TEMPERATURE EFFECTS 



ILLUMINATION -200 FOOT CANDLES-2700 K 



ILLUMINATION -20 FOOT CANDLES-2700 K 



10 20 30 40 50 



TEMPERATURE IN DEGREES CENTIGRADE 



Fig. 9- Temperature dependence. 



Fig. 10. A model 596 cell. 



Exposed cells are subject to attack by 

 moisture and corrosive gases. For most precision 

 measurements encased cells are used. Both her- 

 metically sealed metal-glass cases and non- 

 hermetic bakelite cases have "been developed. 

 Hermetically sealed cells have excellent sta- 

 bility over a period of several years. A model 

 596 cell, encased in a bakelite case, is shown 

 in Fig. 10. 



LAKSHMANAN, T. K., P-N junctions between 

 semiconductors having different energy 

 gaps, Proc . , Inst . Radio Eng . , kQ(9) > 

 I6k6, I960. 



LAKSHMAWAN, T. K. , Electrochemical Society 

 Meeting, Boston, Mass., September 1962. 



ACKNOWLEDGMENT 



The author is indebted to Walter Slegesky for 

 his assistance in compiling the data for this 

 paper . 



REFERENCES 



1. ZWORYKIN, V K. and E. G. RAMBERG, Photo- 

 electricity and Its Application , John Wiley 

 & Sons, New York, N Y., 1-^, 19^9- 



2. HOLMES, R W. and J. M. SNODGRASS, A multiple 

 detector irradiance meter and electronic 

 depth- sensing unit for use in biological 

 oceanography, J. Mar . Res ., 19(l), hO, I96I. 



3. LaFOND, E. C, Arctic oceanography by 

 submarines, Proc., U. s_. Naval Inst . , 86 , 

 90, September i960. 



k. PRESTON, J. S., Constitution and mechanism 

 of the selenium rectifier photocell, Proc . , 

 Roy . Soe . of London, A, 202, kk9-k66, 1950. 



187 



