首页|Room-temperature synthesis of full-component APbX3 perovskite nanocrystal inks for optoelectronic applications

Room-temperature synthesis of full-component APbX3 perovskite nanocrystal inks for optoelectronic applications

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Lead halide perovskite nanocrystals(PNCs)have received great research interests due to their excellent optoelectronic properties.However,high temperature,inert gas protection and insulating long-chain ligands are used during the conventional hot-injection synthesis of PNCs,which limits their practical applications.In this work,we first develop a simple and scalable polar-solvent-free method for the prepa-ration of full-component APbX3(A=Cs,methylammonium(MA),formamidinium(FA),X=Cl,Br,I)PNCs under ambient condition.Through an exothermic reaction between butylamine(BA)and propionic acid(PA)short ligands,the PbX2 precursors could be well dissolved without use of any polar solvent.Meanwhile,the relatively lower growth rate of PNCs in our room-temperature reaction enables us to modulate the synthetic procedure to enhance the scalability(40-fold)and achieve large-scale synthesis.The resultant short ligands passivated PNC inks are compatible with varying solution depositing tech-nique like spray coating for large-area film.Finally,we showcase that adopting the as-prepared MAPbI3 PNC inks,a self-powered photodetector is fabricated and shows a high photoresponsivity.These results demonstrate that our ambient-condition synthetic approach can accelerate the preparation of tunable and ready-to-use PNCs towards commercial optoelectronic applications.

Room-temperature synthesisPerovskite nanocrystalsShort-chain ligandsLarge-scalePhotodetector

Xinyu Zhao、Du Li、Xuliang Zhang、Hehe Huang、Chenyu Zhao、Wanli Ma、Jianyu Yuan

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Institute of Functional Nano & Soft Materials(FUNSOM),Soochow University,Suzhou 215123,Jiangsu,China

Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices,Soochow University,Suzhou 215123,Jiangsu,China

Jiangsu Key Laboratory of Advanced Negative Carbon Technologies,Soochow University,Suzhou 215123,Jiangsu,China

National Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaChina National Postdoctoral Program for Innovative TalentsNatural Science Foundation of Jiangsu ProvinceJiangsu Funding Program for Excellent Postdoctoral TalentScience and Technology Program of Suzhouthe"111"projectCollaborative Innovation Center of Suzhou Nano Science and Technology,Soochow University

2023YFE02100005226114569652073198BX20230255BK202115982023ZB405ST202219

2024

10.1016/j.jechem.2024.01.015

能源化学
中国科学院大连化学物理研究所 中国科学院成都有机化学研究所

能源化学

CSTPCDEI
影响因子：0.654
ISSN：2095-4956
年,卷(期)：2024.92(5)