Read article: Triplet control prevents ‘lasing death’ in perovskite lasers
Suppressing long-lived triplet excitons enables devices made from quasi-2D organic–inorganic material to continue lasing for over an hour
Read article: Thermal diodes bridge the gap
One-way water-vapour device could cool down aircraft components and computer chips
Read article: Spin valve uses coupled quantum dots and tiny magnetic fields
Electron spin current is generated without the need for large external magnetic fields
Read article: Metasurface laser produces super-twisted light
New device could act as an “optical spanner” or wrench to control physical objects
Read article: Nano-optomechanical resonator detects low-frequency bacteria vibrations
Spectrometry technique offers a new way to classify biological particles
Read article: Optical phased array steers blue light
New device could significantly reduce the size of the light projection components employed in many emerging applications
Read article: Non-volatile nano-relay breaks records
New device could find use in digital processors that operate in harsh conditions and require electronics with integrated data storage
Read article: Novel photovoltaics generate electrical power from thermal sources
Devices based on photon-assisted tunnelling could harvest energy from nuclear power stations, chemical manufacturing facilities and other sources of waste heat
Read article: Transparent graphene photodetectors make advanced 3D camera
New device might find applications in bioimaging, driverless cars and robotics
Read article: Colloidal quantum dot photodetectors see further in the infrared
Devices based on lead sulphide work in the mid- to long-wave IR range
