conducted in an aqueous nonhalide lead precursor solution, which was followed by that in a
(CH3) 3NI and (CH3) 3NCl mixed solution as part of a facile, cost-effective, and
environmentally benign manufacturing process for high-efficiency perovskite solar cells. The
(CH3) 3NPbI3− xClx perovskite layers deposited via the proposed process were constructed
with a Cl/I ratio below∼ 3%, indicating the partial insertion of Cl into the (CH3) 3NPbI3 …