Multichip module photovoltaic miniarrays

In this work a novel concept of photovoltaic mini array assembly is described based on a flip-chip multichip module technology. A number of arrays composed of 15 series-connected 2 mm² c-Si photovoltaic cells have been fabricated, achieving a packaging density of 40 cells/cm². Measurements of the dark I-V characteristic confirmed that the resistive losses of the approach are small and do not degrade the electrical characteristics of the array. Nearly 0.5 mW/cm ² delivered density power, and 7 V in open circuit conditions were typically measured under normalized solar spectrum (AM1.5 100 mW/cm ²), and around 6.3 mW/cm² and 8.5 V using a 150 W commercial lamp placed at 5 cm distance from the panel