Synergistic improvements in stability and performance of lead iodide perovskite solar cells incorporating salt additives

• Published in: Journal of materials chemistry. A, Materials for energy and sustainability Vol. 4; no. 5; pp. 1591 - 1597
• Main Authors: Boopathi, Karunakara Moorthy, Mohan, Ramesh, Huang, Tzu-Yen, Budiawan, Widhya, Lin, Ming-Yi, Lee, Chih-Hao, Ho, Kuo-Chuan, Chu, Chih-Wei
• Format: Journal Article
• Language: English
• Published: 01.01.2016
• Subjects: Additives; Alkali metals; Charge; crystal structure; crystallites; Devices; dissociation; Halides; ions; lead; Morphology; Nanostructure; Perovskites; photoluminescence; small cereal grains; solar cells

The main issues in planar perovskite solar cells are the coverage and crystallinity of the perovskite film on the PEDOT:PSS layer. To enhance these features, we introduced alkali metal halides (salts) as additives into the perovskite precursor solution used in a two-step preparation method. These al...