Issue 1, 2019

MAPbI3 microneedle-arrays for perovskite photovoltaic application

Abstract

Methyl-ammonium lead iodide perovskite (MAPbI3) was synthesized in the form of micro-needles via a hydrothermal route at a low temperature of 100 °C in a two-step procedure for the first time. The results exhibit that the amount of the surfactant is crucial for the synthesis of the MAPbI3 nanostructures with well-controlled morphologies. In contrast to bulk MAPbI3, the one-dimensional (1-D) micro-needle perovskite with a diameter of 200 nm showed an improved hole injection from the perovskite to the hole transporting layer (HTL), providing a unique platform at the perovskite/HTL interface. The best performing device employing MAPbI3 perovskite micro-needles yielded stable and hysteresis-free devices with a best power conversion efficiency of (PCEbest) of 17.98%. The current findings highlight the potential of perovskite micro-needles as novel absorber systems and lay the basis for future commercialization.

Graphical abstract: MAPbI3 microneedle-arrays for perovskite photovoltaic application

Supplementary files

Article information

Article type
Communication
Submitted
28 iyn 2018
Accepted
25 iyl 2018
First published
17 avq 2018
This article is Open Access
Creative Commons BY-NC license

Nanoscale Adv., 2019,1, 64-70

MAPbI3 microneedle-arrays for perovskite photovoltaic application

K. Mahmood, A. Khalid and M. T. Mehran, Nanoscale Adv., 2019, 1, 64 DOI: 10.1039/C8NA00064F

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