Low-temperature, simple and efficient preparation of perovskite solar cells using Lewis bases urea and thiourea as additives: stimulating large grain growth and providing a PCE up to 18.8.

ABSTRACT: We demonstrated that two Lewis bases - urea and thiourea - acted as efficient additives for CH₃NH₃(MA)PbI_3-x Cl _x and MAPbI₃ perovskite solar cells (PSCs) and observed a significant increase in PCE for the MAPbI₃ devices in the presence of 1% urea with a remarkable PCE of 18.8% using an extremely low annealing temperature (85 °C).

SUBMITTER: Hsieh CM 

PROVIDER: S-EPMC9080687 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature