[1] Univ Twente, MESA Inst Nanotechnol, POB 217, NL-7500 AE Enschede, Netherlands
[2] Solmates BV, Drienerlolaan 5, NL-7522 NB Enschede, Netherlands
[3] Hanoi Univ Sci & Technol, Int Training Inst Mat Sci, Dai Co Viet 1, Hanoi 10000, Vietnam
[4] Vietnam Natl Univ Forestry, Hanoi 10000, Vietnam