1
|
Bedard J, Roberts NJ, Shayan M, Bamford KL, Werner-Zwanziger U, Marczenko KM, Chitnis SS. (PNSiMe 3 ) 4 (NMe) 6 : A Robust Tetravalent Phosphaza-adamantane Scaffold for Molecular and Macromolecular Construction. Angew Chem Int Ed Engl 2022; 61:e202204851. [PMID: 35384216 DOI: 10.1002/anie.202204851] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Indexed: 01/03/2023]
Abstract
Tetraarylmethanes and adamantanes are important rigid covalent connectors that play a four-way scaffolding role in molecular and materials chemistry. We report the synthesis of a new tetravalent phosphaza-adamantane cage, (PNSiMe3 )4 (NMe)6 (2), that shows high thermal, air, and redox stability due to its geometry. It nevertheless participates in covalent four-fold functionalization reactions along its periphery. The combination of a robust core and reactive corona makes 2 a convenient inorganic scaffold upon which tetrahedral molecular and macromolecular chemistry can be constructed. This potential is demonstrated by the synthesis of a tetrakis(bis(phosphine)iminium) ion (in compound 3) and the first all P/N poly(phosphazene) network (5).
Collapse
Affiliation(s)
- Joseph Bedard
- Chemistry Department, Dalhousie University, 6274 Coburg Road, Halifax, Nova Scotia, B3H 4R2, Canada
| | - Nicholas J Roberts
- Chemistry Department, Dalhousie University, 6274 Coburg Road, Halifax, Nova Scotia, B3H 4R2, Canada
| | - Mohsen Shayan
- Chemistry Department, Dalhousie University, 6274 Coburg Road, Halifax, Nova Scotia, B3H 4R2, Canada
| | - Karlee L Bamford
- Chemistry Department, Dalhousie University, 6274 Coburg Road, Halifax, Nova Scotia, B3H 4R2, Canada
| | - Ulrike Werner-Zwanziger
- Chemistry Department, Dalhousie University, 6274 Coburg Road, Halifax, Nova Scotia, B3H 4R2, Canada
| | | | - Saurabh S Chitnis
- Chemistry Department, Dalhousie University, 6274 Coburg Road, Halifax, Nova Scotia, B3H 4R2, Canada
| |
Collapse
|
2
|
Li B, Dang J, Zhuang Q, Lv Z. Recent Advances in Inorganic Electrochromic Materials from Synthesis to Applications: Critical Review on Functional Chemistry and Structure Engineering. Chem Asian J 2022; 17:e202200022. [PMID: 35191172 DOI: 10.1002/asia.202200022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/19/2022] [Indexed: 11/10/2022]
Abstract
For the assembly of electrochromic devices (ECDs) generally with multilayer structures, supportive components usually are needed to be incorporated with EC materials. The reasonable project and development of ECDs will achieve broad expected applications. In this study, we reviewed several impressive methods to design and fabricate ECDs with high-performance and versatility based on recent frontier research. The first part of the review is centered on the desirability and strengthening mechanism of nanostructured inorganic EC materials. The second part illustrates the recent advances in transparent conductors. We then summarize the demands and means to modify the formation of electrolytes for practicable ECDs. Moreover, efforts to increase the compatibility with the EC layer and ion capacity are delineated. In the end, the application prospects of inorganic ECDs are further explored, which offers a guideline for the industrialization process of ECDs.
