Integrating photodetection and display functions within a single electronic device holds significant application prospects.However,to date,most of them relied on complex device structures that involve photodetectors w...Integrating photodetection and display functions within a single electronic device holds significant application prospects.However,to date,most of them relied on complex device structures that involve photodetectors with readout circuits or integration with light-emitting diodes(LEDs).Here,we introduce infrared optical material—Er^(3+)doped fluoride glass—into conventional organic photodetectors,enabling new material options for advanced photodetection and imaging technologies.A novel compact system that achieves dual-mode of ultraviolet(UV)/infrared(IR)photodetection and visible display by introducing fluoride glass with excellent Stokes/anti-Stokes luminescence in an organic photodetector(OPD).This device exhibits an ultra-wideband response across multiple wavelengths,ranging from approximately 250 to 1550 nm.It presents impressive IR responsivity(∼8 mA/W with anti-Stokes luminescence)and UV photoresponse enhancement(from∼1.5 to∼3.5μA with Stokes luminescence).Additionally,it enables direct visible display for wavelengths of 1550,980,and 355 nm.The device can function effectively at high temperatures of up to 200℃for 30 min.Based on this device,a visible and secure optical communication process is successfully realized with UV(275 nm)-IR(1550 nm)communication bands.展开更多
基金supported by the National Key Research and Development Program of China(2021YFB3500901)the National Natural Science Foundation of China(52425308,92263106,and 62374035)+7 种基金the National Postdoctoral Researcher Program(GZC20232820)the China Postdoctoral Science Foundation(2024M753361)the China National Postdoctoral Program for Innovative Talents(BX20240087)the Chinese Academy of Sciences Basic and Cross Cutting Frontier Scientific Research Pilot Project(XDB0650301)the 2024 Shanghai Oriental Talent Program Youth Project(QNKJ2024012)Special Project of the Ministry of Industry and Information Technology(TC230H0AC/157)China Academy of Sciences Youth Interdisciplinary Team(JCTD-2022-09)the Youth Innovation Promotion Association,China Academy of Sciences(2022244).
文摘Integrating photodetection and display functions within a single electronic device holds significant application prospects.However,to date,most of them relied on complex device structures that involve photodetectors with readout circuits or integration with light-emitting diodes(LEDs).Here,we introduce infrared optical material—Er^(3+)doped fluoride glass—into conventional organic photodetectors,enabling new material options for advanced photodetection and imaging technologies.A novel compact system that achieves dual-mode of ultraviolet(UV)/infrared(IR)photodetection and visible display by introducing fluoride glass with excellent Stokes/anti-Stokes luminescence in an organic photodetector(OPD).This device exhibits an ultra-wideband response across multiple wavelengths,ranging from approximately 250 to 1550 nm.It presents impressive IR responsivity(∼8 mA/W with anti-Stokes luminescence)and UV photoresponse enhancement(from∼1.5 to∼3.5μA with Stokes luminescence).Additionally,it enables direct visible display for wavelengths of 1550,980,and 355 nm.The device can function effectively at high temperatures of up to 200℃for 30 min.Based on this device,a visible and secure optical communication process is successfully realized with UV(275 nm)-IR(1550 nm)communication bands.
