title: Hybrid Perovskite Quantum Nanostructures Synthesized by Electrospray Antisolvent-Solvent Extraction and Intercalation.
abstract: Perovskites based on organometal lead halides have attracted great deal of scientific attention recently in the context of solar cells and optoelectronic devices due to their unique and tunable electronic and optical properties. Herein, we show that the use of electrospray technique in conjunction with the antisolvent-solvent extraction leads to novel low-dimensional quantum structures (especially 2-D nanosheets) of CH3NH3PbI3- and CH3NH3PbBr3-based layered perovskites with unusual luminescence properties. We also show that the optical bandgaps and emission characteristics of these colloidal nanomaterials can be tuned over a broad range of visible spectral region by compositional tailoring of mixed-halide (I- and Br-based) perovskites.
authors.affiliation: Centre of Excellence in Solar Energy, Physical and Material Chemistry Division, National Chemical Laboratory (NCL) Pune, 411 008, India.|Academy of Scientific and Innovative Research (AcSIR) , Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110 001, India.
authors.forename: Rounak
authors.initials: R
authors.lastname: Naphade
authors.affiliation: Centre of Excellence in Solar Energy, Physical and Material Chemistry Division, National Chemical Laboratory (NCL) Pune, 411 008, India.|Academy of Scientific and Innovative Research (AcSIR) , Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110 001, India.
authors.forename: Satyawan
authors.initials: S
authors.lastname: Nagane
authors.affiliation: Department of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER) , Dr. Homi Bhabha Road, Pune 411 008, India.
authors.forename: G Shiva
authors.initials: GS
authors.lastname: Shanker
authors.affiliation: Department of Physics and National Centre for Nanosciences & Nanotechnology, University of Mumbai , Vidyanagari, Santacruz (E), Mumbai 400 098, India.
authors.forename: Rohan
authors.initials: R
authors.lastname: Fernandes
authors.affiliation: Department of Physics and National Centre for Nanosciences & Nanotechnology, University of Mumbai , Vidyanagari, Santacruz (E), Mumbai 400 098, India.
authors.forename: Dushyant
authors.initials: D
authors.lastname: Kothari
authors.affiliation: School of Engineering, Brown University , Providence, Rhode Island 02912, United States.
authors.forename: Yuanyuan
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: School of Engineering, Brown University , Providence, Rhode Island 02912, United States.
authors.forename: Nitin P
authors.initials: NP
authors.lastname: Padture
authors.affiliation: Centre of Excellence in Solar Energy, Physical and Material Chemistry Division, National Chemical Laboratory (NCL) Pune, 411 008, India.|Department of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER) , Dr. Homi Bhabha Road, Pune 411 008, India.
authors.forename: Satishchandra
authors.initials: S
authors.lastname: Ogale
keywords: 2D nanostructure systems; antisolvent−solvent extraction; bandgap tuning; electrospray; nanosheets; perovskite; quantum dots