Collapse
Affiliation(s)
- Borui Li
- National Innovation Center of high speed train, National Innovation center of high speed train, CHINA
| | - Jie Dang
- Chongqing University, College of Materials Science and Engineering, Shapingba Strict 174, 400044, Chongqing, CHINA
| | - Qianyu Zhuang
- National innovation (Qingdao) high speed train material research institute Co. LTD, National innovation (Qingdao) high speed train material research insitute Co. LTD, CHINA
| | - Zepeng Lv
- Chongqing University, College of Materials Science and Engineering, CHINA
| |
Collapse
|
3
|
Pandey A, Nikam AN, Mutalik SP, Fernandes G, Shreya AB, Padya BS, Raychaudhuri R, Kulkarni S, Prassl R, Subramanian S, Korde A, Mutalik S. Architectured Therapeutic and Diagnostic Nanoplatforms for Combating SARS-CoV-2: Role of Inorganic, Organic, and Radioactive Materials. ACS Biomater Sci Eng 2021; 7:31-54. [PMID: 33371667 PMCID: PMC7783900 DOI: 10.1021/acsbiomaterials.0c01243] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 12/09/2020] [Indexed: 12/19/2022]
Abstract
Although extensive research is being done to combat SARS-CoV-2, we are yet far away from a robust conclusion or strategy. With an increased amount of vaccine research, nanotechnology has found its way into vaccine technology. Researchers have explored the use of various nanostructures for delivering the vaccines for enhanced efficacy. Apart from acting as delivery platforms, multiple studies have shown the application of inorganic nanoparticles in suppressing the growth as well as transmission of the virus. The present review gives a detailed description of various inorganic nanomaterials which are being explored for combating SARS-CoV-2 along with their role in suppressing the transmission of the virus either through air or by contact with inanimate surfaces. The review further discusses the use of nanoparticles for development of an antiviral coating that may decrease adhesion of SARS-CoV-2. A separate section has been included describing the role of nanostructures in biosensing and diagnosis of SARS-CoV-2. The role of nanotechnology in providing an alternative therapeutic platform along with the role of radionuclides in SARS-CoV-2 has been described briefly. Based on ongoing research and commercialization of this nanoplatform for a viral disease, the nanomaterials show the potential in therapy, biosensing, and diagnosis of SARS-CoV-2.
Collapse
Affiliation(s)
- Abhijeet Pandey
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Ajinkya N. Nikam
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Sadhana P. Mutalik
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Gasper Fernandes
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Ajjappla Basavaraj Shreya
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Bharath Singh Padya
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Ruchira Raychaudhuri
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Sanjay Kulkarni
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Ruth Prassl
- Gottfried
Schatz Research Centre for Cell Signalling, Metabolism and Aging, Medical University of Graz, 8036 Graz, Austria
| | - Suresh Subramanian
- Radiopharmaceuticals
Division, Bhabha Atomic Research Centre, Mumbai-400094, Maharashtra, India
| | - Aruna Korde
- Radioisotope
Products and Radiation Technology Section, International Atomic Energy Agency, 1400 Vienna, Austria
| | - Srinivas Mutalik
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| |
Collapse
|
4
|
Zhang T, Wen Z, Liu Y, Zhang Z, Xie Y, Sun X. Hybridized Nanogenerators for Multifunctional Self-Powered Sensing: Principles, Prototypes, and Perspectives. iScience 2020; 23:101813. [PMID: 33305177 DOI: 10.1016/j.isci.2020.101813] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Sensors are a key component of the Internet of Things (IoTs) to collect information of environments or objects. Considering the tremendous number and complex working conditions of sensors, multifunction and self-powered feathers are two basic requirements. Nanogenerators are a kind of devices based on the triboelectric, piezoelectric, or pyroelectric effects to harvest ambient energy and then converting to electricity. The hybridized nanogenerators that combined multiple effects in one device have great potential in multifunctional self-powered sensors because of the unique superiority such as generating electrical signals directly, responding to diverse stimuli, etc. This review aims at introducing the latest advancements of hybridized nanogenerators for multifunctional self-powered sensing. Firstly, the principles and sensor prototypes based on TENG are summarized. To avoid signal interference and energy insufficiently, the multifunctional self-powered sensors based on hybridized nanogenerators are reviewed. At last, the challenges and future development of multifunctional self-powered sensors have prospected.
Collapse
|
5
|
Nakamura M, Tada K, Kinoshita T, Bessho T, Nishiyama C, Takenaka I, Kimoto Y, Higashino Y, Sugimoto H, Segawa H. Perovskite/CIGS Spectral Splitting Double Junction Solar Cell with 28% Power Conversion Efficiency. iScience 2020; 23:101817. [PMID: 34095782 PMCID: PMC8164171 DOI: 10.1016/j.isci.2020.101817] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/21/2020] [Accepted: 11/12/2020] [Indexed: 11/30/2022] Open
Abstract
The highest theoretical efficiency of double junction solar cells is predicted for architectures with the bottom cell bandgap (E g ) of approximately 0.9-1.0 eV, which is lower than that of a typical Si cell (1.1 eV). Cu(In,Ga)(Se,S)2 (CIGS) solar cells exhibit a tunable E g depending on their elemental composition and depth profile. In this study, various CIGS solar cells with E g ranging from 1.02 to 1.14 eV are prepared and a spectrum splitting system is used to experimentally demonstrate the effect of using lower-E g cells as the bottom cell of two-junction solar cells. The four-terminal tandem cell configuration fabricated using a mixed-halide perovskite top cell (E g = 1.59 eV; stand-alone efficiency = 21.0%) and CIGS bottom cell (E g = 1.02 eV; stand-alone efficiency = 21.5%) with a 775-nm spectral splitting mirror exhibits an efficiency of 28.0% at the aperture area of 1 cm2.
