Marios Neophytou

TL;DR: This work demonstrates highly efficient and stable solar cells using a ternary approach, wherein two non-fullerene acceptors are combined with both a scalable and affordable donor polymer, poly(3-hexylthiophene) (P3HT), and a high-efficiency, low-bandgap polymer in a single-layer bulk-heterojunction device.

TL;DR: In this article, an energy distribution density-of-states DOS of defects in the effective band gap of organic bulk heterojunctions is determined by means of capacitance methods, which consists of calculating the junction capacitance derivative with respect to the angular frequency of the small voltage perturbation applied to thin film poly3hexylthiopheneP3HT6,6-phenyl C61-butyric acid methyl ester PCBM solar cells.

TL;DR: The effectiveness of the n‐doping strategy highlights electron transport in NFA‐based OPVs as being a key issue and results in balanced hole and electron mobilities, higher absorption coefficients and increased charge‐carrier density within the BHJ, while significantly extending the cells' shelf‐lifetime.

TL;DR: Efficient nonfullerene solar cells with quantum efficiencies approaching unity are reported with overlapping absorption bands of donor and acceptor that increases the photon absorption strength in the range from about 570 to 700 nm, thus, almost all incident photons are absorbed in the active layer.

TL;DR: Ultraviolet photoelectron spectroscopy measurements on the glass/indium-tin oxide/SnO2/methylammonium lead iodide/2,2',7,7'-tetrakis(N,N-di-p-methoxyphenylamine)-9,9'-spirobifluorene device stack indicate that extraction of photogenerated electrons is facilitated by a perfect alignment of the conduction bands at the SnO2