - Meiying Liang
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland; (M.L.); (O.R.); (D.S.); (J.C.); (V.N.)
- CRANN and Amber, Trinity College Dublin, Dublin 2, Ireland
| | - Oskar Ronan
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland; (M.L.); (O.R.); (D.S.); (J.C.); (V.N.)
- CRANN and Amber, Trinity College Dublin, Dublin 2, Ireland
| | - Dahnan Spurling
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland; (M.L.); (O.R.); (D.S.); (J.C.); (V.N.)
- CRANN and Amber, Trinity College Dublin, Dublin 2, Ireland
| | - João Coelho
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland; (M.L.); (O.R.); (D.S.); (J.C.); (V.N.)
- CRANN and Amber, Trinity College Dublin, Dublin 2, Ireland
- CENIMAT|i3N, Departamento de Ciência de Materiais, Faculdade de Ciências e Tecnologia Universidade NOVA de Lisboa and CEMOP/UNINOVA, Campus da Caparica, 2829-516 Caparica, Portugal
| | - Valeria Nicolosi
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland; (M.L.); (O.R.); (D.S.); (J.C.); (V.N.)
- CRANN and Amber, Trinity College Dublin, Dublin 2, Ireland
| | - Silvia Colella
- CNR NANOTEC, c/o Department of Chemistry, Institute of Nanotechnology, University of Bari ‘Aldo Moro’, Via Orabona 4, 70126 Bari, Italy;
| | - Giuseppe Gigli
- Dipartimento di Matematica e Fisica “E. De Giorgi”, Campus Ecotekne, Università del Salento, Via Arnesano, 73100 Lecce, Italy; (N.T.); (G.B.); (G.G.)
- CNR NANOTEC, c/o Campus Ecotekne, Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy; (S.C.); (A.R.)
| | - Andrea Listorti
- CNR NANOTEC, c/o Campus Ecotekne, Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy; (S.C.); (A.R.)
- Department of Chemistry, University of Bari “Aldo Moro”, Via Orabona 4, 70126 Bari, Italy
- Correspondence:
| | - Aurora Rizzo
- CNR NANOTEC, c/o Campus Ecotekne, Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy; (S.C.); (A.R.)
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Sanni AM, Rury AS. Kinetic Molecular Cationic Control of Defect-Induced Broadband Light Emission in 2D Hybrid Lead Iodide Perovskites. J Phys Chem Lett 2021; 12:101-110. [PMID: 33306376 DOI: 10.1021/acs.jpclett.0c03359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this study, we examine the effects of changing organic cation concentrations on the efficiency and photophysical implications of exciton trapping in two-dimensional hybrid lead iodide self-assembled quantum wells (SAQWs). We show that increasing the concentration of alkyl and aryl ammonium cations causes the formation of SAQWs at a liquid-liquid interface to possess intense, broadband subgap photoluminescence (PL) spectra. Electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopic studies suggest that materials formed under these cation concentrations possess morphologies consistent with inhibited crystallization kinetics but exhibit qualitatively similar bulk chemical bonding to nonluminescent materials stabilized in the same structure from precursor solutions containing lower cation concentrations. Temperature- and power-dependent PL spectra suggest that the broadband subgap light emission stems from excitons self-trapped at defect sites, which we assign as edge-like, collective I vacancies using a simple model of the chemical equilibrium driving material self-assembly. These results suggest that changes to the availability of molecular cations can suitably control the light emission properties of self-assembled hybrid organic-inorganic materials in ways central to their applicability in lighting technologies.
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Affiliation(s)
- Adedayo M Sanni
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
| | - Aaron S Rury
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
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Dennis E, Kundu S, Thrithamarassery Gangadharan D, Huang J, Burlakov VM, Richtsmeier D, Bazalova-Carter M, Leitch DC, Saidaminov MI. High length-to-width aspect ratio lead bromide microwires via perovskite-induced local concentration gradient for X-ray detection. CrystEngComm 2021. [DOI: 10.1039/d1ce00015b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Well-oriented PbBr2 microwires with a length-to-width ratio of up to 5000 were grown using a concentration gradient in co-crystallization with perovskite. Planar-integrated microwires showed a response to X-ray photons.
