biostudies-literatureZhao KChinese Academy of SciencesNational Key R&D Program of China“Thousands Talents” Program2015 Annual Beijing TalentsExternal Cooperation Program of BICNational Natural Science Foundation of China208-216https://www.ebi.ac.uk/biostudies/studies/S-EPMC6137385biostudies-literatureUnknown3The pyro-phototronic effect has been utilized to modulate photoexcited carriers, to enhance the photocurrent in semiconducting nanomaterials. However, most of these materials have low pyroelectric performances. Using radially polarized ferroelectric BaTiO₃ materials with a pyroelectric coefficient of about 16 nC/cm²K, we report a dramatic photocurrent enhancement due to ferro-pyro-phototronic effect. The fabricated device enables a fast sensing of 365-nm light illumination with a response time of 0.5 s at the rising edge, where the output current-time curve displays a sharp peak followed by a stable plateau. By applying a heating temperature variation, the output current peak can be enhanced by more than 30 times under a light intensity of 0.6 mW/cm². MoreoiScienceEnhancing Photocurrent of Radially Polarized Ferroelectric BaTiO₃ Materials by Ferro-Pyro-Phototronic Effect.PMC61373852015000021223ZK322016YFA0202701121411KYS8201500285147205561404034Ouyang BYang YZhao KfalseEnhancing Photocurrent of Radially Polarized Ferroelectric BaTiO₃ Materials by Ferro-Pyro-Phototronic Effect.The pyro-phototronic effect has been utilized to modulate photoexcited carriers, to enhance the photocurrent in semiconducting nanomaterials. However, most of these materials have low pyroelectric performances. Using radially polarized ferroelectric BaTiO₃ materials with a pyroelectric coefficient of about 16 nC/cm²K, we report a dramatic photocurrent enhancement due to ferro-pyro-phototronic effect. The fabricated device enables a fast sensing of 365-nm light illumination with a response time of 0.5 s at the rising edge, where the output current-time curve displays a sharp peak followed by a stable plateau. By applying a heating temperature variation, the output current peak can be enhanced by more than 30 times under a light intensity of 0.6 mW/cm². Moreo2018-01-01T00:00:00Z2018 May2025-04-04T23:35:47.405Z2019-03-27T00:07:27ZS-EPMC61373853042832010.1016/j.isci.2018.04.016