All-inorganic CsPbBr3 perovskite quantum dots as a photoluminescent probe for ultrasensitive Cu2+ detection

Pollution triggered by highly toxic heavy metal ions has become a worldwide issue of concern, and has aroused increasing research interest, but it is still a challenge to carry out its trace detection in the organic phase using inorganic fluorescent colloidal nanocrystals (NCs). Herein, we report fully inorganic CsPbBr3 perovskite quantum dots (PQDs), which were synthesized via a hot-injection method, as a fluorescent probe for the selective detection of copper ions in hexane. The photoluminescence (PL) intensity of CsPbBr3 PQDs is significantly quenched within several seconds after the addition of Cu2+ due to effective electron transfer from the PQDs to the added Cu2+, which is experimentally verified via analyzing absorption spectra and PL decay lifetime. The sensor, in turn-off mode, has a detection range from 0 to 100 nM with a limit of detection (LOD) as low as 0.1 nM, indicating great potential for practical applications. This study paves the way for PQD-based fluorescent probes for heavy metal detection in the organic phase.

[1]  Long Sun,et al.  Fluorescence detection of cholesterol using a nitrogen-doped graphene quantum dot/chromium picolinate complex-based sensor. , 2017, Journal of materials chemistry. B.

[2]  L. Prodi,et al.  Characterization of 5-chloro-8-methoxyquinoline appended diaza-18-crown-6 as a chemosensor for cadmium , 2001 .

[3]  X. Hou,et al.  Semicondutor quantum dots-based metal ion probes. , 2014, Nanoscale.

[4]  M. Chatti,et al.  Highly Selective and Sensitive Detection of Cu(2+) Ions Using Ce(III)/Tb(III)-Doped SrF2 Nanocrystals as Fluorescent Probe. , 2015, ACS applied materials & interfaces.

[5]  Lei Wang,et al.  Photoluminescence quenching of inorganic cesium lead halides perovskite quantum dots (CsPbX3) by electron/hole acceptor. , 2017, Physical chemistry chemical physics : PCCP.

[6]  Zhengqing Liu,et al.  Fluorescence enhancement of CdTe/CdS quantum dots by coupling of glyphosate and its application for sensitive detection of copper ion. , 2012, Analytica chimica acta.

[7]  M. Fiebig,et al.  Low-threshold amplified spontaneous emission and lasing from colloidal nanocrystals of caesium lead halide perovskites , 2015, Nature Communications.

[8]  Changqing Zhu,et al.  Aqueous synthesis of type-II core/shell CdTe/CdSe quantum dots for near-infrared fluorescent sensing of copper(II). , 2008, The Analyst.

[9]  P. Saini,et al.  Probing the Mechanism of Fluorescence Quenching of QDs by Co(III)-Complexes: Size of QD and Nature of the Complex Both Dictate Energy and Electron Transfer Processes , 2015 .

[10]  Ping Yang,et al.  Application of hybrid SiO2-coated CdTe nanocrystals for sensitive sensing of Cu2+ and Ag+ ions. , 2013, Luminescence : the journal of biological and chemical luminescence.

[11]  M. Amjadi,et al.  Sulfur and nitrogen co-doped carbon quantum dots as the chemiluminescence probe for detection of Cu2+ ions , 2017 .

[12]  S. Shen,et al.  Synthesis of l-glutathione-capped-ZnSe quantum dots for the sensitive and selective determination of copper ion in aqueous solutions , 2014 .

[13]  X. An,et al.  A near-infrared-emitting CdTe/CdS core/shell quantum dots-based OFF-ON fluorescence sensor for highly selective and sensitive detection of Cd2+. , 2012, Talanta.

[14]  Shuo Liu,et al.  Fluorescent chemosensors for copper(II) ion: Structure, mechanism and application , 2017 .

[15]  Louzhen Fan,et al.  Sulfur-doped graphene quantum dots as a novel fluorescent probe for highly selective and sensitive detection of Fe(3+). , 2014, Analytical chemistry.

[16]  Jia-cong Shen,et al.  Dithiothreitol-capped fluorescent gold nanoclusters: an efficient probe for detection of copper(II) ions in aqueous solution. , 2014, Biosensors & bioelectronics.