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Affiliation(s)
- Emma Dennis
- Department of Chemistry
- University of Victoria
- Victoria
- Canada
| | - Soumya Kundu
- Department of Chemistry
- University of Victoria
- Victoria
- Canada
| | | | - Jingjun Huang
- Department of Chemistry
- University of Victoria
- Victoria
- Canada
| | | | - Devon Richtsmeier
- Department of Physics and Astronomy
- University of Victoria
- Victoria
- Canada
| | | | | | - Makhsud I. Saidaminov
- Department of Chemistry
- University of Victoria
- Victoria
- Canada
- Department of Electrical & Computer Engineering
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Safari Z, Zarandi MB, Giuri A, Bisconti F, Carallo S, Listorti A, Esposito Corcione C, Nateghi MR, Rizzo A, Colella S. Optimizing the Interface between Hole Transporting Material and Nanocomposite for Highly Efficient Perovskite Solar Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1627. [PMID: 31744047 PMCID: PMC6915573 DOI: 10.3390/nano9111627] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/04/2019] [Accepted: 11/13/2019] [Indexed: 11/18/2022]
Abstract
The performances of organometallic halide perovskite-based solar cells severely depend on the device architecture and the interface between each layer included in the device stack. In particular, the interface between the charge transporting layer and the perovskite film is crucial, since it represents both the substrate where the perovskite polycrystalline film grows, thus directly influencing the active layer morphology, and an important site for electrical charge extraction and/or recombination. Here, we focus on engineering the interface between a perovskite-polymer nanocomposite, recently developed by our group, and different commonly employed polymeric hole transporters, namely PEDOT: PSS [poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)], PEDOT, PTAA [poly(bis 4-phenyl}{2,4,6-trimethylphenyl}amine)], Poly-TPD [Poly(N,N'-bis(4-butylphenyl)-N,N'-bis(phenyl)-benzidine] Poly-TPD, in inverted planar perovskite solar cell architecture. The results show that when Poly-TPD is used as the hole transfer material, perovskite film morphology improved, suggesting an improvement in the interface between Poly-TPD and perovskite active layer. We additionally investigate the effect of the Molecular Weight (MW) of Poly-TPD on the performance of perovskite solar cells. By increasing the MW, the photovoltaic performances of the cells are enhanced, reaching power conversion efficiency as high as 16.3%.
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Affiliation(s)
- Zeinab Safari
- Department of Physics, Yazd University, P.O. Box 89195-741, Yazd 89195-741, Iran; (Z.S.); (M.B.Z.)
| | - Mahmood Borhani Zarandi
- Department of Physics, Yazd University, P.O. Box 89195-741, Yazd 89195-741, Iran; (Z.S.); (M.B.Z.)
| | - Antonella Giuri
- Dipartimento di Ingegneria dell’Innovazione, Università del Salento, via per Monteroni, km 1, 73100 Lecce, Italy;
| | - Francesco Bisconti
- Istituto di Nanotecnologia CNR-Nanotec, Polo di Nanotecnologia c/o Campus Ecotekne, via Monteroni, 73100 Lecce, Italy; (F.B.); (S.C.); (A.L.); (A.R.); (S.C.)
| | - Sonia Carallo
- Istituto di Nanotecnologia CNR-Nanotec, Polo di Nanotecnologia c/o Campus Ecotekne, via Monteroni, 73100 Lecce, Italy; (F.B.); (S.C.); (A.L.); (A.R.); (S.C.)
| | - Andrea Listorti
- Istituto di Nanotecnologia CNR-Nanotec, Polo di Nanotecnologia c/o Campus Ecotekne, via Monteroni, 73100 Lecce, Italy; (F.B.); (S.C.); (A.L.); (A.R.); (S.C.)
| | - Carola Esposito Corcione
- Dipartimento di Ingegneria dell’Innovazione, Università del Salento, via per Monteroni, km 1, 73100 Lecce, Italy;
| | - Mohamad Reza Nateghi
- Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd 8915 813135, Iran;
| | - Aurora Rizzo
- Istituto di Nanotecnologia CNR-Nanotec, Polo di Nanotecnologia c/o Campus Ecotekne, via Monteroni, 73100 Lecce, Italy; (F.B.); (S.C.); (A.L.); (A.R.); (S.C.)
| | - Silvia Colella
- Istituto di Nanotecnologia CNR-Nanotec, Polo di Nanotecnologia c/o Campus Ecotekne, via Monteroni, 73100 Lecce, Italy; (F.B.); (S.C.); (A.L.); (A.R.); (S.C.)
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Li B, Chen Z, Yao H, Guan X, Yu Z, Halis Isikgor F, Coskun H, Xu QH, Ouyang J. Enhancement in the photovoltaic performance of planar perovskite solar cells by perovskite cluster engineering using an interfacial energy modifier. NANOSCALE 2019; 11:3216-3221. [PMID: 30706930 DOI: 10.1039/c8nr10125f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The grain size and quality of hybrid organic-inorganic perovskite (HOIP) films greatly affect the performance of perovskite solar cells (PSCs). However, dripping an anti-solvent during the spin coating process induces rapid nucleation and reduces the grain size. Here, a facile method is developed to engineer clusters in precursor solution and obtain high-quality perovskite films with an enlarged grain size. A cluster interfacial modifier, chlorobenzene (CB), is added to precursor solution. The modifier increases the interfacial energy between the precursor cluster and the solvent. The increased interfacial energy suppresses the nucleation and gives rise to HOIP films with large grains and high crystallinity. The efficiency of PSCs based on this method is greatly improved from 17.55% to 19.5%.
