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Title: Series Resistance Measurements of Perovskite Solar Cells Using Jsc–Voc Measurements

Journal Article · · Solar RRL
 [1];  [2];  [3];  [3];  [1];  [2];  [4];  [2]
  1. Arizona State Univ., Tempe, AZ (United States); Univ. of Konstanz (Germany)
  2. Arizona State Univ., Tempe, AZ (United States)
  3. Stanford Univ., CA (United States)
  4. Stanford Univ., CA (United States); Univ. of Colorado, Boulder, CO (United States)
+ Show Author Affiliations

The fill factor (FF) of perovskite solar cells is considerably lower than that of gallium arsenide and silicon cells, though they have similar open–circuit voltage deficits. To probe the FF loss, which mainly comes from series resistance, the Jsc–Voc characterization technique is applied to perovskite solar cells. A continuous–lamp solar simulator with an array of neutral density filters is used instead of the quasi–steady–state photoconductance technique commonly employed for silicon cells, which allows us to tune sweep parameters to accommodate the complex behavior of perovskites such as hysteresis. It is found that, for Cs0.25FA0.75Pb(Br0.2I0.8)3 (CsFA) perovskite cells, sweeping from positive to negative voltage yields the same series resistance regardless of sweep speed, whereas this is not the case if the sweep is reversed. However, for CH3NH3PbI3 perovskite cells, the series resistance is independent of the sweep speed in both sweep directions. Furthermore, it is also found that, for a poly[bis(4–phenyl)(2,4,6–trimethylphenyl)amine] (PTAA) hole contact, increasing the PTAA thickness barely changes the recombination–limited pseudo–FF, but reduces the FF due to increased series resistance. A maximum FF of 80.9% was achieved with the PTAA hole contact on a CsFA perovskite absorber.

Research Organization:
Stanford Univ., CA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
EE0008167
OSTI ID:
1686154
Alternate ID(s):
OSTI ID: 1496908
Journal Information:
Solar RRL, Vol. 3, Issue 4; ISSN 2367-198X
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 55 works
Citation information provided by
Web of Science

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Cited By (3)

How to Report Record Open‐Circuit Voltages in Lead‐Halide Perovskite Solar Cells journal November 2019
Hierarchy of interfacial passivation in inverted perovskite solar cells journal January 2019
How to report record open-circuit voltages in lead-halide perovskite solar cells text January 2021

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