MELVIN CALVIN 



337 



(/) 



>- 



< 

 a: 



CD 



< 



1 1 1 1 1 1 



ODECAY OF PHOTOCONDUCTIVITY AT 25° C 



A DECAY OF LIGHT INDUCED POLARIZATION 25°C 



• RISE OF ESR AT 25°C 



XDECAY OF PHOTOCONDUCTIVITY -lOO^C 



100 



20 60 



TIME -SECONDS 

 Fig. 15. Semilog plot of time dependence of photoconductivity, liglit-induced elec- 

 tron spin resonance (ESR) and light-induced polarization in doped phthalocyanine. 



I. Pc + 0-Q 



DARK 



» Pc + 0-Q" 



2. PC + o-S-^^^i^gg^^ Pc"" + q-Q- 



DARK 



3. PC -H 0-Q \ ^V(-^OOOA), Pc" , g_Q 



DARK 



4. Pc + Pc"^ _DARK^ 2 Pc 



Fig. 16. Reactions of a solid matrix of l*c with a film of o-Q. Pc, plithalocyanine; 



o-Q, o-chloranil. 



