Here, a synthetic strategy applied to a range of quasi-2D perovskite systems is reported, that significantly narrows the quantum well dispersion. This approach will serve in producing new materials widening the color gamut of next-generation displays.
Available from Advanced Science (open access)
Herein, we show that heating a SnO2 colloidal solution results in compact films with increased surface coverage. The improved surface coverage induces larger perovskite grains resulting in efficient and stable solar cells.
Available from Solar RRL
Here we report a fast and reproducible doping method that involves exposing conjugated organic molecules with carbon dioxide under ultraviolet light. This method greatly decreases fabrication time while increasing device stability.
Available from Nature
Here, we report perovskite solar cells having exceptionally high fill factors of 85% and enhanced open-circuit voltage without sacrificing short-circuit current through a polymer-capped solvent-annealing process assisted by a hot air blower. Our results provide a pathway to increase the device efficiency and stability of perovskite solar cells.
Available from ACS Applied Energy Materials
Here, non-radiative voltage losses are analyzed using external quantum efficiency and electroluminescence spectra.
Available from the Journal of Physical Chemistry Letters
A new synthetic route to prepare an alkylated indacenodithieno[3,2-b]thiophene-based nonfullerene acceptor (C8-ITIC) is reported. This new acceptor, C8-ITIC, exhibits a reduction in the optical band gap, higher absorptivity, and an increased propensity to crystallize.
Available from Advanced Materials (open access)
Here we quantitatively study the role of the common fullerene derivative, PCBM, in limiting the stability of benchmark organic solar cells, showing that a minor fraction (<1%) of photo-oxidised PCBM, induced by short exposure to either solar or ambient laboratory lighting conditions in air, is sufficient to compromise device performance severely.
Available from Energy & Environmental Science
Here we demonstrate 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, P3HT, and a high-efficiency, low-band gap polymer in a single-layer bulk-heterojunction device.
Available from Nature Materials
A novel small molecule, FBR, bearing 3-ethylrhodanine flanking groups was synthesized as a nonfullerene electron acceptor for solution-processed bulk heterojunction organic photovoltaics.
Available from the Journal of the American Chemical Society