Jump to main content
Jump to site search

Issue 13, 2016
Previous Article Next Article

Using a low-temperature carbon electrode for preparing hole-conductor-free perovskite heterojunction solar cells under high relative humidity

Author affiliations

Abstract

We demonstrate the application of a low-temperature carbon counter electrode with good flexibility and high conductivity in fabricating perovskite solar cells. A modified two-step method was used for the deposition of nanocrystalline CH3NH3PbI3 under high relative humidity. The carbon counter electrode was printed on a perovskite layer directly, with different sizes of graphite powder being employed. The interfacial charge transfer and transport in solar cells were investigated through photoluminescence and impedance measurements. We find that the existence of nano-graphite powder in the electrode has a noticeable influence on the back contact and cell performance. The prepared devices of hole-conductor-free perovskite heterojunction solar cells without encapsulation exhibit advantageous stability in air in the dark, with the optimal power conversion efficiency reaching 6.88%. This carbon counter electrode has the features of low-cost and low-temperature preparation, giving it potential for application in the large-scale flexible fabrication of perovskite solar cells in the future.

Graphical abstract: Using a low-temperature carbon electrode for preparing hole-conductor-free perovskite heterojunction solar cells under high relative humidity

Back to tab navigation

Supplementary files

Publication details

The article was received on 13 Oct 2015, accepted on 01 Dec 2015 and first published on 02 Dec 2015


Article type: Paper
DOI: 10.1039/C5NR07091K
Author version
available:
Download author version (PDF)
Citation: Nanoscale, 2016,8, 7017-7023
  •   Request permissions

    Using a low-temperature carbon electrode for preparing hole-conductor-free perovskite heterojunction solar cells under high relative humidity

    Z. Liu, T. Shi, Z. Tang, B. Sun and G. Liao, Nanoscale, 2016, 8, 7017
    DOI: 10.1039/C5NR07091K

Search articles by author

Spotlight

Advertisements