title: Fabrication of a Homogeneous, Integrated, and Compact Film of Organic-Inorganic Hybrid Ni(en)3Ag2I4 with Near-Infrared Absorbance and Semiconducting Features.
abstract: The organic-inorganic hybrid crystal Ni(en)3Ag2I4 (where en represents 1,2-ethylenediamine) crystallizes in hexagonal space group P63, in which the AgI4(3-) tetrahedra connect into a diamondlike inorganic framework via sharing of the vertex and the Ni(en)3(2+) octahedra fill in the pores of the framework. UV-vis-near-IR (NIR) spectroscopy disclosed that this hybrid shows intense NIR absorbance centered at ca. 870 nm, and the variable-temperature conductivity measurement revealed that the hybrid is a semiconductor with Ea = 0.46 eV. The electronic band structure of Ni(en)3Ag2I4 was calculated using the density functional theory method, indicating that the NIR absorbance arises from d-d transition within the Ni(2+) cation of Ni(en)3(2+). The homogeneous, compact, and transparent crystalline film of Ni(en)3Ag2I4 was fabricated via a secondary seed growth strategy, which has promising application in NIR devices.
authors.affiliation: State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University , Nanjing 210009, P. R. China.|College of Chemistry and Molecular Engineering, Nanjing Tech University , Nanjing 211816, P. R. China.
authors.forename: Tian-Yu
authors.initials: TY
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University , Nanjing 210009, P. R. China.
authors.forename: Lei
authors.initials: L
authors.lastname: Shi
authors.affiliation: State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University , Nanjing 210009, P. R. China.|College of Chemistry and Molecular Engineering, Nanjing Tech University , Nanjing 211816, P. R. China.
authors.forename: Hao
authors.initials: H
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University , Nanjing 210009, P. R. China.|College of Chemistry and Molecular Engineering, Nanjing Tech University , Nanjing 211816, P. R. China.
authors.forename: Xiao-Ming
authors.initials: XM
authors.lastname: Ren
authors.affiliation: State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University , Nanjing 210009, P. R. China.|College of Chemistry and Molecular Engineering, Nanjing Tech University , Nanjing 211816, P. R. China.
authors.forename: Chen
authors.initials: C
authors.lastname: Xiao
authors.affiliation: State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University , Nanjing 210009, P. R. China.
authors.forename: Wanqin
authors.initials: W
authors.lastname: Jin