Conversion efficiency enhancement of methylammonium lead triiodide perovskite solar cells converted from thermally deposited lead iodide via thin methylammonium iodide interlayer

Wei Chih Lai, Wen Ming Hsieh, Huai Cheng Yu, Siou Huei Yang, Tzung Fang Guo, Peter Chen

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

The thermally deposited thin methylammonium iodide (MAI) interlayer worked as protection layer of poly (3, 4-ethylenedioxythiophene) poly (styrene sulfonate) (PEDOT:PSS) in the thermal deposition of lead iodide (PbI2). And the thin MAI interlayer could be the MAI supplemental layer during converting the thermally deposited PbI2 into perovskite. The performances of perovskite solar cells (SCs) converted from thermally deposited PbI2 were remarkably enhanced by using the thin MAI interlayer on PEDOT:PSS. The short-circuit current density (JSC), fill factor (FF%), and conversion efficiency (η%) of perovskite SCs converted from thermally deposited PbI2 increased with the initial increase in thickness of the thin MAI interlayer and then reduced when the thickness of thin MAI interlayer exceeded 2.2 nm. Perovskite SCs converted from thermally deposited PbI2 with a 2.2 nm-thick thin MAI interlayer obtained the largest JSC, FF%, and η% at 19.44 mA/cm2, 74% and 12.75%, respectively, in our study. And the largest JSC was more than twice larger than that of perovskite SCs converted from thermally deposited PbI2 without thin MAI interlayer. Although the perovskite SCs converted from thermally deposited PbI2 without thin MAI interlayer has η% much less than that of perovskite SCs converted from spin-coated PbI2. The perovskite SCs converted from thermally deposited PbI2 with 2.2 nm-thick thin MAI interlayer had an η% of 12.75%, which was larger than that of perovskite SCs converted from spin-coated PbI2 at 10.57%.

原文English
文章編號105713
期刊Organic Electronics
82
DOIs
出版狀態Published - 2020 7月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 生物材料
  • 一般化學
  • 凝聚態物理學
  • 材料化學
  • 電氣與電子工程

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