Collapse
Affiliation(s)
- Motoshi Nakamura
- Advanced Technology Research Laboratories, Idemitsu Kosan Co.,Ltd., 123-1 Shimokawairi, Atsugi, Kanagawa 243-0206, Japan.,Research Center for Advanced Science and Technology (RCAST), the University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904, Japan
| | - Keishi Tada
- Department of General Systems Studies, Graduate School of Arts and Sciences, the University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Takumi Kinoshita
- Department of General Systems Studies, Graduate School of Arts and Sciences, the University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Takeru Bessho
- Research Center for Advanced Science and Technology (RCAST), the University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904, Japan
| | - Chie Nishiyama
- Research Center for Advanced Science and Technology (RCAST), the University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904, Japan
| | - Issei Takenaka
- Advanced Technology Research Laboratories, Idemitsu Kosan Co.,Ltd., 123-1 Shimokawairi, Atsugi, Kanagawa 243-0206, Japan
| | - Yoshinori Kimoto
- Advanced Technology Research Laboratories, Idemitsu Kosan Co.,Ltd., 123-1 Shimokawairi, Atsugi, Kanagawa 243-0206, Japan
| | - Yuta Higashino
- Advanced Technology Research Laboratories, Idemitsu Kosan Co.,Ltd., 123-1 Shimokawairi, Atsugi, Kanagawa 243-0206, Japan
| | - Hiroki Sugimoto
- Advanced Technology Research Laboratories, Idemitsu Kosan Co.,Ltd., 123-1 Shimokawairi, Atsugi, Kanagawa 243-0206, Japan
| | - Hiroshi Segawa
- Research Center for Advanced Science and Technology (RCAST), the University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904, Japan.,Department of General Systems Studies, Graduate School of Arts and Sciences, the University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
| |
Collapse
|
6
|
Li B, Li S, Wang B, Meng Z, Wang Y, Meng Q, Li C. Capture of Sulfur Mustard by Pillar[5]arene: From Host-Guest Complexation to Efficient Adsorption Using Nonporous Adaptive Crystals. iScience 2020; 23:101443. [PMID: 32829284 PMCID: PMC7452326 DOI: 10.1016/j.isci.2020.101443] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/17/2020] [Accepted: 08/05/2020] [Indexed: 12/23/2022] Open
Abstract
Sulfur mustard (SM) has been the most frequently used chemical warfare agent. Here, we present the efficient containment of SM and its simulants by per-ethylated pillar[5]arene (EtP5). EtP5 exhibited strong binding abilities toward SM and its simulants not only in solution but also in the solid state. The association constant (Ka) between SM and EtP5 was determined as (6.2 ± 0.6) × 103 M-1 in o-xylene-d10. Single crystal structure of SM@EtP5 showed that a 1:1 inclusion complex was formed, which was driven by multiple C-H···π/Cl/S and S···π interactions. In addition, activated crystal materials of EtP5 (EtP5α) could effectively adsorb SM simulants at solid-vapor phase; powder X-ray diffraction patterns and host-guest crystal structures indicated that the uptake process triggered a solid-state structural transformation. More interestingly, the captured guest molecules could be stably contained in EtP5α for at least 6 months in air at room temperature.
