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- Title
The Characteristics of Perovskite Solar Cells Fabricated Using DMF and DMSO/GBL Solvents.
- Authors
Manjunatha, S. N.; Chu, Yi-Xian; Jeng, Ming-Jer; Chang, Liann-Be
- Abstract
Organic solar cells are used in low-cost solar energy applications. Recently, organo-lead halide perovskite solar cells have attracted considerable interest. Low-temperature spin-coating is the simplest method to fabricate the low-cost solar cells; however, forming a continuous perovskite film by spin coating a precursor solution of lead iodide (PbI2) and methylammonium iodide (CH3NH3I) is challenging. This work investigated the characteristics of perovskite thin film, prepared using dimethylformamide (DMF) and dimethyl sulfoxide (DMSO)/γ-butyrolactone (GBL) solvents in the direct mixing of PbI2 and CH3NH3I. Perovskite films prepared using the DMSO/GBL solvent had greater crystallinity and compactness than those using the DMF solvent. Cell performance was improved by a perovskite absorber using the DMSO/GBL solvent to a power conversion efficiency of 8.87%, an open-circuit voltage of 0.82 V, a current density of 17.13 mA/cm2, and a fill factor of 63.01%.
- Subjects
PEROVSKITE; SOLAR cells; SOLVENTS; OPEN-circuit voltage; SOLAR energy; SPIN coating; DIMETHYL sulfoxide
- Publication
Journal of Electronic Materials, 2020, Vol 49, Issue 11, p6823
- ISSN
0361-5235
- Publication type
Article
- DOI
10.1007/s11664-020-08283-8