Inorganic lead halide perovskites,especially CsPbI3,have witnessed significant progress in photovoltaic field due to their outstanding optoelectronic properties and high thermal stability.However,high-performance inor...Inorganic lead halide perovskites,especially CsPbI3,have witnessed significant progress in photovoltaic field due to their outstanding optoelectronic properties and high thermal stability.However,high-performance inorganic perovskite solar cells(IPSCs)are generally realized by strictly controlling the environmental humidity(mostly lower than 40%)during fabrication,which is undesirable for reducing fabrication cost and promoting further industrial production.Herein,a synergistic in situ hydrolysis polymerization strategy through 3,3,3-(trifluoropropyl)trichlorosilane(TFCS)and(3-2-aminoethylamino)propyltrimethoxysilane(AEMS)treatment is reported to prevent water invasion and realize efficient CsPbI3 IPSCs in highly humid air.TFCS not only regulates the crystallization process via hydrolysis reaction,but also stabilizes the phase structure by passivating the defects and producing a hydrophobic protection layer.Additionally,TFCS facilitates in situ polymerization of upper layer AEMS,thus promoting further enhanced protection of perovskites against ambient moisture.As a result,the CsPbI3 IPSCs fabricated at 45%humidity exhibit a dramatically improved efficiency of 20.09%,representing a record value for the inverted IPSCs fabricated in air with humidity over 40%.Moreover,the environmental humidity window for device fabrication can be broadened to 60%.This work provides an effective approach to stabilizing air-processedCsPbI3 and favoring the practical industrialmanufacture to further boost their cost-effective applications.展开更多
Al Ferron timed complex colorimetric method (AFM) and 27 Al NMR spectroscopy method(ANM) were discussed. For the former, the different colorimetric reagent preparation methods' results indicate that the...Al Ferron timed complex colorimetric method (AFM) and 27 Al NMR spectroscopy method(ANM) were discussed. For the former, the different colorimetric reagent preparation methods' results indicate that there are some differences beteween them, and the combined method can be used as a simplified procedure. For the latter, the small tube method is more accurate. Eventually, the Al 13 (ANM) was compared to the Al b (AFM).展开更多
The colonization of marine microorganisms,animals and plants on underwater surface forms marine biofouling.It has profound effects on marine industries.To solve the problem,we proposed a strategy of Dynamic Surface An...The colonization of marine microorganisms,animals and plants on underwater surface forms marine biofouling.It has profound effects on marine industries.To solve the problem,we proposed a strategy of Dynamic Surface Antifouling(DSAF),i.e.,continuously changing surfaces can effectively inhibit biofouling organisms landing and adhering,and developed degradable polymer based marine antifouling material.The degradation of polymer chain enables the surface dynamic or self-renewing even on static conditions.The final degradation products of these polymers are low molecular weight molecules,and do not produce marine microplastics.Meanwhile,the degradable polymers act as carriers and controlled release systems for antifoulants,further improving the antifouling efficiency.This article reviews the development of dynamic surface antifouling materials.展开更多
基金supported by the National Natural Science Foundation of China(no.52402128)Basic Research Programs of Taicang,2024(no.TC2024JC02)+1 种基金Natural Science Basic Research Program of Shaanxi(program no.2024JC-YBQN-0443)Natural Science Foundation of Chongqing,China(CSTB2022NSCQ-MSX0926 and CSTB2022NSCQ-MSX1335).
文摘Inorganic lead halide perovskites,especially CsPbI3,have witnessed significant progress in photovoltaic field due to their outstanding optoelectronic properties and high thermal stability.However,high-performance inorganic perovskite solar cells(IPSCs)are generally realized by strictly controlling the environmental humidity(mostly lower than 40%)during fabrication,which is undesirable for reducing fabrication cost and promoting further industrial production.Herein,a synergistic in situ hydrolysis polymerization strategy through 3,3,3-(trifluoropropyl)trichlorosilane(TFCS)and(3-2-aminoethylamino)propyltrimethoxysilane(AEMS)treatment is reported to prevent water invasion and realize efficient CsPbI3 IPSCs in highly humid air.TFCS not only regulates the crystallization process via hydrolysis reaction,but also stabilizes the phase structure by passivating the defects and producing a hydrophobic protection layer.Additionally,TFCS facilitates in situ polymerization of upper layer AEMS,thus promoting further enhanced protection of perovskites against ambient moisture.As a result,the CsPbI3 IPSCs fabricated at 45%humidity exhibit a dramatically improved efficiency of 20.09%,representing a record value for the inverted IPSCs fabricated in air with humidity over 40%.Moreover,the environmental humidity window for device fabrication can be broadened to 60%.This work provides an effective approach to stabilizing air-processedCsPbI3 and favoring the practical industrialmanufacture to further boost their cost-effective applications.
文摘Al Ferron timed complex colorimetric method (AFM) and 27 Al NMR spectroscopy method(ANM) were discussed. For the former, the different colorimetric reagent preparation methods' results indicate that there are some differences beteween them, and the combined method can be used as a simplified procedure. For the latter, the small tube method is more accurate. Eventually, the Al 13 (ANM) was compared to the Al b (AFM).
基金The financial support of the National Key Research and Development Program of China(2022YFB3806403)National Natural Science Foundation of China(52273073,U2241286,and 52003082)Guangdong Basic and Applied Basic Research Foundation(2023B1515020025)is acknowledged.
文摘The colonization of marine microorganisms,animals and plants on underwater surface forms marine biofouling.It has profound effects on marine industries.To solve the problem,we proposed a strategy of Dynamic Surface Antifouling(DSAF),i.e.,continuously changing surfaces can effectively inhibit biofouling organisms landing and adhering,and developed degradable polymer based marine antifouling material.The degradation of polymer chain enables the surface dynamic or self-renewing even on static conditions.The final degradation products of these polymers are low molecular weight molecules,and do not produce marine microplastics.Meanwhile,the degradable polymers act as carriers and controlled release systems for antifoulants,further improving the antifouling efficiency.This article reviews the development of dynamic surface antifouling materials.
