Ying-liang LIU, Han LI, Shen-gang XU, Shao-kui CAO. Effective Control on Perovskite Morphology with Carbochain Polyvinylamine Backbone[J]. Polymer Bulletin, 2018,31(2):45-52.
Polyvinylamine is applied in this paper to prepare the perovskite film as organic ammonium source. In this case
the perovskite crystal grains are linked together by the polymeric carbochain backbone through the A-site occupation on the surface of perovskite crystal grains via polymeric primary amines. The results of
1
H-NMR
SEM and XRD indicated that this kind of microscopic structure is able precisely to regulate the perovskite morphology due to the direct polymeric participation in the growing process of perovskite crystals
which will effectively improve the long-term stability of perovskite solar cells.