% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Chowdhury:627901,
      author       = {Chowdhury, Subhadip and Mukhopadhyay, Mrinmay Kumar and
                      Sanyal, Milan and Bhunia, Satyaban and Satpati, Biswarup and
                      Giri, Rajendra P and Bharatiya, B. and Shen, Chen and
                      Murphy, Bridget M.},
      title        = {{I}nvestigation on the formation of two dimensional
                      perovskite nanostructures at the water surface through self
                      initiated reaction},
      journal      = {Scientific reports},
      volume       = {15},
      issn         = {2045-2322},
      address      = {[London]},
      publisher    = {Springer Nature},
      reportid     = {PUBDB-2025-01676},
      pages        = {6216},
      year         = {2025},
      note         = {BMBF/05K16FK1/05K19FK2/ 05K21FK3 research grants for
                      financing the LISA instrument},
      abstract     = {The emerging class of hybrid organic-inorganic perovskites
                      (HOIPs) has exhibited fascinating properties for a wide
                      range of technological applications. With halide ions, HOIPs
                      have provided novel optoelectronic devices including
                      efficient solar cells and with pseudohalide anions-like
                      formate (HCOO$^−$), enigmatic electromagnetic properties
                      have been obtained in HOIPs. Large-scale synthesis of such
                      2D HOIP films is of immense importance for the advancement
                      of its application as solar materials. We have shown using
                      in-situ X-ray measurements that the Langmuir monolayer of
                      perovskite can be formed at the air-water interface by
                      spreading stearic acid molecules on the water subphase
                      having (C$_4$H$_9$NH$_3$)$_2$PbBr$_4$ molecules. The 2D lead
                      formate perovskite films are formed at the air-water
                      interface through a self-initiated reaction and the in-situ
                      X-ray scattering and ex-situ Raman spectroscopy measurements
                      revealed this reaction process. The spreading of lipid
                      molecules having positive and negative head-group charges as
                      surfactants over the water surface shows that the formation
                      of perovskite nanofilms at the air-water interface
                      specifically requires the presence of HCOO$^−$ head-group
                      of stearic acid. In this room temperature interfacial
                      reaction, formate anions come from the stearic acid
                      monolayer present on the water surface and completely
                      replace bromines in the perovskite present in water subphase
                      to form (BA)$_2$Pb(HCOO)$_4$ at the air-water interface. Our
                      results show an easy route for large-scale synthesis of 2D
                      pseudohalide perovskites.},
      cin          = {FS DOOR-User / FS-PETRA-D},
      ddc          = {600},
      cid          = {$I:(DE-H253)FS_DOOR-User-20241023$ /
                      I:(DE-H253)FS-PETRA-D-20210408},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
                      INDIA-DESY - INDIA-DESY Collaboration
                      $(2020_Join2-INDIA-DESY)$},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
                      $G:(DE-HGF)2020_Join2-INDIA-DESY$},
      experiment   = {EXP:(DE-H253)P-P08-20150101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {39979302},
      UT           = {WOS:001428038400045},
      doi          = {10.1038/s41598-024-78259-9},
      url          = {https://bib-pubdb1.desy.de/record/627901},
}