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Affiliation(s)
- Bichen Li
- Department of Materials Science and Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore117574.
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Seok SI, Grätzel M, Park NG. Methodologies toward Highly Efficient Perovskite Solar Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1704177. [PMID: 29430835 DOI: 10.1002/smll.201704177] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 12/22/2017] [Indexed: 06/08/2023]
Abstract
A perovskite solar cell (PSC) employing an organic-inorganic lead halide perovskite light harvester, seeded in 2009 with power conversion efficiency (PCE) of 3.8% and grown in 2011 with PCE of 6.5% in dye-sensitized solar cell structure, has received great attention since the breakthrough reports ≈10% efficient solid-state PCSs demonstrating 500 h stability. Developments of device layout and high-quality perovskite film eventually lead to a PCE over 22%. As of October 31, 2017, the highest PCE of 22.7% is listed in an efficiency chart provided by NREL. In this Review, the methodologies to obtain highly efficient PSCs are described in detail. In order to achieve a PCE of over 20% reproducibly, key technologies are disclosed from the viewpoint of precursor solution chemistry, processing for defect-free perovskite films, and passivation of grain boundaries. Understanding chemical species in precursor solution, crystal growth kinetics, light-matter interaction, and controlling defects is expected to give important insights into not only reproducible production of high PCE over 20% but also further enhancement of the PCE of PCSs.
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Affiliation(s)
- Sang Il Seok
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, South Korea
| | - Michael Grätzel
- Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering École Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015, Lausanne, Switzerland
| | - Nam-Gyu Park
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 440-746, South Korea
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Masi S, Mastria R, Scarfiello R, Carallo S, Nobile C, Gambino S, Sibillano T, Giannini C, Colella S, Listorti A, Cozzoli PD, Rizzo A. Room-temperature processed films of colloidal carved rod-shaped nanocrystals of reduced tungsten oxide as interlayers for perovskite solar cells. Phys Chem Chem Phys 2018; 20:11396-11404. [PMID: 29645032 DOI: 10.1039/c8cp00645h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thanks to their high stability, good optoelectronic and extraordinary electrochromic properties, tungsten oxides are among the most valuable yet underexploited materials for energy conversion applications. Herein, colloidal one-dimensional carved nanocrystals of reduced tungsten trioxide (WO3-x) are successfully integrated, for the first time, as a hole-transporting layer (HTL) into CH3NH3PbI3 perovskite solar cells with a planar inverted device architecture. Importantly, the use of such preformed nanocrystals guarantees the facile solution-cast-only deposition of a homogeneous WO3-x thin film at room temperature, allowing achievement of the highest power conversion efficiency ever reported for perovskite solar cells incorporating raw and un-doped tungsten oxide based HTL.
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Affiliation(s)
- Sofia Masi
- CNR NANOTEC - Institute of Nanotechnology, Polo di Nanotecnologia, c/o Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy
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Masi S, Aiello F, Listorti A, Balzano F, Altamura D, Giannini C, Caliandro R, Uccello-Barretta G, Rizzo A, Colella S. Connecting the solution chemistry of PbI 2 and MAI: a cyclodextrin-based supramolecular approach to the formation of hybrid halide perovskites. Chem Sci 2018; 9:3200-3208. [PMID: 29732103 PMCID: PMC5916222 DOI: 10.1039/c7sc05095j] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 02/12/2018] [Indexed: 11/29/2022] Open
Abstract
Cyclodextrin macrocycles are able to modify and control the solvation equilibria of hybrid perovskite components in solution by establishing supramolecular interactions.
The evolution from solvated precursors to hybrid halide perovskite films dictates most of the photophysical and optoelectronic properties of the final polycrystalline material. Specifically, the complex equilibria and the importantly different solubilities of lead iodide (PbI2) and methylammonium iodide (MAI) induce inhomogeneous crystal growth, often leading to a defect dense film showing non-optimal optoelectronic properties and intrinsic instability. Here, we explore a supramolecular approach based on the use of cyclodextrins (CDs) to modify the underlying solution chemistry. The peculiar phenomenon demonstrated is a tunable complexation between different CDs and MA+ cations concurrent to an out of cage PbI2 intercalation, representing the first report of a connection between the solvation equilibria of the two perovskite precursors. The optimal conditions in terms of CD cavity size and polarity translate to a neat enhancement of PbI2 solubility in the reaction media, leading to an equilibration of the availability of the precursors in solution. The macroscopic result of this is an improved nucleation process, leading to a perovskite material with higher crystallinity, better optical properties and improved moisture resistance. Remarkably, the use of CDs presents a great potential for a wide range of device-related applications, as well as for the development of tailored composite materials.