Collapse
Affiliation(s)
- Bin Li
- College of Science, Center for Supramolecular Chemistry and Catalysis, Shanghai University, Shanghai 200444, P. R. China
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China
| | - Shuo Li
- College of Science, Center for Supramolecular Chemistry and Catalysis, Shanghai University, Shanghai 200444, P. R. China
| | - Bin Wang
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China
| | - Zhao Meng
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Yongan Wang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Qingbin Meng
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Chunju Li
- College of Science, Center for Supramolecular Chemistry and Catalysis, Shanghai University, Shanghai 200444, P. R. China
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China
| |
Collapse
|
7
|
Chen X, Tang Z, Gao H, Chen S, Wang G. Phase Change Materials for Electro-Thermal Conversion and Storage: From Fundamental Understanding to Engineering Design. iScience 2020; 23:101208. [PMID: 32531748 PMCID: PMC7289750 DOI: 10.1016/j.isci.2020.101208] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/19/2020] [Accepted: 05/22/2020] [Indexed: 11/18/2022] Open
Abstract
Advanced functional electro-thermal conversion phase change materials (PCMs) can efficiently manage the energy conversion from electrical energy to thermal energy, thereby playing a significant role in sustainable energy utilization. Considering the inherent insulating properties of pristine PCMs, electrically conductive supporting materials are widely used to encapsulate PCMs to prepare composite PCMs for electro-thermal conversion and storage. Herein, we comprehensively review the recent advances in different electro-thermal conversion PCMs, mainly including carbon-based PCMs (carbon nanotubes [CNTs], graphene, biomass-derived carbon, graphite, highly graphitized carbon, and metal organic frameworks [MOFs]-derived carbon) and MXene-based PCMs. This review aims to provide an in-depth understanding of the electrothermal conversion mechanism and the relationships between structure design (random and array-oriented structure or single and hybrid supporting materials) and electrothermal properties, thereby contributing profound theoretical and experimental bases for the construction of high-performance electro-thermal conversion PCMs. Finally, we highlight the current challenges and future prospects.
Collapse
Affiliation(s)
- Xiao Chen
- Institute of Advanced Materials, Beijing Normal University, Beijing 100875, PR China.
| | - Zhaodi Tang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Hongyi Gao
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Siyuan Chen
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Ge Wang
- Institute of Advanced Materials, Beijing Normal University, Beijing 100875, PR China; Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China.
| |
Collapse
|
8
|
Zhong Y, Xia M, Chen Z, Gao P, Hintzen HTB, Wong WY, Wang J, Zhou Z. Pyrophosphate Phosphor Solid Solution with High Quantum Efficiency and Thermal Stability for Efficient LED Lighting. iScience 2020; 23:100892. [PMID: 32114380 PMCID: PMC7049664 DOI: 10.1016/j.isci.2020.100892] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/14/2020] [Accepted: 02/04/2020] [Indexed: 01/09/2023] Open
Abstract
Phosphors with high quantum efficiency and thermal stability are greatly desired for lighting industries. Based on the design strategy of solid solution, a series of deep-blue-emitting phosphors (Sr0.99-xBax)2P2O7:0.02Eu2+ (SBxPE x = 0-0.5) are developed. Upon excitation at 350 nm, the optimized SB0.3PE phosphor shows a relatively narrow full width at half maximum (FWHM = 32.7 nm) peaking at 420 nm, which matches well with the plant absorption in blue region. Moreover, this phosphor exhibits obvious enhancement of internal quantum efficiency (IQE) (from 74% to 100%) and thermal stability (from 88% to 108% of peak intensity and from 99% to 124% of integrated area intensity at 150°C) compared with the pristine one. The white LED devices using SB0.3PE as deep-blue-emitting component show good electronic properties, indicating that SB0.3PE is promising to be used in plant growth lighting, white LEDs, and other photoelectric applications.
Collapse
Affiliation(s)
- Yuan Zhong
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, P. R. China; Hunan Provincial Engineering Technology Research Center for Optical Agriculture, Changsha 410128, P. R. China
| | - Mao Xia
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, P. R. China; Hunan Provincial Engineering Technology Research Center for Optical Agriculture, Changsha 410128, P. R. China
| | - Zhi Chen
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, P. R. China
| | - Peixing Gao
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, P. R. China; Hunan Provincial Engineering Technology Research Center for Optical Agriculture, Changsha 410128, P. R. China
| | - H T Bert Hintzen
- Section Fundamental Aspects of Materials and Energy, Delft University of Technology, Delft, the Netherlands
| | - Wai-Yeung Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China.
| | - Jing Wang
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, P. R. China.
| | - Zhi Zhou
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, P. R. China; Hunan Provincial Engineering Technology Research Center for Optical Agriculture, Changsha 410128, P. R. China.
