Developing low cost and stable metal electrode is crucial for mass production of perovskite solar cells (PSCs). As an earth-abundant element, Cu becomes an alternative candidate to replace noble metal electrodes such as Au and Ag, due to its comparable physiochemical properties with simultaneously good stability and low cost. However, the undesirable band alignment associated with the device architecture impedes the exploration of efficient Cu-based n-i-p PSCs. To solve this problem, researchers in China investigated the energy-level difference at different interface and offered potential path forward to achieve more efficient n-i-p PSCs with Cu electrode.
- Energy Material Advances
- National Natural Science Foundation of China, National Key Research and Development Program of China, Tencent Foundation through the XPLORER PRIZE