device efficiency

Review by Wang Jianpu & Huang Wei from Nanjing University of Technology: Tin Halide Perovskite Light Emitting Diodes

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Review by Wang Jianpu & Huang Wei from Nanjing University of Technology: Tin Halide Perovskite Light Emitting Diodes

In recent years, tin halide PeLEDs have made significant breakthroughs in device efficiency, spectral tunability, and long-term operational stability. However, the easy oxidation of Sn²⁺ and rapid crystallization kinetics severely restrict their further development. The oxidation of Sn²⁺ and the rapid crystallization of the perovskite layer can lead to p-type doping characteristics and high defect … Read more

Optimizing Wide Bandgap Perovskite Crystallization with Novel Additives to Enhance Component Performance

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Optimizing Wide Bandgap Perovskite Crystallization with Novel Additives to Enhance Component Performance

Core Innovation Summary Innovation: By introducing Piracetam as a crystal modifier, we optimize the nucleation and grain boundary structure of wide bandgap perovskite (WBG, 1.77 eV), achieving large grain sizes (1 μm), preferred orientation ((110) crystal plane), and one-dimensional needle-like structures (1D (Pi)PbI₃), significantly enhancing device efficiency and stability. Implementation Method: Molecular Regulation: Piracetam binds … Read more