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10.1038/srep44629 http://scihub22266oqcxt.onion/10.1038/srep44629 C5357960!5357960 !28317883     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=28317883 &cmd=llinks): Failed to open stream: HTTP request failed! 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Optical determination of Shockley-Read-Hall and interface recombination currents in hybrid perovskites |pdf=|usr=}}{{28317883 }} gab.com Text Optical determination of Shockley-Read-Hall and interface recombination currents in hybrid perovskites JO: Sci Rep http://www.kidney.de/pget.php?&tw=1&pmid=28317883 #FOAvip Metal-halide perovskite solar cells rival the best inorganic solar cells in power conversion efficiency, providing the outlook for efficient, cheap devices. In order for the technology to mature and approach the ideal Shockley-Queissier efficiency, experimental tools are needed to diagnose what processes limit performances, beyond simply measuring electrical characteristics often affected by parasitic effects and difficult to interpret. Here we study the microscopic origin of recombination currents causing photoconversion losses with an all-optical technique, measuring the electron-hole free energy as a function of the exciting light intensity. Our method allows assessing the ideality factor and breaks down the electron-hole recombination current into bulk defect and interface contributions, providing an estimate of the limit photoconversion efficiency, without any real charge current flowing through the device. We identify Shockley-Read-Hall recombination as the main decay process in insulated perovskite layers and quantify the additional performance degradation due to interface recombination in heterojunctions. Twit Text FOAVip Optical determination of Shockley-Read-Hall and interface recombination currents in hybrid perovskites ????Sci Rep http://www.kidney.de/pget.php?&tw=1&pmid=28317883 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=28317883 #FOAvip English Wikipedia <ref>{{Cite pmid|28317883 }}</ref> Optical determination of Shockley-Read-Hall and interface recombination currents in hybrid perovskites #MMPMID28317883 Sarritzu V ; Sestu N ; Marongiu D ; Chang X ; Masi S ; Rizzo A ; Colella S ; Quochi F ; Saba M ; Mura A ; Bongiovanni G Sci Rep 2017[Mar]; 7 (ä): 44629 PMID28317883 show ga Metal-halide perovskite solar cells rival the best inorganic solar cells in power conversion efficiency, providing the outlook for efficient, cheap devices. In order for the technology to mature and approach the ideal Shockley-Queissier efficiency, experimental tools are needed to diagnose what processes limit performances, beyond simply measuring electrical characteristics often affected by parasitic effects and difficult to interpret. Here we study the microscopic origin of recombination currents causing photoconversion losses with an all-optical technique, measuring the electron-hole free energy as a function of the exciting light intensity. Our method allows assessing the ideality factor and breaks down the electron-hole recombination current into bulk defect and interface contributions, providing an estimate of the limit photoconversion efficiency, without any real charge current flowing through the device. We identify Shockley-Read-Hall recombination as the main decay process in insulated perovskite layers and quantify the additional performance degradation due to interface recombination in heterojunctions. äOptical determination of Shockley-Read-Hall and interface recombinatio(epmc).pdf DeepDyve Pubget Overpricing