Perovskite-polymer composite cross-linker approach for highly-stable and efficient perovskite solar cells
California NanoSystems Institute · University of California, Los Angeles · +2 more institutions
Abstract
Manipulation of grain boundaries in polycrystalline perovskite is an essential consideration for both the optoelectronic properties and environmental stability of solar cells as the solution-processing of perovskite films inevitably introduces many defects at grain boundaries. Though small molecule-based additives have proven to be effective defect passivating agents, their high volatility and diffusivity cannot render perovskite films robust enough against harsh environments. Here we suggest design rules for effective molecules by considering their molecular structure. From these, we introduce a strategy to form macromolecular intermediate phases using long chain polymers, which leads to the formation of a…
Citation impact
- FWCI
- 37.53
- Percentile
- 100%
- References
- 57
Authors
14- THTae-Hee HanCorresponding
California NanoSystems Institute, University of California, Los Angeles
- JLJin‐Wook Lee
California NanoSystems Institute, University of California, Los Angeles
- CCChungseok Choi
California NanoSystems Institute, University of California, Los Angeles
- STShaun Tan
California NanoSystems Institute, University of California, Los Angeles
- CLChangsoo Lee
Korea Advanced Institute of Science and Technology
Topics & keywords
- Perovskite (structure)
- Materials science
- Grain boundary
- Polymer
- Crystallite
- Grain size
- Linker
- Chemical engineering
Funding
- NSNational Science FoundationAwards: N00014-17-1-2484, 1509955, ECCS-EPMD-1509955, FA9550-15-1-0333
- OOOffice of Naval ResearchAwards: N00014-17-1-2484, N00014-17-1, FA9550-15-1-0333, FA9550, N00014
- DODivision of Electrical, Communications and Cyber SystemsAward: ECCS-EPMD-1509955
- AFAir Force Office of Scientific ResearchAwards: FA9550-, N00014-17-1-2484, FA9550-15-1-0333, FA9550