[{"OA_type":"closed access","keyword":["NMR","CsPbBr3","absorption coefficient","surface chemistry"],"page":"2071 - 2081","author":[{"last_name":"De Roo","first_name":"Jonathan","full_name":"De Roo, Jonathan"},{"full_name":"Ibáñez, Maria","orcid":"0000-0001-5013-2843","last_name":"Ibáñez","id":"43C61214-F248-11E8-B48F-1D18A9856A87","first_name":"Maria"},{"full_name":"Geiregat, Pieter","first_name":"Pieter","last_name":"Geiregat"},{"last_name":"Nedelcu","first_name":"Georgian","full_name":"Nedelcu, Georgian"},{"full_name":"Walravens, Willem","first_name":"Willem","last_name":"Walravens"},{"first_name":"Jorick","last_name":"Maes","full_name":"Maes, Jorick"},{"last_name":"Martins","first_name":"Jose","full_name":"Martins, Jose"},{"last_name":"Van Driessche","first_name":"Isabel","full_name":"Van Driessche, Isabel"},{"first_name":"Maksym","last_name":"Kovalenko","full_name":"Kovalenko, Maksym"},{"full_name":"Hens, Zeger","first_name":"Zeger","last_name":"Hens"}],"publication_status":"published","pmid":1,"date_published":"2016-02-23T00:00:00Z","doi":"10.1021/acsnano.5b06295","title":"Highly dynamic ligand binding and light absorption coefficient of cesium lead bromide perovskite nanocrystals","language":[{"iso":"eng"}],"publist_id":"7464","extern":"1","oa_version":"None","status":"public","citation":{"ieee":"J. De Roo <i>et al.</i>, “Highly dynamic ligand binding and light absorption coefficient of cesium lead bromide perovskite nanocrystals,” <i>Nano</i>, vol. 10, no. 2. American Chemical Society, pp. 2071–2081, 2016.","ista":"De Roo J, Ibáñez M, Geiregat P, Nedelcu G, Walravens W, Maes J, Martins J, Van Driessche I, Kovalenko M, Hens Z. 2016. Highly dynamic ligand binding and light absorption coefficient of cesium lead bromide perovskite nanocrystals. Nano. 10(2), 2071–2081.","ama":"De Roo J, Ibáñez M, Geiregat P, et al. Highly dynamic ligand binding and light absorption coefficient of cesium lead bromide perovskite nanocrystals. <i>Nano</i>. 2016;10(2):2071-2081. doi:<a href=\"https://doi.org/10.1021/acsnano.5b06295\">10.1021/acsnano.5b06295</a>","mla":"De Roo, Jonathan, et al. “Highly Dynamic Ligand Binding and Light Absorption Coefficient of Cesium Lead Bromide Perovskite Nanocrystals.” <i>Nano</i>, vol. 10, no. 2, American Chemical Society, 2016, pp. 2071–81, doi:<a href=\"https://doi.org/10.1021/acsnano.5b06295\">10.1021/acsnano.5b06295</a>.","short":"J. De Roo, M. Ibáñez, P. Geiregat, G. Nedelcu, W. Walravens, J. Maes, J. Martins, I. Van Driessche, M. Kovalenko, Z. Hens, Nano 10 (2016) 2071–2081.","chicago":"De Roo, Jonathan, Maria Ibáñez, Pieter Geiregat, Georgian Nedelcu, Willem Walravens, Jorick Maes, Jose Martins, Isabel Van Driessche, Maksym Kovalenko, and Zeger Hens. “Highly Dynamic Ligand Binding and Light Absorption Coefficient of Cesium Lead Bromide Perovskite Nanocrystals.” <i>Nano</i>. American Chemical Society, 2016. <a href=\"https://doi.org/10.1021/acsnano.5b06295\">https://doi.org/10.1021/acsnano.5b06295</a>.","apa":"De Roo, J., Ibáñez, M., Geiregat, P., Nedelcu, G., Walravens, W., Maes, J., … Hens, Z. (2016). Highly dynamic ligand binding and light absorption coefficient of cesium lead bromide perovskite nanocrystals. <i>Nano</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acsnano.5b06295\">https://doi.org/10.1021/acsnano.5b06295</a>"},"_id":"363","date_updated":"2026-05-13T14:05:15Z","quality_controlled":"1","date_created":"2018-12-11T11:46:02Z","intvolume":"        10","year":"2016","fulldoi":"https://doi.org/10.1021/acsnano.5b06295","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","issue":"2","article_type":"original","type":"journal_article","month":"02","publication":"Nano","external_id":{"pmid":["26786064"]},"article_processing_charge":"No","publisher":"American Chemical Society","volume":10,"day":"23","scopus_import":"1","abstract":[{"text":"Lead