Biomimetic Conical Microhole Architecture Enabling 18.4%-Efficient Silicon Solar Cells with Superior Durability.

Three-dimensional structured silicon solar cells have demonstrated remarkable potential for enhanced light absorption, yet their practical implementation remains limited by mechanical fragility. While microwire architectures offer superior optical properties through effective light scattering and radial junction formation, their high aspect ratio creates significant mechanical stress at the wire-substrate interface, leading to structural failure under physical strain. Here, we present conically etched microhole arrays (CEMA) that fundamentally address this challenge by inverting the conventional microwire concept while maintaining its optical and electrical advantages.

Radiologic and clinical outcomes with special reference to tumor involvement pattern after stent placement for malignant bronchial obstructions.

Background: Location of tumor within the tracheobronchial tree as well as its severity can affect the clinical outcome of patients who undergo airway stent placement.

Purpose: To evaluate radiologic and clinical outcome, including survival data, with special reference to proposed tumor involvement pattern, in patients with malignant bronchial strictures.

Material And Methods: A total of 35 patients who underwent stent placement for malignant bronchial strictures were enrolled over a 9-year period.