Boosting the power conversion efficiency of perovskite solar cells using self-organized polymeric hole extraction layers with high work function.
basic_science · Level V
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- Record sourced from PubMed, PMID 25123592.
- Also identified by DOI 10.1002/adma.201401775.
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Abstract
A self-organized hole extraction layer (SOHEL) with high work function (WF) is designed for energy level alignment with the ionization potential level of CH3 NH3 PbI3 . The SOHEL increases the built-in potential, photocurrent, and power conversion efficiency (PCE) of CH3 NH3 PbI3 perovskite solar cells. Thus, interface engineering of the positive electrode of solution-processed planar heterojunction solar cells using a high-WF SOHEL is a very effective way to achieve high device efficiency (PCE = 11.7% on glass).