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10.1038/s41598-017-06245-5 http://scihub22266oqcxt.onion/10.1038/s41598-017-06245-5 C5522453!5522453!28733664     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=28733664&cmd=llinks): Failed to open stream: HTTP request failed! 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Charge Injection, Carriers Recombination and HOMO Energy Level Relationship in Perovskite Solar Cells |pdf=|usr=}}{{28733664}} gab.com Text Charge Injection, Carriers Recombination and HOMO Energy Level Relationship in Perovskite Solar Cells JO: Sci Rep http://www.kidney.de/pget.php?&tw=1&pmid=28733664 #FOAvip We present a comparative study between a series of well-known semiconductor polymers, used in efficient organic solar cells as hole transport materials (HTM), and the state-of-the art material used as hole transport material in perovskite solar cells: the spiro-OMeTAD. The observed differences in solar cell efficiencies are studied in depth using advanced photoinduced spectroscopic techniques under working illumination conditions. We have observed that there is no correlation between the highest occupied molecular orbital (HOMO) energy levels of the organic semiconductors and the measured open-circuit voltage (VOC). For instance, spiro-OMeTAD and P3HT have a comparable HOMO level of ~5.2?eV vs vacuum even though a difference in VOC of around 200?mV is recorded. This difference is in good agreement with the shift observed for the charge vs voltage measurements. Moreover, hole transfer from the perovskite to the HTM, estimated qualitatively from fluorescence quenching and emission lifetime, seems less efficient for the polymeric HTMs. Finally, the recombination currents from all devices were estimated by using the measured charge (calculated using photoinduced differential charging) and the carriers? lifetime and their value resulted in accordance with the registered short-circuit currents (JSC) at 1 sun. Twit Text FOAVip Charge Injection, Carriers Recombination and HOMO Energy Level Relationship in Perovskite Solar Cells ????Sci Rep http://www.kidney.de/pget.php?&tw=1&pmid=28733664 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=28733664 #FOAvip English Wikipedia <ref>{{Cite pmid|28733664}}</ref> Charge Injection, Carriers Recombination and HOMO Energy Level Relationship in Perovskite Solar Cells #MMPMID28733664 Jiménez-López J; Cambarau W; Cabau L; Palomares E Sci Rep 2017[]; 7 (ä): ä PMID28733664show ga We present a comparative study between a series of well-known semiconductor polymers, used in efficient organic solar cells as hole transport materials (HTM), and the state-of-the art material used as hole transport material in perovskite solar cells: the spiro-OMeTAD. The observed differences in solar cell efficiencies are studied in depth using advanced photoinduced spectroscopic techniques under working illumination conditions. We have observed that there is no correlation between the highest occupied molecular orbital (HOMO) energy levels of the organic semiconductors and the measured open-circuit voltage (VOC). For instance, spiro-OMeTAD and P3HT have a comparable HOMO level of ~5.2?eV vs vacuum even though a difference in VOC of around 200?mV is recorded. This difference is in good agreement with the shift observed for the charge vs voltage measurements. Moreover, hole transfer from the perovskite to the HTM, estimated qualitatively from fluorescence quenching and emission lifetime, seems less efficient for the polymeric HTMs. Finally, the recombination currents from all devices were estimated by using the measured charge (calculated using photoinduced differential charging) and the carriers? lifetime and their value resulted in accordance with the registered short-circuit currents (JSC) at 1 sun. äCharge Injection, Carriers Recombination and HOMO Energy Level Relatio(epmc).pdf DeepDyve Pubget Overpricing