Publications by authors named "Baoxiang Chai"
Article Synopsis
- All-inorganic metal halide perovskite shows potential for highly efficient and thermally stable light-emitting diodes, but film quality needs improvement due to issues like low coverage and high trap density.
- The introduction of lead acetate (Pb(Ac)) into the precursor solution enhances perovskite film quality, resulting in larger surface coverage and fewer traps, which boosts photoluminescence intensity.
- This method also improves energy level alignment with the hole-injection layer, reducing the required turn-on voltage and increasing the external quantum efficiency of sky blue PeLEDs significantly.
Defects in perovskite films are one of the main factors that affect the efficiency and stability of halide perovskite solar cells (PSCs). Uncoordinated ions (such as Pb, I) act as trap states, causing the undesirable non-radiative recombination of photogenerated carriers. The formation of Lewis acid-base adducts in perovskite directly involves the crystallization process, which can effectively passivate defects.
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