Luminescence Alchemy: "Blue-greenlite" - UVc

 

FOV: 2.5" wide.

 

Strontium sulfide made by heating strontium carbonate with hardware store sulfur in molten salt (aka "greenlite"). Copper (~0.1% mol), sodium (~1% mol) and lead (~0.01% mol) were added as activators

 

Source:

Sr......SrCO3 (Alfa Aesar)

S.......Sulfur fungicide (Hardware store)

Cu......CuSO4*5H2O (HST)

Na......NaHCO3 (A&H Baking Soda)

Pb......Pb(NO3)2 (HST)

NaCl....Mixing salt (Hardware store)

 

Suspected phosphor:

SrS:Cu+,Na+,Pb2+ (FL+PHOS! Blue,Green >UVa,bc)

 

Shown under UVc light.

 

Key:

WL = White light (halogen + LED)

FL = Fluoresces

PHOS = Phosporescent

UVa = 368nm (LW), UVb = 311nm (MW), UVc = 254nm (SW)

'>' = "stimulated by:", '!' = "bright", '~' = "dim"

 

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Photostream best viewed in Slideshow mode (in the dark).

 

18 Watt Triple Output UV lamp from Polman Minerals - Way Too Cool UV lamps

 

...\FL min Experiments\Group II Sulfides\In salt\SrS\SrS in salt Cu and Na\SrS in salt Cu Na Pb

Done