Precise Control of Crystal Growth for Highly Efficient CsPbI2Br Perovskite Solar Cells

(Joule 3, 191–204; January 16, 2019) In the originally published version of this article, there is a missing description about detector calibration uncertainty of external quantum efficiency (EQE). According to the traceability report of the National Institute of Standards and Technology (NIST), this system error can bring a 3%–5% relative expanded uncertainty in the range of 300–440 nm. We have corrected the manuscript online and in print, adding the description according to the traceability report of NIST as follows. “Note that the high EQE value over 95% around 400-nm wavelength is probably caused by the high detector calibration uncertainty (3%–5%) in the range of 300–440 nm, as evidenced by the traceability report of National Institute of Standards and Technology (NIST) (EnliTech website: http://www.enlitechnology.com/show/uncertainty.htm). In addition, this uncertainty would have a negligible effect on the resulted integrated JSC within 0.1 mA/cm2.” The authors apologize for any confusion this may have caused. Precise Control of Crystal Growth for Highly Efficient CsPbI2Br Perovskite Solar CellsChen et al.JouleOctober 26, 2018In BriefWe propose a GTA + ATS processing method for precisely controlling CsPbI2Br crystal growth by a synergistic effect of gradient thermal annealing (GTA) and anti-solvent (ATS), thus resulting in a uniform and high-quality film. More importantly, we achieve a record efficiency of 16.07% (stabilized efficiency of 15.75%) by this strategy, which is the highest efficiency in all-inorganic perovskite solar cells. Full-Text PDF Open Archive