Measuring Optical Gain in Lead Halide Perovskites Using the Variable Stripe Length Method: Lessons and Challenges. Iranian Journal of Kideny Diseases [Internet]. 2025 Feb. 10 [cited 2026 Jun. 5];19(1):37-59. Available from: https://ijkd.net/index.php/Iranian-Journal-of-Kideny-Diseas/article/view/73