Researchers in China have developed an inverted perovskite solar cell based on a hole transport layer (HTL) with a self-assembled monolayer (SAM) aimed at reducing passivating defects and ...

One finalist is an accessibility-oriented app called Oko. Apple has recognized the app for “making street-crossing safer and more accessible to all.” On its website, Oko’s developers explain ...

European super middleweight champion Kevin Lele Sadjo of France is set to take on Ghana’s Habib Ahmed on December 7 in Malabo, Equatorial Guinea on the undercard of the WBC welterweight ...

BEST OF 2019: Steeped in strange symbology, the breath-taking 'inverted tower', or initiation well, found at the heart of Sintra's Quinta da Regaleira celebrates Portugal's unique historical ...