Guo, R., Gong, W., Song, E., Zhang, C., Wang, Y., Ming, H., Chen, Z., Peng, Z., He, Z., Zhang, Q. (2026). High‐Quality Photoplethysmography Signal Enabled by Narrowband Red Phosphor Converted Light‐Emitting Diodes for Accurate Blood‐Pressure Monitoring. Advanced Materials. https://doi.org/10.1002/adma.202521971