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| 1 | Perovskite Solar Cells Yielding Reproducible Photovoltage of 1.20 V显示文摘High photovoltages and power conversion efciencies of perovskite solar cells(PSCs)can be realized by controlling the undesired nonradiative charge carrier recombination.Here,we introduce a judicious amount of guanidinium iodide into mixed-cation and mixed-halide perovskite flms to suppress the parasitic charge carrier recombination,which enabled the fabrication of>20%efcient and operationally stable PSCs yielding reproducible photovoltageas high as 1.20 V.By introducing guanidinium iodide into the perovskite precursor solution,the bandgap of the resulting absorber material changed minimally;however,the nonradiative recombination diminished considerably as revealed by time-resolved photoluminescence and electroluminescence studies.Furthermore,using capacitance-frequency measurements,we were able to correlate the hysteresis features exhibited by the PSCs with interfacial charge accumulation.Tis study opens up a path to realize new record efciencies for PSCs based on guanidinium iodide doped perovskite flms. | Essa A.Alharbi M.Ibrahim Dar Neha Arora Mohammad Hayal Alotaibi Yahya A.Alzhrani Pankaj Yadav Wolfgang Tress Ahmed Alyamani Abdulrahman Albadri Shaik M.Zakeeruddin Michael Grätzel | 2019 | Research2019，，1： | 4 |
| 2 | Polymer supported nitrite esters as di- azotising reagent 显示文摘 | Niyazi Bicak Hayal Bulbul | 2001 | Polymer Bulletin2001，46，2： | 1 |
| 3 | The limitations of the clinical oral examination in detecting dysplastic oral lesions and oral squamous cell carcinoma显示文摘 | Joel B Epstein P Hayal B | 2012 | The Journal of the American Dental Association2012，143，12： | 1 |
| 4 | Adolescents'participation in service activities and its impact on academic ,behavioral and civic outcomes显示文摘 | Jennifer A Schmidt Lee Shumow and Hayal Kackar | 2007 | Journal of Youth and Adolescence2007，，02： | 1 |
| 5 | Highly regi-osilective dinitration of toluene over reusable zeolite H{3显示文摘 | Keith Smith Mohammad Hayal Alotaibi | 2013 | Journal of Catalysi2013，297，： | 1 |
| 6 | Effects of hydroxychloroquine on salivary flow rates and oral complaints of Sj?gren patients: a prospective sample study显示文摘 | Hulya ?ankaya Esin Alp?z Gonca Karabulut Pelin Güneri Hayal Boyac?oglu Yasemin Kabasakal | 2010 | Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology2010，，1： | 1 |
| 7 | Highly regi-osilective dinitration of toluene over reusable zeolite H{3显示文摘 | Keith Smith Mohammad Hayal Alotaibi | 2013 | Journal of Catalysi2013，297，： | 1 |
| 8 | Red, green, and blue colors in polymeric electrochromics 显示文摘 | SONMEZ G SONMEZ HAYAL B CLIFTON K F SHEN | 2004 | Adv Mater2004，16，21： | 1 |
| 9 | P wave dispersion in patients with rheumatoid arthritis: its relation with clinical and echocardiographic parameters显示文摘 | Hayal Guler Ergun Seyfeli Gunsah Sahin Mehmet Duru Ferit Akgul Hayrettin Saglam Fatih Yalcin | 2007 | Rheumatology International2007，，9： | 1 |
| 10 | Water pollution sources assessment by multivariate statistical methods in the Tahtali Basin, Turkey显示文摘 | Hülya Boyacioglu Hayal Boyacioglu | 2008 | Environmental Geology2008，，2： | 1 |
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