Yadav, Praveen Kumar, Rishi Pal Chahal, and Aman Pal Singh. “Efficiency Enhancement of GaAs Thermophotovoltaic Cells System Using Integrated TiO2 SiO2 1D Photonic Crystal Distributed Bragg Reflectors”. Photonics Letters of Poland 17, no. 4 (December 31, 2025): 76–78. Accessed January 14, 2026. https://www.photonics.pl/PLP/index.php/letters/article/view/17-25.