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output_qa.jsonl

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+{"answers": {"text": ["851mV"], "answer_start": [108]}, "title": "10.1016/j.jpowsour.2016.04.062", "context": "CH3NH3PbI3 perovskite solar cells prepared from PbI2 films without solvent treatment show an average Voc of 851mV, Jsc of 18.26mAcm−2, FF of 60.54%, and PCE of 9.42%.", "question": "What is the value of Voc?", "id": "1"}
+{"answers": {"text": ["866mV"], "answer_start": [55]}, "title": "10.1016/j.jpowsour.2016.04.062", "context": "In reverse scan mode, the champion cell gives a Voc of 866mV, Jsc of 21.65mAcm−2, FF of 59.7%, and PCE of 10.45%.", "question": "What is the value of Voc?", "id": "2"}
+{"answers": {"text": ["CH3NH3PbI3"], "answer_start": [64]}, "title": "10.1016/j.jpowsour.2016.04.062", "context": "This method provides a new route to control the morphologies of CH3NH3PbI3 films, and can be used to further improve the efficiency of perovskite solar cells.Photographs of PbI2 films, XRD and UV–vis spectrum of PbI2 films, J-V curve of champion perovskite solar cell.Supplementary data related to this article can be found at", "question": "What is perovskite?", "id": "3"}
+{"answers": {"text": ["100mWcm−2"], "answer_start": [132]}, "title": "10.1016/j.jpowsour.2016.04.062", "context": "J-V characteristics of the perovskite solar cells were measured on a CHI660C electrochemical workstation under AM 1.5 illumination (100mWcm−2).", "question": "What is the value of illumination?", "id": "4"}

output_secondqa.jsonl

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+{"answers": {"text": ["CH3NH3PbI3"], "answer_start": [0]}, "title": "10.1016/j.jpowsour.2016.04.062", "context": "CH3NH3PbI3 perovskite solar cells prepared from PbI2 films without solvent treatment show an average Voc of 851mV, Jsc of 18.26mAcm−2, FF of 60.54%, and PCE of 9.42%.", "question": "What material has Voc of 851mV?", "id": "100001"}