Tin-lead(Sn-Pb)mixed perovskites are extensively investigated in near-infrared(NIR)photodetectors(PDs)owing to their excellent photoelectric performance.However,achieving high-performance Sn-Pb mixed PDs remains chall...Tin-lead(Sn-Pb)mixed perovskites are extensively investigated in near-infrared(NIR)photodetectors(PDs)owing to their excellent photoelectric performance.However,achieving high-performance Sn-Pb mixed PDs remains challenging,primarily because of the rapid crystallization and the susceptibility of Sn^(2+) to oxidation.To ad⁃dress these issues,this study introduces the multifunctional molecules 2,3-difluorobenzenamine(DBM)to modulate the crystallization of Sn-Pb mixed perovskites and retard the oxidation of Sn^(2+),thereby significantly enhancing film quality.Compared with the pristine film,Sn-Pb mixed perovskite films modulated by DBM molecules exhibit a high⁃ly homogeneous morphology,reduced roughness and defect density.The self-powered NIR PDs fabricated with the improved films have a spectral response range from 300 nm to 1100 nm,a peak responsivity of 0.51 A·W^(-1),a spe⁃cific detectivity as high as 2.46×10^(11)Jones within the NIR region(780 nm to 1100 nm),a linear dynamic range ex⁃ceeding 152 dB,and ultrafast rise/fall time of 123/464 ns.Thanks to the outstanding performance of PDs,the fabri⁃cated 5×5 PDs array demonstrates superior imaging ability in the NIR region up to 980 nm.This work advances the development of Sn-Pb mixed perovskites for NIR detection and paves the way for their commercialization.展开更多
TN366 2003010593光电探测器阵列光敏元宽度对谱线峰值位置影响的研究=Influences on spectrum line position caused by light activatedelement’s width of elecrophotonic array[刊,中]/陈刚(重庆大学光电工程学院.重庆(400044)),...TN366 2003010593光电探测器阵列光敏元宽度对谱线峰值位置影响的研究=Influences on spectrum line position caused by light activatedelement’s width of elecrophotonic array[刊,中]/陈刚(重庆大学光电工程学院.重庆(400044)),温志渝…展开更多
O432.3 95010015一种新型CCD测色仪的研究=The research of anew CCD colorimeter[刊,中]/毛义,王庆有(天津大学精密仪器系),吴邦彦(黑龙江省计算中心)//仪器仪表学报.—1994,15(3).—327-329,332本测色仪以闪光灯作为脉冲照明光源,具...O432.3 95010015一种新型CCD测色仪的研究=The research of anew CCD colorimeter[刊,中]/毛义,王庆有(天津大学精密仪器系),吴邦彦(黑龙江省计算中心)//仪器仪表学报.—1994,15(3).—327-329,332本测色仪以闪光灯作为脉冲照明光源,具有发光强度较大,光强波动小及发光时间短的特点,既有利于减小光电器件暗本底的影响,又不会产生较强的电磁波干扰。颜色谱的接收器是CCD光电探测阵列,选用了灵敏度高、噪声低、动态范围大和像敏元为2048的TCD142D。驱动电路数据输出率设计为2MHz.采用标准白板与待测物的双光路结构,使用两个CCD光电探测阵列。展开更多
基金Supported by National Key Research and Development Program of China(2022YFA1404201)National Natural Science Foundation of China(62205187,U23A20380,U22A2091,62222509,62127817,62075120)+3 种基金Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China(IRT_17R70)Fundamental Research Program of Shanxi Province(202103021223032,202303021222031)Project Funded by China Postdoctoral Science Foundation(2022M722006)Fund for Shanxi“1331 Project”Key Subjects Construction。
文摘Tin-lead(Sn-Pb)mixed perovskites are extensively investigated in near-infrared(NIR)photodetectors(PDs)owing to their excellent photoelectric performance.However,achieving high-performance Sn-Pb mixed PDs remains challenging,primarily because of the rapid crystallization and the susceptibility of Sn^(2+) to oxidation.To ad⁃dress these issues,this study introduces the multifunctional molecules 2,3-difluorobenzenamine(DBM)to modulate the crystallization of Sn-Pb mixed perovskites and retard the oxidation of Sn^(2+),thereby significantly enhancing film quality.Compared with the pristine film,Sn-Pb mixed perovskite films modulated by DBM molecules exhibit a high⁃ly homogeneous morphology,reduced roughness and defect density.The self-powered NIR PDs fabricated with the improved films have a spectral response range from 300 nm to 1100 nm,a peak responsivity of 0.51 A·W^(-1),a spe⁃cific detectivity as high as 2.46×10^(11)Jones within the NIR region(780 nm to 1100 nm),a linear dynamic range ex⁃ceeding 152 dB,and ultrafast rise/fall time of 123/464 ns.Thanks to the outstanding performance of PDs,the fabri⁃cated 5×5 PDs array demonstrates superior imaging ability in the NIR region up to 980 nm.This work advances the development of Sn-Pb mixed perovskites for NIR detection and paves the way for their commercialization.
文摘TN366 2003010593光电探测器阵列光敏元宽度对谱线峰值位置影响的研究=Influences on spectrum line position caused by light activatedelement’s width of elecrophotonic array[刊,中]/陈刚(重庆大学光电工程学院.重庆(400044)),温志渝…
文摘O432.3 95010015一种新型CCD测色仪的研究=The research of anew CCD colorimeter[刊,中]/毛义,王庆有(天津大学精密仪器系),吴邦彦(黑龙江省计算中心)//仪器仪表学报.—1994,15(3).—327-329,332本测色仪以闪光灯作为脉冲照明光源,具有发光强度较大,光强波动小及发光时间短的特点,既有利于减小光电器件暗本底的影响,又不会产生较强的电磁波干扰。颜色谱的接收器是CCD光电探测阵列,选用了灵敏度高、噪声低、动态范围大和像敏元为2048的TCD142D。驱动电路数据输出率设计为2MHz.采用标准白板与待测物的双光路结构,使用两个CCD光电探测阵列。
