Supporting Information Old Relief Printing Applied to Current Preparation of Multi-Color and High Resolution Colloidal Photonic Crystal Patterns
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چکیده
Materials: Tetraethylorthosilicate (TEOS, 98%), aqueous ammonia (28%) were purchased from Sinopharm Chemical Reagent Co. Ltd.. Carbon black (99.5%, 30 nm) was purchased from Aladdin Co. Ltd.. Ethylene glycol (EG, 99%) and ethanol (99.9%) were purchased from J&K Co. Ltd.. Poly(ethylene glycol) methacrylate (PEGMA, Mn=360) and poly(ethylene glycol) diacrylate (PEGDA, Mn=700) was purchased from Sigma-Aldrich. Silicone elastomer base and curing agent (Sylgard 184) were obtained from Dow Corning. All chemicals were used directly as received without further purification.
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