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Affiliation(s)
- Sofia Masi
- Istituto di Nanotecnologia CNR-Nanotec , Distretto Tecnologico via Arnesano 16 , 73100 Lecce , Italy . ; .,Dipartimento di Matematica e Fisica "E. De Giorgi" , Università del Salento , Via per Arnesano , 73100 Lecce , Italy
| | - Federica Aiello
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Moruzzi 13 , 56124 Pisa , Italy
| | - Andrea Listorti
- Istituto di Nanotecnologia CNR-Nanotec , Distretto Tecnologico via Arnesano 16 , 73100 Lecce , Italy . ; .,Dipartimento di Matematica e Fisica "E. De Giorgi" , Università del Salento , Via per Arnesano , 73100 Lecce , Italy
| | - Federica Balzano
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Moruzzi 13 , 56124 Pisa , Italy
| | - Davide Altamura
- Istituto di Cristallografia , CNR-IC , Via Amendola 122/O , 70126 Bari , Italy
| | - Cinzia Giannini
- Istituto di Cristallografia , CNR-IC , Via Amendola 122/O , 70126 Bari , Italy
| | - Rocco Caliandro
- Istituto di Cristallografia , CNR-IC , Via Amendola 122/O , 70126 Bari , Italy
| | - Gloria Uccello-Barretta
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Moruzzi 13 , 56124 Pisa , Italy
| | - Aurora Rizzo
- Istituto di Nanotecnologia CNR-Nanotec , Distretto Tecnologico via Arnesano 16 , 73100 Lecce , Italy . ;
| | - Silvia Colella
- Istituto di Nanotecnologia CNR-Nanotec , Distretto Tecnologico via Arnesano 16 , 73100 Lecce , Italy . ; .,Dipartimento di Matematica e Fisica "E. De Giorgi" , Università del Salento , Via per Arnesano , 73100 Lecce , Italy
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11
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Zheng H, Liu G, Zhu L, Ye J, Zhang X, Alsaedi A, Hayat T, Pan X, Dai S. Enhanced Performance and Stability of Perovskite Solar Cells Using NH 4I Interfacial Modifier. ACS APPLIED MATERIALS & INTERFACES 2017; 9:41006-41013. [PMID: 29077386 DOI: 10.1021/acsami.7b12721] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Despite organic-inorganic hybrid perovskite solar cells have rapid advances in power conversion efficiency in recent years, the serious instability of the device under practical working conditions is the current main challenge for commercialization. In this study, we have successfully inserted NH4I as an interfacial modifier between the TiO2 electron transport layer and perovskite layer. The result shows that it can significantly improve the quality of the perovskite films and electron extraction efficiency between the perovskite and electron transport layer. The devices with NH4I are obtained an improved power conversion efficiency of 18.31% under AM 1.5G illumination (100 mW cm-2). More importantly, the humidity and UV light stability of the devices are greatly improved after adding NH4I layer. The uncoated devices only decrease by less than 15% of its original efficiency during 700-h stability tests in a humidity chamber (with a relative humidity of 80%) and the efficiency almost maintains 70% of its initial value over 20 h under UV light stress tests. This work provides a potential way by interfacial modification to significantly improve photovoltaic performance and stability of perovskite solar cells.
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Affiliation(s)
- Haiying Zheng
- Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei 230031, China
- University of Science and Technology of China , Hefei 230026, China
| | - Guozhen Liu
- Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei 230031, China
- University of Science and Technology of China , Hefei 230026, China
| | - Liangzheng Zhu
- Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei 230031, China
- University of Science and Technology of China , Hefei 230026, China
| | - Jiajiu Ye
- Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei 230031, China
- University of Science and Technology of China , Hefei 230026, China
| | - Xuhui Zhang
- Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei 230031, China
- University of Science and Technology of China , Hefei 230026, China
| | - Ahmed Alsaedi
- NAAM Research Group, Department of Mathematics, Faculty of Science, King Abdulaziz University , Jeddah 21589, Saudi Arabia
| | - Tasawar Hayat
- NAAM Research Group, Department of Mathematics, Faculty of Science, King Abdulaziz University , Jeddah 21589, Saudi Arabia
- Department of Mathematics, Quaid-I-Azam University , Islamabad 44000, Pakistan
| | - Xu Pan
- Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei 230031, China
| | - Songyuan Dai
- Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei 230031, China
- NAAM Research Group, Department of Mathematics, Faculty of Science, King Abdulaziz University , Jeddah 21589, Saudi Arabia
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University , Beijing 102206, China
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