Hybrid organic/inorganic perovskite nanoparticles (NPs) have garnered remarkable research attention because of their promising photophysical properties. New and interesting properties emerge after combining perovskite NPs with semiconducting materials. Here, we report the synthesis and investigation of a composite material obtained by mixing CH3NH3PbBr3 nanocrystals with the semiconducting polymer poly(3-hexylthiophene) (P3HT). By the combination of structural techniques and optical and magnetic spectroscopies we observed multiple effects of the perovskite NPs on the P3HT: (i) an enlargement of P3HT crystalline domains, (ii) a strong p-doping of the P3HT, and (iii) an enhancement of interchain order typical of H-aggregates. These observations open a new avenue toward innovative perovskite NP-based applications.
|Original language||English (US)|
|Number of pages||6|
|Journal||The Journal of Physical Chemistry Letters|
|State||Published - Dec 2017|
Bibliographical noteKAUST Repository Item: Exported on 2020-10-01
Acknowledgements: Financial support from Centro Studi di Economia e Tecnica dell’Energia Giorgio Levi Cases of the University of Padova is gratefully acknowledged (project OPERA). G.G. and F.C. thank the MAECI (Ministero degli Affari Esteri e della Cooperazione Internazionale) for the support through the bilateral Italy–China GRAPE-MAT project. Finally, we thank Prof. Osman Bakr for fruitful discussion and suggestions on our results.