Hyperspectral imaging is a technique that integrates multiple spectral bands and image information. Its applications range from improving the accuracy of cancer diagnosis to testing the quality of products. Here, we introduce a double-filtering technique that provides high-resolution diagnostic histological images within minutes. The hyperspectral microscopic imaging system is built based on an acousto-optic tunable filter (AOTF). The optimized system is analyzed from the perspective of spectrum and imaging. The spectral resolution can be improved by 37.08% to 59.95% in the visible light range. The side lobe is obviously inhibited and the purity of spectrum is improved. Furthermore, the example of hyperspectral microscopic imaging is demonstrated with unstained gastric cancer tissue sections to assess the ability of the system in terms of its spectral performances and image quality. The microscopic imaging results of single filtering optical path system and single crystal double filtering optical path system are compared. In general, the optimized double filtering system achieves excellent performance in bandwidth compression and side lobe suppression, especially the first application of hyperspectral microscopy combined with microscope in the visible light range.

This research focuses on the fabrication and optimization of large-area PM6:D18-CL:Y6 ternary organic solar cells, with a particular emphasis on film thickness, annealing temperature, and the connection configuration’s impact on device performance. The experimental findings indicate that an optimal film thickness of approximately 105 nm fosters the formation of a well-interconnected network, reducing defects and significantly improving both the fill factor, which reaches 46.2%, and the power conversion efficiency (PCE) at 7.2%. An annealing temperature of 110 °C stands out as the ideal condition, resulting in the highest PCE of 8.15%. Notably, excessively high annealing temperatures lead to material aggregation, compromising device performance. Regarding the connection configurations, the study demonstrates that the 5-series 4-parallel arrangement surpasses traditional setups, achieving an impressive output power of 0.11 W. In conclusion, the meticulous control of the film thickness and annealing temperature is paramount for achieving a high PCE in large-area PM6:D18-CL:Y6 ternary organic solar cells. The 5-series 4-parallel configuration exhibits considerable promise for an enhanced power output, offering valuable insights into the development and industrialization of large-area organic solar cells.