[1] Henan Univ, Sch Mat Sci & Engn, Natl & Local Joint Engn Res Ctr High Efficiency D, Key Lab Special Funct Mat, Kaifeng, Henan, Peoples R China
[2] Henan Univ, Collaborat Innovat Ctr Nano Funct Mat & Applicat, Kaifeng, Henan, Peoples R China
[3] Henan Univ, Dept Phys & Elect, Kaifeng, Henan, Peoples R China
[4] Sandia Natl Labs, Ctr Integrated Nanotechnol, Livermore, CA 94550 USA
[5] Univ New Mexico, Dept Chem & Biol Engn, Albuquerque, NM 87131 USA