رايحه باقرزاده خورسندي

Photosystem I is an integral membrane protein complex acts in the Z-scheme of photosynthesis. The natural abundance of PS I, combined with its impressive functionality such as an internal quantum efficiency approaching unity and nanoscale dimension, have pro‎mp‎ted researchers all over the world to investigate its application to new generation of solar cell devices. This study extracted PS I from fresh spinach and use it as a photodiode in a new structure for solid-state solar cell, which consists of n-silicon/PSI/MWCNT/AU. Silicon has been used in this study to be an excellent platform for PSI by its valence band and conductive band (-4.3 eV, -5 eV) roughly align with P_700and F_B redox center of PSI (-4.1 eV, -5.1 eV). Also, MWCNT has been chosen to complete this coordination as a hole absorbent material. This processing strategy exhibits significant improvement in photocurrent density which is -9.2 mA and enhancement in the efficiency which is 0.89%. This efficiency is almost 100 times more than P-doped silicon based which has investigated in 2014 by a group from Vanderbilt University

فتوسيستم 1 سلول خورشيدي نانولوله هاي كربني

photosystem I solar cells carbon nanotubes