halide perovskite materials have attracted significant attention in the context of photovoltaics and other optoelectronic applications, and recently, research efforts have been directed to nanostructured lead halide perovskites. Collodial nanocrystals (NCs) of cesium lead halides (CsPbX3, X = Cl, Br, I) exhibit bright photoluminescence, with emission tunable over the entire visible spectral region. However, previous studies on CsPbX3 NCs did not address key aspects of their chemistry and photophysics such as surface chemistry and quantitative light absorption. Here, we elaborate on the synthesis of CsPbBr3 NCs and their surface chemistry. In addition, the intrinsic absorption coefficient was determined experimentally by combining elemental analysis with accurate optical absorption measurements. 1H solution nuclear magnetic resonance spectroscopy was used to characterize sample purity, elucidate the surface chemistry, and evaluate the influence of purification methods on the surface composition. We find that ligand binding to the NC surface is highly dynamic, and therefore, ligands are easily lost during the isolation and purification procedures. However, when a small amount of both oleic acid and oleylamine is added, the NCs can be purified, maintaining optical, colloidal, and material integrity. In addition, we find that a high amine content in the ligand shell increases the quantum yield due to the improved binding of the carboxylic acid.","lang":"eng"}],"publication_identifier":{"eissn":["1936-086X"],"issn":["1936-0851"]}},{"oa_version":"Accepted Version","language":[{"iso":"eng"}],"extern":"1","publist_id":"7460","citation":{"short":"M. Meyn, M. Perálvarez, A. Heuer Jungemann, W. Hertog, M. Ibáñez, R. Nafria, A. Genç, J. Arbiol, M. Kovalenko, J. Carreras, A. Cabot, A. Kanaras, Applied Materials and Interfaces 8 (2016) 19579–19586.","apa":"Meyn, M., Perálvarez, M., Heuer Jungemann, A., Hertog, W., Ibáñez, M., Nafria, R., … Kanaras, A. (2016). Polymer enhanced stability of inorganic perovskite nanocrystals and their application in color conversion LEDs. <i>Applied Materials and Interfaces</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acsami.6b02529\">https://doi.org/10.1021/acsami.6b02529</a>","chicago":"Meyn, Michaela, Mariano Perálvarez, Amelie Heuer Jungemann, Wim Hertog, Maria Ibáñez, Raquel Nafria, Aziz Genç, et al. “Polymer Enhanced Stability of Inorganic Perovskite Nanocrystals and Their Application in Color Conversion LEDs.” <i>Applied Materials and Interfaces</i>. American Chemical Society, 2016. <a href=\"https://doi.org/10.1021/acsami.6b02529\">https://doi.org/10.1021/acsami.6b02529</a>.","ieee":"M. Meyn <i>et al.</i>, “Polymer enhanced stability of inorganic perovskite nanocrystals and their application in color conversion LEDs,” <i>Applied Materials and Interfaces</i>, vol. 8, no. 30. American Chemical Society, pp. 19579–19586, 2016.","ama":"Meyn M, Perálvarez M, Heuer Jungemann A, et al. Polymer enhanced stability of inorganic perovskite nanocrystals and their application in color conversion LEDs. <i>Applied Materials and Interfaces</i>. 2016;8(30):19579-19586. doi:<a href=\"https://doi.org/10.1021/acsami.6b02529\">10.1021/acsami.6b02529</a>","ista":"Meyn M, Perálvarez M, Heuer Jungemann A, Hertog W, Ibáñez M, Nafria R, Genç A, Arbiol J, Kovalenko M, Carreras J, Cabot A, Kanaras A. 2016. Polymer enhanced stability of inorganic perovskite nanocrystals and their application in color conversion LEDs. Applied Materials and Interfaces. 8(30), 19579–19586.","mla":"Meyn, Michaela, et al. “Polymer Enhanced Stability of Inorganic Perovskite Nanocrystals and Their Application in Color Conversion LEDs.” <i>Applied Materials and Interfaces</i>, vol. 8, no. 30, American Chemical Society, 2016, pp. 19579–86, doi:<a href=\"https://doi.org/10.1021/acsami.6b02529\">10.1021/acsami.6b02529</a>."