{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T17:31:25Z","timestamp":1790011885421,"version":"4.0.1"},"reference-count":27,"publisher":"Wiley","issue":"18","license":[{"start":{"date-parts":[[2016,9,1]],"date-time":"2016-09-01T00:00:00Z","timestamp":1472688000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"CREST project in Japan"}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["ChemSusChem"],"published-print":{"date-parts":[[2016,9,22]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The interface between the perovskite (PVK, CH<jats:sub>3<\/jats:sub>NH<jats:sub>3<\/jats:sub>PbI<jats:sub>3<\/jats:sub>) and hole\u2010transport layers in perovskite solar cells is discussed. The device architecture studied is as follows: F\u2010doped tin oxide (FTO)\u2010coated glass\/compact TiO<jats:sub>2<\/jats:sub>\/mesoporous TiO<jats:sub>2<\/jats:sub>\/PVK\/2,2\u2032,7,7\u2032\u2010tetrakis\u2010(<jats:italic>N<\/jats:italic>,<jats:italic>N<\/jats:italic>\u2010di\u20104\u2010methoxyphenylamino)\u20109,9\u2032\u2010spirobifluorene (Spiro\u2010MeOTAD)\/Au. After a thin layer of 4,4,4\u2010trifluorobutylammonium iodide (TFBA) was inserted at the interface between PVK and Spiro\u2010MeOTAD, the photovoltaic efficiency increased from 11.6\u201314.5\u2009% to 15.1\u201317.6\u2009%. TFBA (10\u2005ppm) was added in the PVK solution before coating. Owing to the low surface tension of TFBA, TFBA rose to the surface of the PVK layer spontaneously during spin\u2010coating to make a thin organic layer. The PVK grain boundaries also seemed to be passivated with the addition of TFBA. However, large differences in Urbach energies and valence band energy level were not observed for the PVK layer with and without the addition of TFBA. The charge recombination time constant between the PVK and the Spiro\u2010MeOTAD became slower (from 8.4 to 280\u2005\u03bcsec) after 10\u2005ppm of TFBA was added in the PVK. The experimental results using TFBA conclude that insertion of a very thin layer at the interface between PVK and Spiro\u2010MeOTAD is effective for suppressing charge recombination and increasing photovoltaic performances.<\/jats:p>","DOI":"10.1002\/cssc.201600848","type":"journal-article","created":{"date-parts":[[2016,9,1]],"date-time":"2016-09-01T16:52:27Z","timestamp":1472748747000},"page":"2634-2639","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":39,"title":["Architecture of the Interface between the Perovskite and Hole\u2010Transport Layers in Perovskite Solar Cells"],"prefix":"10.1002","volume":"9","author":[{"given":"Masahiro","family":"Moriya","sequence":"first","affiliation":[{"name":"Department Graduate School of Life Science and Systems Engineering Kyushu Institute of Technology  2-4 Hibikino Wakamatsu-ku Kitakyushu 808-0196 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daisuke","family":"Hirotani","sequence":"additional","affiliation":[{"name":"Department Graduate School of Life Science and Systems Engineering Kyushu Institute of Technology  2-4 Hibikino Wakamatsu-ku Kitakyushu 808-0196 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tsuyoshi","family":"Ohta","sequence":"additional","affiliation":[{"name":"Department Graduate School of Life Science and Systems Engineering Kyushu Institute of Technology  2-4 Hibikino Wakamatsu-ku Kitakyushu 808-0196 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuhei","family":"Ogomi","sequence":"additional","affiliation":[{"name":"Department Graduate School of Life Science and Systems Engineering Kyushu Institute of Technology  2-4 Hibikino Wakamatsu-ku Kitakyushu 808-0196 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qing","family":"Shen","sequence":"additional","affiliation":[{"name":"The University of Electro-Communications  1-5-1 Chofugaoka, Chofu Tokyo 182-8585 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Teresa S.","family":"Ripolles","sequence":"additional","affiliation":[{"name":"Department Graduate School of Life Science and Systems Engineering Kyushu Institute of Technology  2-4 Hibikino Wakamatsu-ku Kitakyushu 808-0196 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kenji","family":"Yoshino","sequence":"additional","affiliation":[{"name":"Department of Applied Physics and Electronic Engineering University of Miyazaki  Miyazaki 889-2192 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Taro","family":"Toyoda","sequence":"additional","affiliation":[{"name":"The University of Electro-Communications  1-5-1 Chofugaoka, Chofu Tokyo 182-8585 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takashi","family":"Minemoto","sequence":"additional","affiliation":[{"name":"Department of Electrical and Electronic Engineering Ritsumeikan University  1-1-1 Nojihigashi Kusatsu Shiga 525-8577 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuzi","family":"Hayase","sequence":"additional","affiliation":[{"name":"Department Graduate School of Life Science and Systems Engineering Kyushu Institute of Technology  2-4 Hibikino Wakamatsu-ku Kitakyushu 808-0196 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2016,9]]},"reference":[{"key":"e_1_2_6_1_1","doi-asserted-by":"publisher","DOI":"10.1021\/nl400349b"},{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/srep00591"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature12340"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1228604"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1039\/c3ee40810h"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1038\/nphoton.2013.342"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1021\/jz4020162"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature12509"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/pip.2788"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/cphc.201301153"},{"key":"e_1_2_6_11_1","first-page":"16651","volume":"118","author":"Ogomi Y.","year":"2014","journal-title":"J. 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