Earth-abundant and environment friendly organic–inorganic hybrid tetrachloroferrate salt CH3NH3FeCl4: structure, adsorption properties and photoelectric behavior

Yin, Jie; Shi, Shaozhen; Wei, Jiazhen; He, Guohang; Fan, Lin; Guo, Junxue; Zhang, Kaixuan; Xu, Weiwei; Yuan, Cang; Wang, Yunying; Wang, Liwen; Pu, Xipeng; Li, Wenzhi; Zhang, Dafeng; Wang, Jie; Ren, Xinguang; Ma, Huiyan; Shao, Xin; Zhou, Huawei

doi:10.1039/c8ra03498b

Cited by 25 publications

(25 citation statements)

References 11 publications

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“…To obtain the band gap of K 2 Cu 2 Cl 6 , diffuse reflection spectroscopy of K 2 Cu 2 Cl 6 single crystals was carried out as shown in Figure 2b. According to the previous literature, 16 K 2 Cu 2 Cl 6 can be regarded as direct allowed transition. Thus, E g for the thin film is determined to be approximately 1.85 eV from the intercept of the linear part of the [ F ( R ) hv ]2 plot on the X -axis.…”

Section: Resultsmentioning

confidence: 99%

“…The devices of the FTO/TiO 2 /K 2 Cu 2 Cl 6 /carbon electrode were fabricated and characterized according to the previous literature. 16 The TiO 2 layer was covered by the K 2 Cu 2 Cl 6 layer by spin-coating the aqueous solution of 170 mg CuCl 2 and 75 mg KCl (3000 rpm for 30 s). The active area of the FTO/TiO 2 /K 2 Cu 2 Cl 6 /carbon electrode devices was 1 cm 2 .…”

Section: Methodsmentioning

confidence: 99%

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Synthesis, Crystal Structure, UV–Vis Adsorption Properties, Photoelectric Behavior, and DFT Computational Study of All-Inorganic and Lead-Free Copper Halide Salt K₂Cu₂Cl₆

Zhou

Liu

et al. 2018

ACS Omega

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In this study, all-inorganic copper halide salt K 2 Cu 2 Cl 6 single-crystal and thin films were prepared. The single-crystal diffraction data belonged to the monoclinic K 2 Cu 2 Cl 6 (space group = P 2 (1)/ C , unit cell parameters of a = 4.0340 Å, b = 13.7987 Å, c = 8.7445 Å, α = 90.000, β = 97.123, and γ = 90.000). As far as we know, this is the first study of the copper halide salt K 2 Cu 2 Cl 6 for optoelectronic applications. The band gap of K 2 Cu 2 Cl 6 is calculated to be approximately 1.85 eV. A low-cost photodetector based on the K 2 Cu 2 Cl 6 thin film was efficient under different monochromatic light from 330 to 390 nm with different chopping frequencies (1.33–30 Hz). Density functional theory (DFT) computational results indicate that the valence bands (VBs) and conduction bands (CBs) are shifted up in energy using the orbital-dependent correction to the DFT energy. Partial density of states reveals that the VBs and narrow CBs are derived from the hybrid orbitals of Cu 2+ 3d and Cl – p, respectively.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Synthesis, Crystal Structure, UV–Vis Adsorption Properties, Photoelectric Behavior, and DFT Computational Study of All-Inorganic and Lead-Free Copper Halide Salt K₂Cu₂Cl₆

Zhou

Liu

et al. 2018

ACS Omega

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“…I – V curve under dark was carried out at CHI760. Photoelectric response was measured according to our pervious literature …”

Section: Methodsmentioning

confidence: 99%

2D Schottky Junction between Graphene Oxide and Transition‐Metal Dichalcogenides: Photoresponsive Properties and Electrocatalytic Performance

Zhou

Guo

Wang

et al. 2019

Adv Materials Inter

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Consuming fossil fuels in the world is rising sharply and will continue to increase in the next few decades, which will cause environmental pollution and ecological destruction. Therefore, the search for clean and alternative energy becomes an urgent task for scientists in the related fields. Green energy-conversion devices (GECDs), such as solar-fuel cell, fuel cell, and metal air battery, have the characteristics of low carbon, environmental protection, and green, sustainable, and so on. However, there are low efficiency, long energy payback time and dynamic problems in energy conversion process. Recently, scientists have been looking for a suitable catalyst to improve the efficiency of energy conversion. 2D materials have been widely applied in traditional heterogeneous catalysis, electrocatalysis, photocatalysis, and other catalytic systems, especially in some important reactions of GECDs, such as water splitting, [1][2][3][4] carbon dioxide reduction, electron-transfer mediators reduction in photoelectrochemical cells. [5] 2D material exhibits unique catalytic characteristics. Among many potential candidate materials, low-cost and abundant 2D transition-metal dichalcogenides (2D-TMDs), such as MoS 2 and WS 2 , attracted much attention. However, the active sites of WS 2 and MoS 2 are at the edge of 2D. [1,2] The large surface of the 2D is inert and idle, which pulls down the catalytic performance of WS 2 and MoS 2 . Thus, how to increase or activate the inert sites on the surface of the 2D-WS 2 and 2D-MoS 2 is an important challenge. In addition, an excellent electrocatalyst should also have strong conductivity. However, WS 2 and MoS 2 are semiconductors with poor electrical conductivity and low electron-transfer ability, which also limited their electrocatalytic activity.How to increase the catalytic and conductivity properties of WS 2 and MoS 2 becomes a hot topic in the academic world. Many scholars do many works to pull inert and idle surface of the 2D to be utilized. For example, MoS 2 /WS 2 quantum dots were synthesized by cutting 2D MoS 2 /WS 2 nanosheets at a mild temperature. The resulting products possess defect-rich structure. [3] The bulk MoS 2 and WS 2 are directly exploited to few 2D graphene is conductor and not a semiconductor. 2D transition-metal dichalcogenides (TMD) is a semiconductor and not a conductor. Preparing 2D composite material that simultaneously possesses both advantages of graphene and TMD has proven to be challenging. In this work, both 2D-WS 2 /2D-GO and 2D-MoS 2 /2D-GO composites with few layer thickness are synthesized. The electronic structure indicates a high content of Mo 4+ 3d5/2 and W 4+ 4f7/2 with lower binding energy in the 2D composite, which is ascribed to partial loss of surface sulfur atoms in 2D composites and the newly formed heteroatomic bond of CWS and CMoS. The Schottky junction between 2D-GO and 2D-TMD (2D G-T junction) is established and exhibits obvious photoelectric responses. Superior electrocatalytic properties of the two 2D-composites are attribut...

