“…[14,15] Properties such as high thermal conductivity, nontoxicity and biocompatibility, high optical transparency, high surface area, and easy surface tunability [16][17][18] make NDs suitable for a wide range of applications including biomedicine, [19,20] water cleaning processes, [21,22] energy storage devices, [23][24][25][26] thin-film electronics, [27,28] and even photovoltaic devices. [29,30] A thorough study of the mechanism of charge transfer to and between nanodiamonds in sensors, energy harvesting, and other applications has been a subject to a number of prior experimental and theoretical studies, which indicated that nanodiamonds can act both as electron donors and acceptors, as well as charge separation interface, including suitable energetic levels. [17,31] In the present work, we investigate the use of such effects in real complete OSC devices.…”