[17]  Hideyuki Tanaka,et al.  Air-Stable and Solution-Processable Perovskite Photodetectors for Solar-Blind UV and Visible Light. , 2015, The journal of physical chemistry letters.

[18]  S. M. Robinson,et al.  Copper complexing decreases the ability of amyloid beta peptide to cross the BBB and enter brain parenchyma , 2007, Peptides.

[19]  J. Nriagu,et al.  Quantitative assessment of worldwide contamination of air, water and soils by trace metals , 1988, Nature.

[20]  Miao He,et al.  Utilization of unmodified gold nanoparticles for label-free detection of mercury (II): Insight into rational design of mercury-specific oligonucleotides. , 2017, Journal of hazardous materials.

[21]  Qingsong Shan,et al.  50‐Fold EQE Improvement up to 6.27% of Solution‐Processed All‐Inorganic Perovskite CsPbBr3 QLEDs via Surface Ligand Density Control , 2017, Advanced materials.

[22]  Miao Zhou,et al.  Flexible All-Inorganic Perovskite CsPbBr3 Nonvolatile Memory Device. , 2017, ACS applied materials & interfaces.

[23]  B. Tang,et al.  Highly luminescent water-soluble CdTe nanowires as fluorescent probe to detect copper(II). , 2005, Chemical communications.

[24]  Ramaier Narayanaswamy,et al.  L-Cysteine-capped ZnS quantum dots based fluorescence sensor for Cu2+ ion , 2009 .

[25]  Zhigang Zang,et al.  Luminescent AIZS-GO nanocomposites as fluorescent probe for detecting copper(II) ion , 2016 .

[26]  Dong Uk Lee,et al.  Iodide management in formamidinium-lead-halide–based perovskite layers for efficient solar cells , 2017, Science.

[27]  Edward H Sargent,et al.  Conformal organohalide perovskites enable lasing on spherical resonators. , 2014, ACS nano.

[28]  Y. Lo,et al.  Highly sensitive and selective sensor based on silica-coated CdSe/ZnS nanoparticles for Cu2+ ion detection , 2012 .

[29]  Yi Yu,et al.  Solution-Phase Synthesis of Cesium Lead Halide Perovskite Nanowires. , 2015, Journal of the American Chemical Society.

[30]  Yunsheng Xia,et al.  Use of surface-modified CdTe quantum dots as fluorescent probes in sensing mercury (II). , 2007, Talanta.

[31]  Jun‐Jie Zhu,et al.  Metal ions optical sensing by semiconductor quantum dots , 2014 .

[32]  Yuanjin Zheng,et al.  Plasmonic Perovskite Light-Emitting Diodes Based on the Ag-CsPbBr3 System. , 2017, ACS applied materials & interfaces.

[33]  Clifford B. Murphy,et al.  Fluorescent conjugated polymer molecular wire chemosensors for transition metal ion recognition and signaling , 2009 .

[34]  Xiao Wei Sun,et al.  All‐Inorganic Perovskite Nanocrystals for High‐Efficiency Light Emitting Diodes: Dual‐Phase CsPbBr3‐CsPb2Br5 Composites , 2016 .

[35]  Jennifer C. Lee,et al.  Copper(II) Binding to α-Synuclein, the Parkinson’s Protein , 2008, Journal of the American Chemical Society.

[36]  P. Solanki,et al.  L-cysteine and 3-mercaptopropionic acid capped cadmium selenide quantum dots based metal ion probes , 2017 .

[37]  H. Zeng,et al.  CsPbX3 Quantum Dots for Lighting and Displays: Room‐Temperature Synthesis, Photoluminescence Superiorities, Underlying Origins and White Light‐Emitting Diodes , 2016 .

[38]  Sang Il Seok,et al.  High-performance photovoltaic perovskite layers fabricated through intramolecular exchange , 2015, Science.

[39]  Oleksandr Voznyy,et al.  Efficient Luminescence from Perovskite Quantum Dot Solids. , 2015, ACS applied materials & interfaces.

