Silver and gold doping of SiO2 glass by solid-state field-assisted diffusion

Chromium doping of silicate glasses by field-assisted solid-state ion exchange

“…The apparatus details are described in refs. [18,22,23]. Samples were prepared with applied electric fields E ranging from 200 to 500 V/mm and temperature T ranging from 150 to 500°C.…”

“…So far, preliminary works published by our research group have demonstrated that the diffusion of Au, Co and Er ions into the glass can be promoted by FASSIE [17][18][19][20][21][22]. Moreover, pure silica was also doped with silver ions by FASSIE, where the diffusion of metallic ions was activated by the defects of the network [23]. The possibility to introduce multivalent transition metals such as chromium opens new promising possibilities for the synthesis of optically active glasses.…”

Silver doping of glasses

“…Owing to the driving external field, the penetration of silver atoms can be promoted even in glass structures with much less sites available than those left by alkali species in silicate soda-lime glasses. Defects population and impurities may in this case play a crucial role, as indicated by preliminary results [116] which show the successful doping of commercial SiO 2 with silver by a field-assisted treatment, giving rise to local re-arrangements of the glassy network that are still to be described in details. Quite recently, Matsusaka et Al.…”

Growth of Gold Nanoparticles in a Glass Matrix by Continuous Laser Irradiation for Efficient Surface Enhanced Raman Scattering

“…The ion exchange technique is ineffective when dealing with Au 3+ ions, due to their trivalent character, which mainly explains that glass substrates doped by Au Nps have not been investigated toward SERS applications, despite their attractiveness. This problem can be resolved by use of the Field‐Assisted Solid‐State Ion Exchange (FASSIE) technique, which has shown its efficiency to dope soda‐lime glasses by Au 3+ ions …”

“…This problem can be resolved by use of the Field-Assisted Solid-State Ion Exchange (FASSIE) technique, which has shown its efficiency to dope soda-lime glasses by Au 3þ ions. [5] In this work, we have used the FASSIE process as a first step to obtain a gold-doped nanocomposite soda-lime glass. Based on previous works with silver-doped similar glass, [2] we have achieved the precipitation of the Au 3þ ions by use of a continuous wave (cw) ultraviolet (UV) laser exposure emitting at 244 nm.…”