Electrospun Hybrid Perovskite Fibers-Flexible Networks of One-Dimensional Semiconductors for Light-Harvesting Applications

被引：23

作者：

Bohr, Christoph ^{[1
]}

Pfeiffer, Markus ^{[2
]}

Oz, Senol ^{[1
]}

von Toperczer, Florian ^{[2
]}

Lepcha, Ashish ^{[1
]}

Fischer, Thomas ^{[1
]}

Schuetz, Markus ^{[1
]}

Lindfors, Klas ^{[2
]}

Mathur, Sanjay ^{[1
]}

机构：

[1] Univ Cologne, Inst Inorgan Chem, Greinstr 6, D-50939 Cologne, Germany

[2] Univ Cologne, Inst Phys Chem, Luxemburger Str 116, D-50939 Cologne, Germany

来源：

ACS APPLIED MATERIALS & INTERFACES | 2019年 / 11卷 / 28期

关键词：

electrospinning; perovskite; nanofibers; MeNH3PbI3; photovoltaics; SOLAR-CELLS; COMPOSITE; FABRICATION; NANOFIBERS;

D O I：

10.1021/acsami.9b05700

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Thin-film organic inorganic hybrid perovskite (MeNH3PbI3) solar cells have displayed remarkably high photoconversion efficiencies, making their net-shaping as flexible device elements desirable for a number of applications. Simulations show greatly enhanced light absorption in perovskite fibers in comparison to their thin-film counterparts, which demand the processing of hybrid perovskites in the one-dimensional morphology. We report here on the single-step fabrication of MeNH3PbI3 nanofibers on a customized electrospinning process performed under inert conditions. Our results demonstrate reproducible synthesis of electrospun fiber mats in which the fiber dimensions were tailored by adjusting the polymer (PVP) content. Photoluminescence studies on the perovskite fibers revealed a blue shift of the emission peak possibly due to strain or charge confinement effects. The hybrid perovskite nanofibers offer promising applications in flexible and stretchable opto electronics.

引用

页码：25163 / 25169

页数：7

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