Key parameters of commercial silicon solar cells with rear metallization - A. V. Sachenko; V. P. Kostylyov; V. M. Vlasyuk; R. M. Korkishko; I. O. Sokolovskyi; V. V. Chernenko; B. F. Dvernikov; O. A. Serba; M. A. Evstigneev (Semiconductor Physics, Quantum Electronics and Optoelectronics, 2019)