The state of the art of two-color focal plane arrays (FPAs) are two or three terminal photo detector pixels integrated with electronic readout circuits (ROICs). However, a multicolor (> 2) photodetector pixel requires many more terminals, making it very difficult, if not impossible, to integrate multicolor pixel arrays to ROICs due to the increase...

Currently, Si wafers and related wafer processing accounts for seventy-five percent of the cost of producing conventional solar panels. With a potential concentration ratio of 500 – 1000 and double the efficiency over conventional single junction cells, the use of concentrator multi-junction solar cell technologies will dramatically reduce the fraction...