| |
Collapse
|
9
|
Ji J, Liu X, Jiang H, Duan M, Liu B, Huang H, Wei D, Li Y, Li M. Two-Stage Ultraviolet Degradation of Perovskite Solar Cells Induced by the Oxygen Vacancy-Ti 4+ States. iScience 2020; 23:101013. [PMID: 32299056 DOI: 10.1016/j.isci.2020.101013] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 02/20/2020] [Accepted: 03/20/2020] [Indexed: 11/29/2022] Open
Abstract
The failure of perovskite solar cells (PSCs) under ultraviolet (UV) irradiation is a serious barrier of commercial utilization. Here, a two-stage degradation process of TiO2-based PSCs is discovered under continuous UV irradiation in an inert atmosphere. In the first decay stage, oxygen vacancy-Ti3+ (Ti3+-VO) transform into active Ti4+-VO trap states under UV excitation and cause photocarrier loss. Furthermore, Ti4+-VO states can convert back into Ti3+-VO states through oxidizing I−, which result in the accumulation of I3−. Sequentially, the rapid decomposition of perovskite accelerated by increasing I3− replaces the photocarrier loss as the dominant mechanism leading to the second decay stage. Then, a universal method is proposed to improve the UV stability by blocking the transformation of Ti3+-VO states, which can be realized by polyethyleneimine ethoxylated (PEIE) modified layer. The optimized devices remain ∼75% of its initial efficiency (20.51%) under UV irradiation at 72 days, whereas the normal devices fail completely. A two-stage degradation process of TiO2-based PSCs under continuous UV irradiation The transformation of Ti3+-VO to Ti4+-VO states is responsible for the UV degradation A universal method to enhance the UV stability of PSCs was proposed
Collapse
|
10
|
Fu SS, Ren XY, Guo S, Lan G, Zhang ZM, Lu TB, Lin W. Synergistic Effect over Sub-nm Pt Nanocluster@MOFs Significantly Boosts Photo-oxidation of N-alkyl(iso)quinolinium Salts. iScience 2019; 23:100793. [PMID: 31958757 PMCID: PMC6992937 DOI: 10.1016/j.isci.2019.100793] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 12/10/2019] [Accepted: 12/18/2019] [Indexed: 11/17/2022] Open
Abstract
Quinolones and isoquinolones are of interest to pharmaceutical industry owing to their potent biological activities. Herein, we first encapsulated sub-nm Pt nanoclusters into Zr-porphyrin frameworks to afford an efficient photocatalyst Pt0.9@PCN-221. This catalyst can dramatically promote electron-hole separation and 1O2 generation to achieve synergistic effect first in the metal-organic framework (MOF) system, leading to the highest activity in photosynthesis of (iso)quinolones in >90.0% yields without any electronic sacrificial agents. Impressively, Pt0.9@PCN-221 was reused 10 times without loss of activity and can catalyze gram-scale synthesis of 1-methyl-5-nitroisoquinolinone at an activity of 175.8 g·gcat−1, 22 times higher than that of PCN-221. Systematic investigations reveal the contribution of synergistic effect of photogenerated electron, photogenerated hole, and 1O2 generation for efficient photo-oxidation, thus highlighting a new strategy to integrate multiple functional components into MOFs to synergistically catalyze complex photoreactions for exploring biologically active heterocyclic molecules. A state-of-the-art photocatalyst for preparation of bioactive (iso)quinolones Synergistic catalysis of photogenerated e−/h+ and 1O2 Sub-nm Pt0.9@PCN-221 with a high efficiency of e−-h+ separation and 1O2 generation
Collapse
Affiliation(s)
- Shan-Shan Fu
- Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Xiu-Ying Ren
- College of Chemistry, Northeast Normal University, Changchun 130024, P.R. China
| | - Song Guo
- Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
| | - Guangxu Lan
- Department of Chemistry, University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA
| | - Zhi-Ming Zhang
- Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China; College of Chemistry, Northeast Normal University, Changchun 130024, P.R. China.
| | - Tong-Bu Lu
- Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Wenbin Lin
- Department of Chemistry, University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA
| |
Collapse
|
11
|
Yan J, Zhao Y, Wang X, Xia S, Zhang Y, Han Y, Yu J, Ding B. Polymer Template Synthesis of Soft, Light, and Robust Oxide Ceramic Films. iScience 2019; 15:185-195. [PMID: 31077943 PMCID: PMC6514271 DOI: 10.1016/j.isci.2019.04.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 04/11/2019] [Accepted: 04/22/2019] [Indexed: 11/26/2022] Open
Abstract
Oxide ceramic materials underpin a wide variety of technologies. However, the inherent fragility of these materials limits their use in emerging fields like wearable electronics and soft energy storage devices. Here, we develop a sol-gel electrospinning technique followed by calcination to create a range of oxide ceramic nanofiber films that exhibit significant softness without fragility after various deformations. This approach causes the ceramic crystals to fuse together at a low temperature during their growth within the polymer nanofiber templates. All the synthesized ceramic films, from SiO2 to BaTiO3, Li0.33La0.56TiO3, and Li7La3Zr2O12, have silk-like softness of <31 mN, low density of <0.36 g/cm3 and robust fire resistance to 1,000°C. Fabricated separators based on these films display large electrolyte uptakes of >900% and high thermal insulation performance, enhancing the rate capability and safety of lithium batteries. The reported method allows scalable synthesis of soft oxide ceramic films with properties appealing for applications. A scalable method is developed for the fabrication of soft oxide ceramic films A wide variety of soft, light, and robust oxide ceramic films are fabricated A detailed soft deformation mechanism of the ceramic films is illustrated The soft ceramic films exhibit appealing properties for applications
Collapse
Affiliation(s)
- Jianhua Yan
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China; Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China.
