Triple-junction solar cells with improved carrier and photon management - Kerem Artuk; Deniz Turkay; Austin Kuba; Stefan Riemelmoser; Julian A. Steele; Julien Hurni; Joël Spitznagel; Hugo Quest; Michele De Bastiani; Jun Zhao; Jonas Diekmann; Chiara Ongaro; et al. (Nature, 2026)