Title :
Integrated Solar Energy Harvesting and Storage
Author :
Guilar, Nathaniel ; Chen, Albert ; Kleeburg, Travis ; Amirtharajah, Rajeevan
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Davis, CA
Abstract :
To explore integrated solar energy harvesting as a power source for low power systems such as wireless sensor nodes, an array of energy scavenging photodiodes based on a passive-pixel architecture for imagers and have been fabricated together with storage capacitors implemented using on-chip interconnect in a 0.35 mum CMOS logic process. Integrated vertical plate capacitors enable dense energy storage without limiting optical efficiency. Measurements show 225 muW/mm2 output power generated by a light intensity of 20k LUX
Keywords :
CMOS logic circuits; capacitors; low-power electronics; photodiodes; solar energy conversion; solar power; wireless sensor networks; 0.35 micron; CMOS logic process; energy scavenging photodiodes; integrated solar energy harvesting; low power systems; on-chip interconnect; solar energy storage; storage capacitors; wireless sensor nodes; CMOS image sensors; Capacitors; Energy storage; Image storage; Logic arrays; Power generation; Power system interconnection; Sensor arrays; Solar energy; Wireless sensor networks; Design; Energy Harvesting; Experimentation; Low Power; Measurement; Photodiode;
Conference_Titel :
Low Power Electronics and Design, 2006. ISLPED'06. Proceedings of the 2006 International Symposium on
Conference_Location :
Tegernsee
Print_ISBN :
1-59593-462-6
DOI :
10.1109/LPE.2006.4271801
