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@ARTICLE{BuyanArivjikh:639636,
      author       = {Buyan-Arivjikh, Altantulga and Fricker, Jascha and Baier,
                      Thomas and Ci, Xiaojing and Li, Lixing and Gaur, Deepika and
                      Polavarapu, Lakshminarayana and Schwartzkopf, Matthias and
                      Vayalil, Sarathlal Koyilot and Müller-Buschbaum, Peter},
      title        = {{C}s{P}b{B}r$_3$ {N}anocrystals as {B}ottom {I}nterface
                      {N}ucleation {S}eeds for {P}rinting {O}riented {FAP}b{I}$_3$
                      {T}hin {F}ilms: {A}n {I}n {S}itu {S}tudy},
      journal      = {Small},
      volume       = {21},
      number       = {39},
      issn         = {1613-6810},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {PUBDB-2025-04593},
      pages        = {e05895},
      year         = {2025},
      abstract     = {The exceptional optoelectronic properties of lead halide
                      perovskites are highly sensitive to processing conditions,
                      as uncontrolled crystallization driven by random nucleation
                      often results in defect-rich active layers that impair
                      device performance. Achieving controlled and oriented
                      crystallization in printed films remains a major challenge.
                      To address this, we introduce a pre-deposited CsPbBr3
                      nanocrystal seed layer at the bottom interface to guide
                      crystallization and suppress defect formation. This strategy
                      is evaluated via an in situ study on FAPbI3, offering
                      mechanistic insights into the influence of seeding on film
                      growth and optoelectronic quality. Using in situ
                      grazing-incidence wide-angle X-ray scattering,
                      transmission-mode UV–vis absorption, and photoluminescence
                      spectroscopy, phase evolution and seed-mediated growth
                      kinetics are tracked. Seeding accelerates the transition
                      from the photoinactive δ-phase to the photoactive α-phase,
                      yielding a crystallization rate constant over six times
                      higher than in unseeded films. Moreover, the seed layer
                      governs the crystallographic orientation of the resulting
                      perovskite film, leading to improved optical absorption and
                      reduced defect density.},
      cin          = {FS-PETRA-D / DOOR ; HAS-User},
      ddc          = {620},
      cid          = {I:(DE-H253)FS-PETRA-D-20210408 /
                      I:(DE-H253)HAS-User-20120731},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
                      DFG project G:(GEPRIS)390776260 - EXC 2089: e-conversion
                      (390776260)},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
                      G:(GEPRIS)390776260},
      experiment   = {EXP:(DE-H253)P-P03-20150101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:40831314},
      doi          = {10.1002/smll.202505895},
      url          = {https://bib-pubdb1.desy.de/record/639636},
}