| | - Yun Zhao
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - Xiao Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Shuhui Xia
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - Yuanyuan Zhang
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - Yuhui Han
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - Jianyong Yu
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China
| | - Bin Ding
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China.
| |
Collapse
|
12
|
Liu D, Yang C, Bates M, Lunt RR. Room Temperature Processing of Inorganic Perovskite Films to Enable Flexible Solar Cells. iScience 2018; 6:272-279. [PMID: 30240617 PMCID: PMC6137715 DOI: 10.1016/j.isci.2018.08.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Revised: 07/26/2018] [Accepted: 08/07/2018] [Indexed: 11/13/2022] Open
Abstract
Inorganic lead halide perovskite materials have attracted great attention recently due to their potential for greater thermal stability compared with hybrid organic perovskites. However, the high processing temperature to convert from the non-perovskite phase to the cubic perovskite phase in many of these systems has limited their application in flexible optoelectronic devices. Here, we report a room temperature processed inorganic perovskite solar cell (PSC) based on CsPbI2Br as the light harvesting layer. By combining this composition with key precursor solvents, we show that inorganic perovskite films can be prepared by the vacuum-assist method under room temperature conditions in air. Unencapsulated devices achieved power conversion efficiency up to 8.67% when measured under 1-sun irradiation. Exploiting this room temperature process, flexible inorganic PSCs based on an inorganic metal halide perovskite material are demonstrated.
Collapse
Affiliation(s)
- Dianyi Liu
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI 48824, USA
| | - Chenchen Yang
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI 48824, USA
| | - Matthew Bates
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI 48824, USA
| | - Richard R Lunt
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA.
| |
Collapse
|
13
|
Wang S, Zhao L, Zhang B, Ding J, Xie Z, Wang L, Wong WY. High-Energy-Level Blue Phosphor for Solution-Processed White Organic Light-Emitting Diodes with Efficiency Comparable to Fluorescent Tubes. iScience 2018; 6:128-137. [PMID: 30240606 PMCID: PMC6137322 DOI: 10.1016/j.isci.2018.07.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/19/2018] [Accepted: 07/19/2018] [Indexed: 10/28/2022] Open
Abstract
A high-energy-level blue phosphor FIr-p-OC8 has been developed for solution-processed white organic light-emitting diodes (WOLEDs) with comparable fluorescent tube efficiency. Benefiting from the electron-donating nature of the introduced alkoxy, FIr-p-OC8 shows not only efficient blue light but also elevated highest occupied molecular orbital/lowest unoccupied molecular orbital levels to well match the dendritic host H2. Consequently, the hole scattering between FIr-p-OC8 and H2 can be prevented to favor the direct exciton formation on the blue phosphor, leading to reduced driving voltage and thus improved power efficiency. By exploiting this approach, a maximum power efficiency of 68.5 lm W-1 is achieved for FIr-p-OC8-based white devices, slightly declining to 47.0 lm W-1 at a practical luminance of 1,000 cd m-2. This efficiency can be further raised to 96.3 lm W-1 @ 1,000 cd m-2 when a half-sphere is applied to increase light out-coupling. We believe that our results can compete with commercial fluorescent tubes, representing an important progress in solution-processed WOLEDs.
Collapse
Affiliation(s)
- Shumeng Wang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PRC
| | - Lei Zhao
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PRC
| | - Baohua Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PRC.
| | - Junqiao Ding
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PRC; University of Science and Technology of China, Hefei 230026, PRC.
| | - Zhiyuan Xie
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PRC; University of Science and Technology of China, Hefei 230026, PRC
| | - Lixiang Wang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PRC; University of Science and Technology of China, Hefei 230026, PRC
| | - Wai-Yeung Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, PRC; Institute of Molecular Functional Materials and Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Hong Kong, PRC.
| |
Collapse
|