KIP publications

year 2020
author(s) Valentina Rohnacher, Florian Ullrich, Helge Eggers, Fabian Schackmar, Sebastian Hell, Adriana Salazar, Christian Huck, Gerado Hernandez-Sosa, Ulrich W. Paetzold, Wolfram Jaegermann, Annemarie Pucci
title Analytical Study of Solution-Processed Tin Oxide as Electron Transport Layer in Printed Perovskite Solar Cells
KIP-Nummer HD-KIP 20-51
KIP-Gruppe(n) F6
document type Paper
Keywords atomic force microscopy, infrared spectroscopy, perovskite solar cells, photoelectron spectroscopy, tin oxide
source Advanced Materials Technologies 2020
doi 10.1002/admt.202000282
Abstract (en)

Abstract Solution-processed tin oxide (SnOx) electron transport layers demonstrate excellent performance in various optoelectronic devices and offer the ease of facile and low cost deposition by various printing techniques. The most common precursor solution for the preparation of SnOx thin films is SnCl2 dissolved in ethanol. In order to elucidate the mechanism of the precursor conversion at different annealing temperatures and the optoelectronic performance of the SnOx electron transport layer, phonon and vibrational infrared and photoelectron spectroscopies as well as atomic force microscopy are used to probe the chemical, physical, and morphological properties of the SnOx thin films. The influence of two different solvents on the layer morphology of SnOx thin films is investigated. In both cases, an increasing annealing temperature not only improves the structural and chemical properties of solution-processed SnOx, but also reduces the concentration of tin hydroxide species in the bulk and on the surface of these thin films. As a prototypical example for the high potential of printed SnOx layers for solar cells, high performance perovskite solar cells with a stabilized power conversion efficiency of over 15\% are presented.

  author   = {Rohnacher, Valentina and Ullrich, Florian and Eggers, Helge and Schackmar, Fabian and Hell, Sebastian and Salazar, Adriana and Huck, Christian and Hernandez-Sosa, Gerardo and Paetzold, Ulrich W. and Jaegermann, Wolfram and Pucci, Annemarie},
  title    = {Analytical Study of Solution-Processed Tin Oxide as Electron Transport Layer in Printed Perovskite Solar Cells},
  journal  = {Advanced Materials Technologies},
  year     = {2020},
  volume   = {n/a},
  number   = {n/a},
  pages    = {2000282},
  doi      = {10.1002/admt.202000282},
  url      = {}
URL doi:10.1002/admt.202000282
KIP - Bibliothek
Im Neuenheimer Feld 227
Raum 3.402
69120 Heidelberg