Optimizing Perovskite Solar Cells by Understanding the Bulk Properties of Contact Layers

Mason Mahaffey, Zhengshan Jason Yu, Vidya Krishnan, David Quispe, Arthur Onno, Zachary Holman

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Along with optimizing perovskite-contact interfaces is the need to optimize the bulk contact properties in relation to passivation, selectivity, and conductivity. In this work, we investigate the thickness-dependence of the implied-JV, pseudo-JV, and JV curves for devices made with different perovskite contact layers. We are able to extract from these curves selectivity ( boldsymbol{V}-{oo}/iV-{oc}), series resistance, efficiencies, and fill factors in order to demonstrate the reasons for optimal device performance and to offer paths forward for improving each contact. Additionally, we show the spatial variance of boldsymbol{i} boldsymbol{V}-{oc} of perovskite grown on top of hole contact layers to demonstrate the effects of this variation on final device performance.

Original languageEnglish (US)
Title of host publication2022 IEEE 49th Photovoltaics Specialists Conference, PVSC 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages3
ISBN (Electronic)9781728161174
StatePublished - 2022
Event49th IEEE Photovoltaics Specialists Conference, PVSC 2022 - Philadelphia, United States
Duration: Jun 5 2022Jun 10 2022

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371


Conference49th IEEE Photovoltaics Specialists Conference, PVSC 2022
Country/TerritoryUnited States


  • ERE
  • PTAA
  • implied voltage
  • perovskite
  • selectivity

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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