2016
DOI: 10.1063/1.4960759
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Abstract: Lead halide perovskite solar cells have shown a tremendous rise in power conversion efficiency with reported record efficiencies of over 20% making this material very promising as a low cost alternative to conventional inorganic solar cells. However, due to a differently severe "hysteretic" behaviour during current density-voltage measurements, which strongly depends on scan rate, device and measurement history, preparation method, device architecture, etc., commonly used solar cell measurements do not give re… Show more

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Cited by 96 publications
(73 citation statements)
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“…The International Summit on Organic Photovoltaics Stability (ISOS) has established protocols for the purpose of enabling accurate comparisons of reported stability and lifetime data for organic solar cells. 107 These protocols have been adopted by some groups working on lead-halide perovskites 108,109 and can be extended to bismuth-based absorbers. Research groups can utilize one of the 5 different test types prescribed in the standards (dark, outdoor, laboratory weathering testing, thermal cycling, and solar-thermal-humidity cycling) independently or in conjunction with each other for a comprehensive set of stability data.…”
Section: Discussionmentioning
confidence: 99%
“…The International Summit on Organic Photovoltaics Stability (ISOS) has established protocols for the purpose of enabling accurate comparisons of reported stability and lifetime data for organic solar cells. 107 These protocols have been adopted by some groups working on lead-halide perovskites 108,109 and can be extended to bismuth-based absorbers. Research groups can utilize one of the 5 different test types prescribed in the standards (dark, outdoor, laboratory weathering testing, thermal cycling, and solar-thermal-humidity cycling) independently or in conjunction with each other for a comprehensive set of stability data.…”
Section: Discussionmentioning
confidence: 99%
“…International standard measurement procedures have been established for relatively stable solar cell devices, such as silicon, copper indium gallium selenide, and cadmium telluride solar cells. [48][49][50] In addition, the poor reproducibility of published results of PSCs makes the value of efforts discounted. [45,46] Furthermore, the PSCs have the risk of undergoing irreversible performance degradation during the measurement according to the recent review on the stability of PSCs.…”
Section: Measurement Of Pscsmentioning
confidence: 99%
“…The range of bias voltage needs to cover the open-circuit voltage (V oc ). [41,48,49] A guideline of eight steps and a cycle for measuring the efficiency of PSCs were put forward. A delay time (T d ) can be defined as the dwell time measuring the current prior to changing the bias voltage to the next step.…”
Section: I-v Characteristicsmentioning
confidence: 99%
“…It can be seen that tremendous improvements have been achieved, and that the highest published PCEs have recently surpassed 12% and 22% for organic and perovskite solar cells, respectively. Along with the rapid advances in these fields, the issue of erroneous efficiency reports in organic and emerging perovskite photovoltaic technologies is currently receiving growing attention, which has driven the publication of several editorials in the Nature family of research journals and editorials/commentaries/opinions in these and other specialized journals . Although the efficiency records are continually broken over time, the photovoltaic parameters of new solar cells often need to be evaluated by an independent institute for a meaningful comparison of PCE values from different research institutions and countries.…”
Section: Introductionmentioning
confidence: 99%