Flexible PVDF-TrFE pyroelectric sensor driven by polysilicon thin film transistor fabricated on ultra-thin polyimide substrate

Impact of crystallization on ferro-, piezo- and pyro-electric characteristics in thin film P(VDF–TrFE)

“…Another polar phase (d-phase) with a very good ferroelectric properties exists but it is very difficult to obtain [4]. The P(VDF-TrFE) is widely used as active layer in devices such as pressure sensors [5], ferroelectric memories [6], pyroelectric sensors [7,8], and electro-caloric devices [9]. The monomer molecular ratio between the VDF and the TrFe is a key factor for the formation of the b polar phase.…”

A flexible pressure-sensitive array based on soft substrate

“…The CSA meets the requirements of real-time detection. A c c e p t e d M a n u s c r i p t 8 The pressure sensitivity rubber CSA displays piezoresistive behavior under loading and unloading. Several piezoresistive mechanisms about pressure sensitivity composite were put forward by predecessors [28][29][30] .…”

“…Recently, several flexible pressure-sensitive materials and sensors have been reported [1][2][3][4][5][6][7][8][9][10][11] . The sensing mechanisms include capacitive sensing [1][2][3], field-effect transistors [4][5][6] , piezoelectric-sensing [7][8] , and piezoresistive-sensing [9][10][11] .…”

“…The sensing mechanisms include capacitive sensing [1][2][3], field-effect transistors [4][5][6] , piezoelectric-sensing [7][8] , and piezoresistive-sensing [9][10][11] . The pressure sensors based on piezoresistive-sensing mechanism have attracted much attention owing to their feasible preparation, low cost, and easy signal collection [12] .…”

Analytical modeling of piezoelectric charge gated thin film transistor for force sensing and energy harvesting

“…Pecora et.al [1] created a novel pyroelectric sensor which is composed of polysilicon thin film transistor and ultrathin polyimide substrate. We are focusing on the piezoelectric properties of the PVDF film.…”