A new stable zero-dimensional hybrid piezoelectric material, [Me-V]₃-Mn(SCN)₅, is reported, which can serve as eco-friendly materials for energy harvesting and flexible sensors. The device assembled with this hybrid material shows great piezoelectric energy harvesting properties with an output voltage of 18.49 V and a power density of 7.88 W cm⁻² under an applied force of only 0.03 MPa. Meanwhile, it is demonstrated to exhibit excellent mechanical durability under operation for 5500 cycles and high environmental stability over 60 days. The device also shows good sensitivity in monitoring human body motions, including finger tapping, wrist and elbow bending, and foot stepping (see the article on page 1854).

A new stable zero-dimensional hybrid piezoelectric material, [Me-V]₃-Mn(SCN)₅, is reported, which can serve as eco-friendly materials for energy harvesting and flexible sensors. The device assembled with this hybrid material shows great piezoelectric energy harvesting properties with an output voltage of 18.49 V and a power density of 7.88 W cm⁻² under an applied force of only 0.03 MPa. Meanwhile, it is demonstrated to exhibit excellent mechanical durability under operation for 5500 cycles and high environmental stability over 60 days. The device also shows good sensitivity in monitoring human body motions, including finger tapping, wrist and elbow bending, and foot stepping (see the article on page 1854).