Can a solar energy harvesting system use an on-chip power source?
An on-chip power source is implemented with the optimized solar cells and the proposed energy harvesting system. Measurement results demonstrate that the proposed on-chip power source can deliver an output voltage of approximately 1 V, with a maximum power conversion efficiency of 10.20% from end to end.
What is an on-chip solar cell?
This on-chip solar cell is used for on-chip energy harvesting, achieving a maximum end-to-end conversion efficiency of 10.20%, referring to the overall efficiency from incident light power to load power output.
How are enhanced on-Chip Solar Cells fabricated?
The enhanced on-chip solar cells and the corresponding energy harvesting system, forming the on-chip power source, were fabricated at a wafer foundry. Both the optimized on-chip solar cells and the on-chip power source were subsequently tested under illumination from a solar simulator.
Can on-chip integrated energy harvesting systems collect solar energy in microsensors?
The application of on-chip integrated energy harvesting systems to collect solar energy in microsensors has been successfully implemented in various studies 11, 12. The proposed on-chip power source comprises an energy harvesting system and solar cells.
How efficient is a conventional on-chip solar cell?
The conventional unsegmented on-chip solar cell has a maximum conversion efficiency of 21.95%. This means the proposed design shows a 17.49% improvement over the conventional design. The comparisons with other works in the literature are summarized in Table 3.
Can on-chip solar cells improve photoelectric conversion efficiency?
Enhancing the photoelectric conversion efficiency of on-chip solar cells is crucial for advancing solar energy harvesting in self-powered smart microsensors for Internet of Things applications. Here we show that adopting a center electrode (CE) layout instead of a ring electrode (RE) effectively reduces the shadowing effect of surface electrodes.
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