High-performance photovoltaic perovskite layers fabricated through intramolecular exchange
2015; American Association for the Advancement of Science; Volume: 348; Issue: 6240 Linguagem: Inglês
10.1126/science.aaa9272
ISSN1095-9203
AutoresWoon Seok Yang, Jun Hong Noh, Nam Joong Jeon, Young Chan Kim, Seungchan Ryu, Jangwon Seo, Sang Il Seok,
Tópico(s)Quantum Dots Synthesis And Properties
ResumoTaking in more sun Most efforts to grow superior films of organic-inorganic perovskites for solar cells have focused on methylammonium lead iodide (MAPbI 3 ). However, formamidinium lead iodide (FAPbI 3 ) has a broader solar absorption spectrum that could ultimately lead to better performance. Yang et al. grew high-quality FAPbI 3 films by starting with a film of lead iodide and dimethylsulfoxide (DMSO) and then exchanging the DMSO with formamidinium iodide. Their best devices achieved power conversion efficiencies exceeding 20%. Science , this issue p. 1234
Referência(s)