PAMAM dendrimer in a phosphate solution: An atomistic simulation study

Song, Xiang-yan; Chen, Kang; Tian, Wen‐de

doi:10.1016/j.polymer.2020.122881

Cited by 2 publications

(2 citation statements)

References 42 publications

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“…These phosphate ions have been shown to form hydrogen bonds with dendrimer amines, as reported for PAMAM dendrimers. 60,61 These results show that Taylor dispersion analysis provides a suitable orthogonal sizing technique to differential light scattering techniques for a range of dendrimer generations. This is important for their successful pharmaceutical development.…”

Section: Resultsmentioning

confidence: 88%

Investigating the properties of l-lysine dendrimers through physico-chemical characterisation techniques and atomistic molecular dynamics simulations

et al. 2022

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Section: Resultsmentioning

confidence: 88%

Investigating the properties of l-lysine dendrimers through physico-chemical characterisation techniques and atomistic molecular dynamics simulations

et al. 2022

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“…In this work, the polyamide-amine dendrimers (PAMAM) are firstly protonated to attach the functional ammonium groups (NH 3 + ) to the macromolecular periphery, [61][62][63][64] which strengthens the impact of PAMAM in cross-linking the perovskite grains. Then, the NH 3 + -functionalized PAMAM dendrimers (NH 3 + -PAMAM) are introduced into the precursor solution of MAPbI 3 as a dendritic template to prepare the boundary-suppressed perovskite layer.…”

Section: Introductionmentioning

confidence: 99%

NH3+-Functionalized PAMAM Dendrimers Enhancing Power Conversion Efficiency and Stability of Perovskite Solar Cells

Fan

Zhou

et al. 2021

J. Electron. Mater.

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The introduction of polymer additives provides a simple effective method to modify perovskite grain boundaries to improve power conversion efficiency (PCE) and stability of perovskite solar cells (PSCs). In this work, the high-quality methylammonium lead triiodide (MAPbI 3 ) perovskite film is prepared by adding the protonated polyamide-amine dendrimer (NH 3 + -PAMAM) to the perovskite precursor solution to regulate the crystalline growth process. The cross-linked perovskite grain structure induced by dendritic NH 3 + -functionalized PAMAM macromolecules results in the formation of compact and pinhole-free perovskite film owing to the suppression of perovskite gain boundaries. Finally, the unsealed NH 3 + -PAMAM modified PSC device achieves the highest PCE value of 16.03%, representing an increase of 48% compared with the control PSC device. Also, the unencapsulated NH 3 + -PAMAM-modified PSC device retained 75% of initial PCE value after being exposed to an ambient environment for 20 days, which is obviously higher than 10% for the control device. The improvements of perovskite morphology and photovoltaic performance are attributed to the modification of NH 3 + -PAMAM dendrimers.Wentao Fan and Yongqiang Du have contributed equally to this work.

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PAMAM dendrimer in a phosphate solution: An atomistic simulation study

Cited by 2 publications

References 42 publications

Investigating the properties of l-lysine dendrimers through physico-chemical characterisation techniques and atomistic molecular dynamics simulations

Investigating the properties of l-lysine dendrimers through physico-chemical characterisation techniques and atomistic molecular dynamics simulations

NH3+-Functionalized PAMAM Dendrimers Enhancing Power Conversion Efficiency and Stability of Perovskite Solar Cells

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