Effect of Solvents on the Quantum Efficiency of Rubrene Electrogenerated Chemiluminescence
1973 ◽
Vol 51
(20)
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pp. 3467-3472
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Keyword(s):
A simple and precise method for measuring the efficiency of electrogenerated chemiluminescence (e.g.c.l.) in terms of photons/(Faradaic electron)(Φcoul) is described and applied to rubrene e.g.c.l. A symmetrical square wave potential having a frequency of 20–1000 Hz was employed to produce the e.g.c.l. The electrogenerated ion radicals were shown to be completely stable at these frequencies; consequently, Φcoul was determined in the absence of side reactions. Change of solvent from N,N-dimethylformamide (DMF) to equivolume benzene-DMF resulted in an increase in Φcoul from 0.67 to 1.21% at 20 Hz. Φcoul decreased with increasing frequency. Varying the electrolyte (tetra-n-butylammonium perchlorate, TBAP) concentration did not affect Φcoul.
Keyword(s):
1985 ◽
Vol 196
(2)
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pp. 423-427
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1984 ◽
Vol 175
(1-2)
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pp. 337-340
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Keyword(s):
1995 ◽
Vol 397
(1-2)
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pp. 19-26
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Keyword(s):
2009 ◽
Vol 57
(2)
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pp. 117-121
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2013 ◽
Vol 5
(4)
◽
pp. 1262-1268
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Keyword(s):