000266605 001__ 266605
000266605 005__ 20190701183439.0
000266605 022__ $$a2194-4288
000266605 022__ $$a2194-4296
000266605 0247_ $$a10.1002/ente.201800905$$2doi
000266605 02470 $$2isi$$a000459817500017
000266605 037__ $$aARTICLE
000266605 245__ $$aInkjet-Printed Mesoporous TiO2 and Perovskite Layers for High Efficiency Perovskite Solar Cells
000266605 269__ $$a2019-02-01
000266605 260__ $$c2019-02-01
000266605 336__ $$aJournal Articles
000266605 520__ $$aPerovskite solar cells with mesoporous TiO2 electron transport layers have previously reached >22 % efficiency at the laboratory scale (<1 cm(2)), however, these layers are fabricated using spin-coating, which is not conducive to large-scale or high throughput fabrication. This report describes the inkjet printing of open-pore mesoporous TiO2 thin films, perovskite thin films, and the fabrication of highly efficient perovskite solar cells using these films. Ink formulation and characterization studies, inkjet deposition optimization trials, film characterization, and comparison to spin-coated layers are described. The printed TiO2 films exhibited an open-pore morphology and homogeneous surface coverage in films ranging from 1 mm(2) to >10 cm(2). Perovskite solar cells with printed and pristine (un-doped) inkjet-printed TiO2 layers yielded efficiencies of 18.29 %, which were found to outperform cells made with spin-coated and pristine TiO2 layers (16.91 %). When a quadruple-cation perovskite absorber containing Cs, formamidinium, methylammonium, and guanidinium was deposited by inkjet-printing onto the inkjet-printed TiO2 layer, nearly 12 % average efficiency was reached, with the champion cell reaching 14.11 %. This absorber exhibited higher efficiency and stability than did inkjet-printed MAPbI(3) films deposited on the inkjet-printed TiO2 film.
000266605 650__ $$aEnergy & Fuels
000266605 650__ $$aEnergy & Fuels
000266605 6531_ $$ainkjet printing
000266605 6531_ $$aperovskite solar cell
000266605 6531_ $$atitanium dioxide
000266605 6531_ $$aoptimization
000266605 6531_ $$aphotovoltaics
000266605 6531_ $$amethylammonium
000266605 6531_ $$astability
000266605 700__ $$g258024$$aHuckaba, Aron J.$$0249205
000266605 700__ $$g231396$$aLee, Yonghui$$0247018
000266605 700__ $$aXia, Rui
000266605 700__ $$g251158$$aPaek, Sanghyun$$0248384
000266605 700__ $$g244118$$aBassetto, Victor Costa$$0248720
000266605 700__ $$g191661$$aOveisi, Emad$$0242227
000266605 700__ $$g208650$$aLesch, Andreas$$0246751
000266605 700__ $$aKinge, Sachin
000266605 700__ $$g149418$$aDyson, Paul J.$$0240015
000266605 700__ $$g105258$$aGirault, Hubert$$0242739
000266605 700__ $$g105958$$aNazeeruddin, Mohammad Khaja$$0240422
000266605 773__ $$q317-324$$k2$$j7$$tEnergy Technology
000266605 8560_ $$fsunny.maye@epfl.ch
000266605 909C0 $$mjacqueline.morard@epfl.ch$$zBorel, Alain$$xU9$$yApproved$$0252010$$pLCOM
000266605 909C0 $$yApproved$$pLEPA$$xU10100$$msunny.maye@epfl.ch$$zBorel, Alain$$0252090
000266605 909CO $$ooai:infoscience.epfl.ch:266605$$particle$$pSB
000266605 961__ $$aalain.borel@epfl.ch
000266605 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000266605 980__ $$aARTICLE
000266605 981__ $$aoverwrite
000266605 999C0 $$zBorel, Alain$$xU12965$$pGMF$$mmdkhaja.nazeeruddin@epfl.ch$$0252519