[40]  Matthew B. Johnson,et al.  Large-scale synthesis of nearly monodisperse CdSe/CdS core/shell nanocrystals using air-stable reagents via successive ion layer adsorption and reaction. , 2003, Journal of the American Chemical Society.

[41]  Zhigang Zang,et al.  Enhanced Stability and Tunable Photoluminescence in Perovskite CsPbX3 /ZnS Quantum Dot Heterostructure. , 2017, Small.

[42]  Anupma Thakur,et al.  A "Turn-On" thiol functionalized fluorescent carbon quantum dot based chemosensory system for arsenite detection. , 2017, Journal of hazardous materials.

[43]  Haibing Li,et al.  Single quantum dot-micelles coated with gemini surfactant for selective recognition of a cation and an anion in aqueous solutions , 2008 .

[44]  Aifei Wang,et al.  Ligand-Mediated Synthesis of Shape-Controlled Cesium Lead Halide Perovskite Nanocrystals via Reprecipitation Process at Room Temperature. , 2016, ACS nano.

[45]  Chunzhong Li,et al.  CsPbBr3 Perovskite Quantum Dots-Based Monolithic Electrospun Fiber Membrane as an Ultrastable and Ultrasensitive Fluorescent Sensor in Aqueous Medium. , 2016, The journal of physical chemistry letters.

[46]  X. Su,et al.  Determination of copper(II) and cadmium(II) based on ternary CuInS2 quantum dots , 2012 .

[47]  Christopher H. Hendon,et al.  Nanocrystals of Cesium Lead Halide Perovskites (CsPbX3, X = Cl, Br, and I): Novel Optoelectronic Materials Showing Bright Emission with Wide Color Gamut , 2015, Nano letters.

[48]  G. Conibeer,et al.  Investigation of anti-solvent induced optical properties change of cesium lead bromide iodide mixed perovskite (CsPbBr3-xIx) quantum dots. , 2017, Journal of colloid and interface science.

[49]  Xiaosheng Tang,et al.  The synthesis of water-dispersible zinc doped AgInS2 quantum dots and their application in Cu2+ detection , 2017 .

[50]  Hao Zhang,et al.  Fabrication of CdTe nanoparticles-based superparticles for an improved detection of Cu2+ and Ag+ , 2012 .

[51]  C. K. Møller.  Crystal Structure and Photoconductivity of Cæsium Plumbohalides , 1958 .

[52]  Y. Leng,et al.  Room temperature single-photon emission and lasing for all-inorganic colloidal perovskite quantum dots , 2016 .

[53]  Peng Gao,et al.  Mesoscopic CH3NH3PbI3/TiO2 heterojunction solar cells. , 2012, Journal of the American Chemical Society.

[54]  Qibing Pei,et al.  Emulsion Synthesis of Size-Tunable CH3NH3PbBr3 Quantum Dots: An Alternative Route toward Efficient Light-Emitting Diodes. , 2015, ACS applied materials & interfaces.

[55]  Margarita Vázquez-González,et al.  Analytical strategies based on quantum dots for heavy metal ions detection , 2014, Journal of biomedical optics.

[56]  M. Kovalenko,et al.  Fast Anion-Exchange in Highly Luminescent Nanocrystals of Cesium Lead Halide Perovskites (CsPbX3, X = Cl, Br, I) , 2015, Nano letters.

[57]  Chunzhong Li,et al.  Perovskite quantum dots encapsulated in electrospun fiber membranes as multifunctional supersensitive sensors for biomolecules, metal ions and pH. , 2017, Nanoscale horizons.

[58]  Wei Gao,et al.  CsPbBr3 Perovskite Nanocrystals as Highly Selective and Sensitive Spectrochemical Probes for Gaseous HCl Detection , 2017 .

[59]  Mercouri G Kanatzidis,et al.  Semiconducting tin and lead iodide perovskites with organic cations: phase transitions, high mobilities, and near-infrared photoluminescent properties. , 2013, Inorganic chemistry.

[60]  Selective Detection of Mercury(II) and Copper(II) Based on the Opposite Size‐dependent Fluorescence Quenching of CdTe Quantum Dots , 2007 .