},"main_file_link":[{"open_access":"1","url":"https://eprints.soton.ac.uk/398581/"}],"status":"public","date_created":"2018-12-11T11:46:03Z","intvolume":"         8","_id":"366","date_updated":"2026-05-13T13:45:04Z","quality_controlled":"1","OA_type":"green","page":"19579 - 19586","author":[{"first_name":"Michaela","last_name":"Meyn","full_name":"Meyn, Michaela"},{"full_name":"Perálvarez, Mariano","last_name":"Perálvarez","first_name":"Mariano"},{"first_name":"Amelie","last_name":"Heuer Jungemann","full_name":"Heuer Jungemann, Amelie"},{"first_name":"Wim","last_name":"Hertog","full_name":"Hertog, Wim"},{"full_name":"Ibanez Sabate, Maria","last_name":"Ibanez Sabate","orcid":"0000-0001-5013-2843","id":"43C61214-F248-11E8-B48F-1D18A9856A87","first_name":"Maria"},{"full_name":"Nafria, Raquel","first_name":"Raquel","last_name":"Nafria"},{"full_name":"Genç, Aziz","last_name":"Genç","first_name":"Aziz"},{"last_name":"Arbiol","first_name":"Jordi","full_name":"Arbiol, Jordi"},{"full_name":"Kovalenko, Maksym","first_name":"Maksym","last_name":"Kovalenko"},{"first_name":"Josep","last_name":"Carreras","full_name":"Carreras, Josep"},{"first_name":"Andreu","last_name":"Cabot","full_name":"Cabot, Andreu"},{"first_name":"Antonios","last_name":"Kanaras","full_name":"Kanaras, Antonios"}],"pmid":1,"publication_status":"published","date_published":"2016-07-25T00:00:00Z","keyword":["inorgani","perovskite nanocrystals","CsPbBr3","LED","color conversion","poly(maleic anhydride-alt-1-octadecene)"],"doi":"10.1021/acsami.6b02529","title":"Polymer enhanced stability of inorganic perovskite nanocrystals and their application in color conversion LEDs","month":"07","article_processing_charge":"No","oa":1,"publication":"Applied Materials and Interfaces","OA_place":"repository","external_id":{"pmid":["27454750"]},"acknowledgement":"This work was supported by the European Regional Development Funds, the Framework 7 program under project UNION (FP7-NMP-2012-310250) and HI-LED (FP7-ICT-2013-11- 619912), as well as the Spanish MINECO Projects BOOSTER (ENE2013-46624-C4-3-R) and AMALIE (TEC2012-38901- C02-01). M.M. thanks the Spanish MINECO for financial support through the Juan de la Cierva-formacion program. A.G. and J.A. acknowledge funding from Generalitat de Catalunya 2014 SGR 1638 and the Spanish MINECO MAT2014-51480- ERC (e-ATOM) and Severo Ochoa Excellence Program. We would like to thank Pablo Guardia for fruitful discussions.","publisher":"American Chemical Society","abstract":[{"text":"Cesium lead halide (CsPbX3, X = Cl, Br, I) nanocrystals (NCs) offer exceptional optical properties for several potential applications but their implementation is hindered by a low chemical and structural stability and limited processability. In the present work, we developed a new method to efficiently coat CsPbX3 NCs, which resulted in their increased chemical and optical stability as well as processability. The method is based on the incorporation of poly(maleic anhydride-alt-1-octadecene) (PMA) into the synthesis of the perovskite NCs. The presence of PMA in the ligand shell stabilizes the NCs by tightening the ligand binding, limiting in this way the NC surface interaction with the surrounding media. We further show that these NCs can be embedded in self-standing silicone/glass plates as down-conversion filters for the fabrication of monochromatic green and white light emitting diodes (LEDs) with narrow bandwidths and appealing color characteristics.","lang":"eng"}],"scopus_import":"1","publication_identifier":{"issn":["1944-8244"],"eissn":["1944-8252"]},"volume":8,"day":"25","year":"2016","fulldoi":"https://doi.org/10.1021/acsami.6b02529","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","issue":"30","article_type":"original","type":"journal_article"}]