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“…For instance, for single halide perovskites, Zhou et al. fabricated CH 3 NH 3 MnI 3 and CH 3 NH 3 FeCl 4 by a simple one‐step spin‐coating method, [ 105,106 ] and Tian et al. obtained (CH 3 NH 3 ) 2 CoCl 4 through a supersaturated solution crystallization process.…”

Section: Other Lead‐free Halide Perovskitesmentioning

confidence: 99%

Progress of Lead‐Free Halide Perovskites: From Material Synthesis to Photodetector Application

Cao

2020

Adv Funct Materials

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Lead halide perovskite (LHP) has been widely researched in the photovoltaic field due to its highly attractive optoelectronic properties. Among the LHP‐based devices, the detectivity of the photodetector is as high as 1015 Jones. However, their practical application is limited by the toxicity of lead in perovskite and the inherent instability induced by the perovskite structure against moisture, heat, and light. To address these issues, tremendous efforts have been made to replace Pb2+ with other environmentally friendly metal cations such as Sn2+, Bi3+, Cu2+, Sb3+, and Ge2+. Thus, considerable breakthroughs in device performance and stability using lead‐free metal halide perovskite (LFMHP) have been made in recent years. In this review, the synthesis methods and strategies are focused for enhancing the material quality and photoelectric properties of LFMHPs and the recent research progress of LFMHP‐based photodetectors is summarized. This research provides some promising perspectives for high‐performance LFMHP photodetectors to achieve a broader range of practical applications in the future.

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Earth-abundant and environment friendly organic–inorganic hybrid tetrachloroferrate salt CH₃NH₃FeCl₄: structure, adsorption properties and photoelectric behavior

Cited by 25 publications

References 11 publications

Synthesis, Crystal Structure, UV–Vis Adsorption Properties, Photoelectric Behavior, and DFT Computational Study of All-Inorganic and Lead-Free Copper Halide Salt K₂Cu₂Cl₆

Synthesis, Crystal Structure, UV–Vis Adsorption Properties, Photoelectric Behavior, and DFT Computational Study of All-Inorganic and Lead-Free Copper Halide Salt K₂Cu₂Cl₆

2D Schottky Junction between Graphene Oxide and Transition‐Metal Dichalcogenides: Photoresponsive Properties and Electrocatalytic Performance

Progress of Lead‐Free Halide Perovskites: From Material Synthesis to Photodetector Application

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Earth-abundant and environment friendly organic–inorganic hybrid tetrachloroferrate salt CH3NH3FeCl4: structure, adsorption properties and photoelectric behavior

Cited by 25 publications

References 11 publications

Synthesis, Crystal Structure, UV–Vis Adsorption Properties, Photoelectric Behavior, and DFT Computational Study of All-Inorganic and Lead-Free Copper Halide Salt K2Cu2Cl6

Synthesis, Crystal Structure, UV–Vis Adsorption Properties, Photoelectric Behavior, and DFT Computational Study of All-Inorganic and Lead-Free Copper Halide Salt K2Cu2Cl6

2D Schottky Junction between Graphene Oxide and Transition‐Metal Dichalcogenides: Photoresponsive Properties and Electrocatalytic Performance

Progress of Lead‐Free Halide Perovskites: From Material Synthesis to Photodetector Application

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Earth-abundant and environment friendly organic–inorganic hybrid tetrachloroferrate salt CH₃NH₃FeCl₄: structure, adsorption properties and photoelectric behavior

Synthesis, Crystal Structure, UV–Vis Adsorption Properties, Photoelectric Behavior, and DFT Computational Study of All-Inorganic and Lead-Free Copper Halide Salt K₂Cu₂Cl₆

Synthesis, Crystal Structure, UV–Vis Adsorption Properties, Photoelectric Behavior, and DFT Computational Study of All-Inorganic and Lead-Free Copper Halide Salt K₂Cu₂Cl₆