Ultralight High-Efficiency Flexible InCaP/(In)GaAs Tandem Solar Cells on Plastic

摘要

Flexible solar cells are envisioned to open up a myriad of possibilities for enabling new applications in consumer electronics and space satellites. Organic and amorphous semiconductors hold a great promise for realizing bendable and light-weight solar cells, largely due to their fairly strong light absorption properties, process temperature compatibility with flexible substrates and potentially inexpensive processing cost. However, the poor minority carrier lifetime in these materials, inherent to their highly disordered and defective crystalline structure, inhibit their use for making high efficiency and reliable solar cells. This limitation becomes more pronounced in applications with stringent specifications in terms of the total area and weight of the photovoltaic (PV) module.