However, for high Zn-content film, excess doping agent
precipitates resulting in zinc coalescence in certain regions resulting in enhanced absorption which has adverse effect in window layers in solar cells.
After discussing the synthetic and modification methods of PEDOT, the oxidative polycondensation between EDOT and mEDOT monomers in the presence of a new kind of doping agent
. Sulfonated Polyarylethersulfone (SPES)--that was synthesized on purpose, with different degree of sulfonation (DS)--is illustrated.
Lots of French GPs  stated that most records have been broken due to doping (83.5%) and that most of the great champions resort to doping (73%), whereas half of the Serbian GPs believe that most professional athletes used a doping agent
at least once in their career.
The introduction of a doping agent
in a mixed metal oxide ceramic has been considered an interesting strategy for improvement in the dependence of impedance value with relative humidity (RH) variation [10-13].
But triamcinolone has also been widely used as a doping agent
by riders, including Lance Armstrong, and is believed to help athletes fight fatigue and aid recovery.
Because synthetic growth hormone can build muscle and trim body fat, it is prohibited as a doping agent
by many sports organizations.
In other words, contrary to the classification of Australian Institute of Sport (AIS) in which creatine is categorized in the group A supplements with established evidence for legal performance enhancing performance, safety and efficacy (1), football players considered it as a doping agent
, which demonstrates the lack of proper knowledge about supplements notwithstanding the high prevalence of anabolic steroid use which has been reported in the literature (23).
Zinc is well-known doping agent
for hydroxyapatites employed in biomedical applications, because they improve the phosphate bioactivity in many ways.
Lithium acts as promoter, titanium acts as stabilizer, and sodium acts as doping agent
in the process of capturing carbon dioxide over absorbent.
Recombinant GH is already being used as a doping agent
"We would like more opportunity for us to challenge an athlete caught with a serious doping agent
as to why they should get less than four years.
Millar never tested positive but confessed to the use of blood doping agent
EPO and served a two-year ban that ended in 2006.