| Cu2Sn1-xGexS3 (x= 0.17) thin-film solar cells with high conversion efficiency of 6.0% M Umehara, Y Takeda, T Motohiro, T Sakai, H Awano, R Maekawa Applied Physics Express 6 (4), 045501, 2013 | 173 | 2013 |
| Cu2ZnSnS4 photovoltaic cell with improved efficiency fabricated by high‐temperature annealing after CdS buffer‐layer deposition S Tajima, M Umehara, M Hasegawa, T Mise, T Itoh Progress in Photovoltaics: Research and Applications 25 (1), 14-22, 2017 | 135 | 2017 |
| Cu2Sn1− xGexS3 solar cells fabricated with a graded bandgap structure M Umehara, S Tajima, Y Aoki, Y Takeda, T Motohiro Applied Physics Express 9 (7), 072301, 2016 | 97 | 2016 |
| Analyzing machine learning models to accelerate generation of fundamental materials insights M Umehara, HS Stein, D Guevarra, PF Newhouse, DA Boyd, JM Gregoire npj Computational Materials 5 (1), 34, 2019 | 74 | 2019 |
| Energy level diagram around Ge-rich grain boundaries in Cu2Sn1-xGexS3 (CTGS) thin-film solar cells M Umehara, Y Takeda, K Oh-Ishi, Y Aoki, T Motohiro, T Sakai, ... Solar Energy Materials and Solar Cells 134, 1-4, 2015 | 30 | 2015 |
| Multi-component background learning automates signal detection for spectroscopic data SE Ament, HS Stein, D Guevarra, L Zhou, JA Haber, DA Boyd, ... npj Computational Materials 5 (1), 77, 2019 | 25 | 2019 |
| Combinatorial alloying improves bismuth vanadate photoanodes via reduced monoclinic distortion PF Newhouse, D Guevarra, M Umehara, SE Reyes-Lillo, L Zhou, ... Energy & Environmental Science 11 (9), 2444-2457, 2018 | 24 | 2018 |
| Photovoltaic properties of Cu2ZnSnS4 cells fabricated using ZnSnO and ZnSnO/CdS buffer layers S Tajima, M Umehara, T Mise Japanese journal of applied physics 55 (11), 112302, 2016 | 23 | 2016 |
| Laser annealing to form high-temperature phase of FeS2 M Umehara, Y Takeda, H Azuma, T Motohiro Japanese Journal of Applied Physics 51 (2S), 02BP10, 2012 | 20 | 2012 |
| Wide bandgap Cu2ZnSn1− xGexS4 fabricated on transparent conductive oxide-coated substrates for top-cells of multi-junction solar cells M Umehara, S Tajima, Y Takeda, T Motohiro Journal of Alloys and Compounds 689, 713-717, 2016 | 17 | 2016 |
| Multi-modal optimization of bismuth vanadate photoanodes via combinatorial alloying and hydrogen processing PF Newhouse, D Guevarra, M Umehara, DA Boyd, L Zhou, JK Cooper, ... Chemical communications 55 (4), 489-492, 2019 | 16 | 2019 |
| Improvement of red light response of Cu2Sn1− xGexS3 solar cells by optimization of CdS buffer layers M Umehara, Y Takeda, S Tajima, T Motohiro, T Sakai, R Maekawa Journal of Applied Physics 118 (15), 2015 | 14 | 2015 |
| Enhanced bulk transport in copper vanadate photoanodes identified by combinatorial alloying PF Newhouse, D Guevarra, L Zhou, Y Wang, M Umehara, DA Boyd, ... Matter 3 (5), 1601-1613, 2020 | 8 | 2020 |
| Bi alloying into rare earth double perovskites enhances synthesizability and visible light absorption PF Newhouse, L Zhou, M Umehara, DA Boyd, E Soedarmadji, JA Haber, ... ACS Combinatorial Science 22 (12), 895-901, 2020 | 6 | 2020 |
| Alkaline-stable nickel manganese oxides with ideal band gap for solar fuel photoanodes SK Suram, L Zhou, A Shinde, Q Yan, J Yu, M Umehara, HS Stein, ... Chemical communications 54 (36), 4625-4628, 2018 | 6 | 2018 |
| Band slope in CdS layer of ZnO: Ga/CdS/Cu2ZnSnS4 photovoltaic cells revealed by hard X-ray photoelectron spectroscopy K Kataoka, S Tajima, M Umehara, N Takahashi, N Isomura, K Kitazumi, ... Applied Physics Letters 109 (20), 2016 | 6 | 2016 |
| Spike current induction by photogenerated charge accumulation at the surface sites of porous porphyrinic zirconium metal-organic framework electrodes in photoelectrochemical cells S Moribe, Y Takeda, M Umehara, H Kikuta, J Ito, J Ma, Y Yamada, ... Bulletin of the Chemical Society of Japan 96 (4), 321-327, 2023 | 3 | 2023 |
| Hepatobiliary and Pancreatic: Hemosuccus pancreaticus due to an intraductal papillary mucinous neoplasm: A rare cause of obscure gastrointestinal bleeding R Sugiura, K Kinoshita, H Naruse, Y Yamamoto, K Hatanaka, J Ito, ... Journal of gastroenterology and hepatology 35 (3), 363, 2020 | 3 | 2020 |
| Sintering Metal–Organic Framework Gels for Application as Structural Adhesives I Miyazaki, Y Masuoka, A Ohshima, N Takahashi, A Suzumura, S Moribe, ... Small 19 (25), 2300298, 2023 | 2 | 2023 |
| Combinatorial Synthesis of Oxysulfides in the Lanthanum–Bismuth-Copper System M Umehara, L Zhou, JA Haber, D Guevarra, K Kan, PF Newhouse, ... ACS Combinatorial Science 22 (6), 319-326, 2020 | 2 | 2020 |
