Sean Li

Fe-mediated phase evolution and defect regulation in flexible Cu2Se films for enhanced thermoelectric transport

The monoclinic copper selenide (α-Cu2Se) is a promising thermoelectric (TE) material due to its ordered Cu sublattice and intrinsically low thermal conductivity for near-room-temperature applications. However, excessive Cu vacancies in α-Cu2Se lead to carrier overconcentration an...

Se4+-Doped Indium-Based Perovskites via NaCl-Driven Structural Transformation for Dynamic Luminescence Modulation in Multimodal Anti-counterfeiting and Encryption

Abstract The growing risks of counterfeiting and information security breaches have spurred the demand for high-security stimuli-responsive optical materials. However, many reported materials exhibit discontinuous luminescence switching or require harsh external stimuli. Herein,...