Efficient vacuum deposited p-i-n and n-i-p perovskite solar cells employing doped charge transport layers

Cristina Momblona, Lidón Gil-Escrig, Enrico Bandiello, Eline M. Hutter, Michele Sessolo, Kay Lederer, Jan Blochwitz-Nimoth, Henk J. Bolink

Research output: Contribution to journalArticleScientificpeer-review

275 Citations (Scopus)

Abstract

Methylammonium lead halide perovskites have emerged as high performance photovoltaic materials. Most of these solar cells are prepared via solution-processing and record efficiencies (>20%) have been obtained employing perovskites with mixed halides and organic cations on (mesoscopic) metal oxides. Here, we demonstrate fully vacuum deposited planar perovskite solar cells by depositing methylammonium lead iodide in between intrinsic and doped organic charge transport molecules. Two configurations, one inverted with respect to the other, p-i-n and n-i-p, are prepared and optimized leading to planar solar cells without hysteresis and very high efficiencies, 16.5% and 20%, respectively. It is the first time that a direct comparison between these two opposite device configurations has been reported. These fully vacuum deposited solar cells, employing doped organic charge transport layers, validate for the first time vacuum based processing as a real alternative for perovskite solar cell preparation.

Original languageEnglish
Pages (from-to)3456-3463
Number of pages8
JournalEnergy & Environmental Science
Volume9
Issue number11
DOIs
Publication statusPublished - 1 Nov 2016

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