Promise of commercialization: Carbon materials for low-cost perovskite solar cells

Cai Yu^{1, 2}, Liang Lusheng², Gao Peng^{2, †}

(color online) Schematic illustrations of (a) the perovskite layer deposition procedure and (b) the prepared carbon electrode-based perovskite solar cells. (c) A cross-sectional SEM image of the prepared device. (d) An energy diagram of the materials used in this work. Reprinted from Ref. [89].