Improved carriers injection capacity in perovskite solar cells by introducing A-site interstitial defects
Journal of Materials Chemistry A, ISSN: 2050-7496, Vol: 5, Issue: 17, Page: 7905-7911
2017
- 105Citations
- 115Captures
Metric Options: Counts1 Year3 YearSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
Organic-inorganic hybrid perovskite solar cells have emerged as a promising candidate for next generation solar cells. The most extensively used perovskite absorber is methylammonium lead iodide (MAPbI). Defect types and quantities, particularly for the defects involving A-site cation (MA), appear to have significant influence on material properties and on the solar cell performance. In this report, by introducing a smaller sized potassium cation (K) into the lattice structure of MAPbI, the photovoltaic performance of mixed-cation perovskite solar cells was enhanced. X-ray diffraction data indicate that the K mainly occupied the interstitial position in the perovskite crystal lattice. Systematic study has demonstrated that there are several benefits of introducing the proper amount of K to MAPbI. The increased crystallinity, red shifted photoluminescence (PL) spectra and decreased surface potential result in eminent carrier separation properties and thus reduce the charge recombination in solar cell devices. The optimized mixing range has been investigated; when 0 ≤ K content of x (x is the ratio of K:Pb) ≤ 0.2, the modified mixed perovskite solar cell exhibited better photoelectric conversion efficiencies than that of pristine MAPbI. Particularly, the perovskite solar cell presents balanced injection capacity for both holes and electrons when x = 0.2, and a conversion efficiency of 19.3% is obtained.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85021989414&origin=inward; http://dx.doi.org/10.1039/c7ta01203a; http://xlink.rsc.org/?DOI=C7TA01203A; http://pubs.rsc.org/en/content/articlepdf/2017/TA/C7TA01203A; https://xlink.rsc.org/?DOI=C7TA01203A; https://dx.doi.org/10.1039/c7ta01203a; https://pubs.rsc.org/en/content/articlelanding/2017/ta/c7ta01203a
Royal Society of Chemistry (RSC)
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know