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Issue 1, 2019
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MAPbI3 microneedle-arrays for perovskite photovoltaic application

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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

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Supplementary files

Article information


Submitted
28 Jun 2018
Accepted
25 Jul 2018
First published
17 Aug 2018

This article is Open Access

Nanoscale Adv., 2019,1, 64-70
Article type
Communication

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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