FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3124445947> ?p ?o ?g. }

• W3124445947 endingPage "566" @default.
• W3124445947 startingPage "554" @default.
• W3124445947 abstract "Over the past decade, remarkable progress has advanced the field of perovskite solar cells to the forefront of thin film solar technologies. The stoichiometry of the perovskite material is of paramount importance as it determines the optoelectronic properties of the absorber and hence the device performance. However, little published work has focused on the synthesis of fully stoichiometric precursor materials of high purity and at high yield. Here, we report a low-cost, energy-efficient, and solvent-free synthesis of the lead iodide precursor by planetary ball milling. With our synthetic approach, we produce low-oxygen, single or multiple polytypic phase PbI2 with tunable stoichiometry. We determine the stoichiometry and the polytypes present in our synthesized materials and further compare them to commercially available materials, using X-ray diffraction, X-ray photoelectron spectroscopy, and Rutherford backscattering spectroscopy. Both the stoichiometric PbI2 we synthesized and a substoichiometric commercially available PbI2 (where the iodide content is below the optimum Pb:I atomic ratio of 1:2) were used to grow methylammonium lead iodide microcrystals (which corrects the iodide content). Perovskite solar cells were then produced using stoichiometric and substoichiometric PbI2 mixed with an equimolar amount of methylammonium iodide and compared to devices produced from re-dissolved microcrystals. The photoactive perovskite layer deposition was processed in air, enabled by the use of a single low-toxicity solvent (dimethyl sulfoxide) combined with vacuum-assisted solvent evaporation. We find that the device performance is strongly dependent upon the stoichiometry of the lead iodide precursor, reaching champion efficiencies over 17%, with no obvious correlation with its polytypic phases. This work highlights the critical role of PbI2 stoichiometry in hybrid perovskites as well as demonstrating synthesis methods and perovskite layer fabrication protocols suitable for low-cost solar energy harvesting." @default.
• W3124445947 created "2021-02-01" @default.
• W3124445947 creator A5007668808 @default.
• W3124445947 creator A5012030681 @default.
• W3124445947 creator A5012947724 @default.
• W3124445947 creator A5037474927 @default.
• W3124445947 creator A5044301255 @default.
• W3124445947 creator A5048780947 @default.
• W3124445947 creator A5059085620 @default.
• W3124445947 creator A5066403563 @default.
• W3124445947 creator A5070537312 @default.
• W3124445947 creator A5090299541 @default.
• W3124445947 date "2021-01-14" @default.
• W3124445947 modified "2023-10-01" @default.
• W3124445947 title "Controlling PbI₂ Stoichiometry during Synthesis to Improve the Performance of Perovskite Photovoltaics" @default.
• W3124445947 cites W1766531778 @default.
• W3124445947 cites W1969365625 @default.
• W3124445947 cites W1992465076 @default.
• W3124445947 cites W1992519153 @default.
• W3124445947 cites W1998099868 @default.
• W3124445947 cites W1998805170 @default.
• W3124445947 cites W2006866484 @default.
• W3124445947 cites W2007028982 @default.
• W3124445947 cites W2011472471 @default.
• W3124445947 cites W2037252768 @default.
• W3124445947 cites W2047417630 @default.
• W3124445947 cites W2050336659 @default.
• W3124445947 cites W2057327293 @default.
• W3124445947 cites W2084700204 @default.
• W3124445947 cites W2087789572 @default.
• W3124445947 cites W2088824671 @default.
• W3124445947 cites W2089258566 @default.
• W3124445947 cites W2090851065 @default.
• W3124445947 cites W2095281427 @default.
• W3124445947 cites W2100825957 @default.
• W3124445947 cites W2106706072 @default.
• W3124445947 cites W2120609771 @default.
• W3124445947 cites W2134379336 @default.
• W3124445947 cites W2184122576 @default.
• W3124445947 cites W2301656337 @default.
• W3124445947 cites W2339358608 @default.
• W3124445947 cites W2345162127 @default.
• W3124445947 cites W2404714654 @default.
• W3124445947 cites W2410619939 @default.
• W3124445947 cites W2482154572 @default.
• W3124445947 cites W2507995640 @default.
• W3124445947 cites W2549518562 @default.
• W3124445947 cites W2558455290 @default.
• W3124445947 cites W2564627854 @default.
• W3124445947 cites W2564888187 @default.
• W3124445947 cites W2574087926 @default.
• W3124445947 cites W2582017659 @default.
• W3124445947 cites W2590047498 @default.
• W3124445947 cites W2598052878 @default.
• W3124445947 cites W2602430337 @default.
• W3124445947 cites W2602859101 @default.
• W3124445947 cites W2605926379 @default.
• W3124445947 cites W2757203376 @default.
• W3124445947 cites W2758650598 @default.
• W3124445947 cites W2768194972 @default.
• W3124445947 cites W2771033947 @default.
• W3124445947 cites W2778746525 @default.
• W3124445947 cites W2790433239 @default.
• W3124445947 cites W2793015548 @default.
• W3124445947 cites W2805902362 @default.
• W3124445947 cites W2808551223 @default.
• W3124445947 cites W2810930280 @default.
• W3124445947 cites W2888402103 @default.
• W3124445947 cites W2901521419 @default.
• W3124445947 cites W2901663578 @default.
• W3124445947 cites W2902070141 @default.
• W3124445947 cites W2913749738 @default.
• W3124445947 cites W2913970360 @default.
• W3124445947 cites W2952759324 @default.
• W3124445947 cites W3037371703 @default.
• W3124445947 cites W3044919833 @default.
• W3124445947 doi "https://doi.org/10.1021/acs.chemmater.0c03517" @default.
• W3124445947 hasPublicationYear "2021" @default.
• W3124445947 type Work @default.
• W3124445947 sameAs 3124445947 @default.
• W3124445947 citedByCount "11" @default.
• W3124445947 countsByYear W31244459472021 @default.
• W3124445947 countsByYear W31244459472022 @default.
• W3124445947 countsByYear W31244459472023 @default.
• W3124445947 crossrefType "journal-article" @default.
• W3124445947 hasAuthorship W3124445947A5007668808 @default.
• W3124445947 hasAuthorship W3124445947A5012030681 @default.
• W3124445947 hasAuthorship W3124445947A5012947724 @default.
• W3124445947 hasAuthorship W3124445947A5037474927 @default.
• W3124445947 hasAuthorship W3124445947A5044301255 @default.
• W3124445947 hasAuthorship W3124445947A5048780947 @default.
• W3124445947 hasAuthorship W3124445947A5059085620 @default.
• W3124445947 hasAuthorship W3124445947A5066403563 @default.
• W3124445947 hasAuthorship W3124445947A5070537312 @default.
• W3124445947 hasAuthorship W3124445947A5090299541 @default.
• W3124445947 hasBestOaLocation W31244459472 @default.
• W3124445947 hasConcept C127413603 @default.
• W3124445947 hasConcept C144082473 @default.

• next