"R. Enomoto,M. Hoshi,H. Oyama,H. Agata,S. Kurokawa,H. Kuma,H. Uekusa,Y. Murakami","van der Waals solid solution crystals for highly efficient in-air photon upconversion under subsolar irradiance",,"Mater. Horiz.","Royal Society of Chemistry","Vol. 8",,"pp. 3449-3456",2021,Nov.