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[Perspective] How hybrid perovskites get their groove

Science

Despite modest charge carrier mobilities (3) and a known presence of defect sites (4), polycrystalline HOIP films prepared under comparatively crude conditions exhibit minority carrier lifetimes and diffusion lengths comparable with those of high-purity single-crystal GaAs (3). What makes HOIPs so special? On page 1409 of this issue, Zhu et al. (5) argue that the answer may lie in the rotational motion of the dipolar organic cations in the perovskite lattice. These motions seem to screen charge carriers from defects and other scattering potentials, much like ions screen electric fields in solution.


Is 'Bold And Beautiful' On Today? CBS Delays Season 31, Episode 69

International Business Times

Fans of the ongoing drama between the Forrester, Spencer, Logan, Spectra and Avant families will need to wait to find out how things will go for the families following their Christmas celebrations, as the newest episode of "The Bold and the Beautiful" will not air on Christmas Day.


Old-School R&B Group the O'Jays Get Into a Political Groove

U.S. News

While known for their funky, soulful songs, The O'Jays often tackled social issues, as with "For the Love of Money" and "Put Your Hands Together," in which they urged "praying for all the people who are sleeping in the street." They had a hard time getting radio stations to play "Rich Get Richer," which argued: "The people who live on the hill/ Don't have time for the ghetto."


Microsoft gives Groove for iOS and Android a facelift

Engadget

Microsoft's Groove apps for iOS and Android weren't quite as good as the Windows version, but this update was designed to change that. The company has given its music apps for both platforms a facelift that makes them look more like their Windows counterpart. It also bundled a handful of new features with it. The apps now have an Explore view listing the most popular songs, and they now take on a higher resolution when scaled up on big phones. Microsoft also promises faster downloads for offline playbacks and various improvements.


Microsoft Groove builds smart music playlists around your tastes

Engadget

Smart music discovery playlists are all the rage right now (just ask Spotify), and Microsoft knows it. It recently introduced a Your Groove feature to Groove Music that automatically creates playlists suited to your taste. It'll generate track listings for your existing OneDrive music collection based on your listening habits, moods and artist activity, so you can revisit a favorite band when it's on tour. However, the real party starts when you have a Music Pass -- Groove will throw new songs into the playlists to expand your horizons.