Smart windows, whose transparency can be tuned dynamically and even reversibly changed from transparent to opaque, have been the focus of research since the 1970s [1]. For one thing, smart windows can control the tran...Smart windows, whose transparency can be tuned dynamically and even reversibly changed from transparent to opaque, have been the focus of research since the 1970s [1]. For one thing, smart windows can control the transmission of sunlight into the building,achieving energy savings by balancing the cooling load with the energy requirements of lighting and heating. For another, opaque glass walls act like curtains to protect privacy.展开更多
可见光和近红外光双波段光电探测器因其高选择性和灵活多功能,在信号检测、生物成像、光通信和安全监控方面具有应用潜力.本文报道了一种基于钙钛矿/有机异质结结构的双波段探测器,实现了可见光波段和近红外波段具有电压可调制的光电响...可见光和近红外光双波段光电探测器因其高选择性和灵活多功能,在信号检测、生物成像、光通信和安全监控方面具有应用潜力.本文报道了一种基于钙钛矿/有机异质结结构的双波段探测器,实现了可见光波段和近红外波段具有电压可调制的光电响应.即正向偏压下探测器仅对可见光具有光电响应,反向偏压下又仅对近红外光具有光电响应.探测器包括1个吸收可见光(500~810 nm)的钙钛矿层和1个用于近红外光吸收(810~950 nm)的有机层,吸光层顶部和底部的N型载流子传输层则实现了对钙钛矿/有机层中光生载流子的电压可控传输,进而实现可电压调制的可见光/红外光响应.该器件在可见光和近红外波段的峰值响应率分别为93.5和102.2 m A/W,对近红外光的探测度达到了1012 Jones,并在可见光模式和近红外模式下都具有宽动态范围(>120 d B).本文同时实现了这种可电压调制的双波段探测器在可见光和近红外成像中的应用.展开更多
基金financially supported by the National Key Research and Development Program of China(2017YFA0206600)the National Natural Science Foundation of China(21761132001,91633301,51573057,and 51903095)+1 种基金the Fundamental Research Funds for the Central Universities(D2192160)performed in part on the SAXS/WAXS beamline at the Australian Synchrotron,which is part of the ANSTO.
基金the National Natural Science Foundation of China (61875072)International Cooperation and Exchange Project of Jilin Province (20170414002GH)+3 种基金Science and Technology Project of Education Department of Jilin Province (JJKH20190011KJ) for financial supportthe National Key Research and Development Program of China (2017YFA0206600)the National Natural Science Foundation of China (51773045, 21772030, 51922032, and 21961160720) for financial supportthe National Key Research and Development Program of China (2017YFA0206600 and 2019YFA0705900)。
文摘Smart windows, whose transparency can be tuned dynamically and even reversibly changed from transparent to opaque, have been the focus of research since the 1970s [1]. For one thing, smart windows can control the transmission of sunlight into the building,achieving energy savings by balancing the cooling load with the energy requirements of lighting and heating. For another, opaque glass walls act like curtains to protect privacy.
基金supported by the National Natural Science Foundation of China(52027817 and 03012800001)Shenzhen Science and Technology Innovation Committee(JCYJ20200109144614514)+1 种基金the support from the Hong Kong Research Grant Council for the GRF grant(11314122)the Guangdong Major Project of Basic and Applied Basic Research(2019B030302007)。
文摘可见光和近红外光双波段光电探测器因其高选择性和灵活多功能,在信号检测、生物成像、光通信和安全监控方面具有应用潜力.本文报道了一种基于钙钛矿/有机异质结结构的双波段探测器,实现了可见光波段和近红外波段具有电压可调制的光电响应.即正向偏压下探测器仅对可见光具有光电响应,反向偏压下又仅对近红外光具有光电响应.探测器包括1个吸收可见光(500~810 nm)的钙钛矿层和1个用于近红外光吸收(810~950 nm)的有机层,吸光层顶部和底部的N型载流子传输层则实现了对钙钛矿/有机层中光生载流子的电压可控传输,进而实现可电压调制的可见光/红外光响应.该器件在可见光和近红外波段的峰值响应率分别为93.5和102.2 m A/W,对近红外光的探测度达到了1012 Jones,并在可见光模式和近红外模式下都具有宽动态范围(>120 d B).本文同时实现了这种可电压调制的双波段探测器在可见光和近红外成像中的应用.
