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Xiong Z, Wu L, Zhou X, Yang S, Liu Z, Liu W, Zhao J, Li W, Yu C, Yao K. Constructing tin oxides Interfacial Layer with Gradient Compositions for Efficient Perovskite/Silicon Tandem Solar Cells with Efficiency Exceeding 28. Small 2024; 20:e2308024. [PMID: 37992243 DOI: 10.1002/smll.202308024] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/31/2023] [Indexed: 11/24/2023]
Abstract
Atomic layer deposition (ALD) growth of conformal thin SnOx films on perovskite absorbers offers a promising method to improve carrier-selective contacts, enable sputter processing, and prevent humidity ingress toward high-performance tandem perovskite solar cells. However, the interaction between perovskite materials and reactive ALD precursor limits the process parameters of ALD-SnOx film and requires an additional fullerene layer. Here, it demonstrates that reducing the water dose to deposit SnOx can reduce the degradation effect upon the perovskite underlayer while increasing the water dose to promote the oxidization can improve the electrical properties. Accordingly, a SnOx buffer layer with a gradient composition structure is designed, in which the compositionally varying are achieved by gradually increasing the oxygen source during the vapor deposition from the bottom to the top layer. In addition, the gradient SnOx structure with favorable energy funnels significantly enhances carrier extraction, further minimizing its dependence on the fullerene layer. Its broad applicability for different perovskite compositions and various textured morphology is demonstrated. Notably, the design boosts the efficiencies of perovskite/silicon tandem cells (1.0 cm2) on industrially textured Czochralski (CZ) silicon to a certified efficiency of 28.0%.
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Affiliation(s)
- Zhijun Xiong
- Institute of Photovoltaics, School of Physics and Materials Science, Nanchang University, Nanchang, 330031, China
| | - Long Wu
- Institute of Photovoltaics, School of Physics and Materials Science, Nanchang University, Nanchang, 330031, China
| | - Xiaoheng Zhou
- Institute of Photovoltaics, School of Physics and Materials Science, Nanchang University, Nanchang, 330031, China
| | - Shaofei Yang
- Suzhou Maxwell Technologies Co., Ltd., Suzhou, 215200, China
| | - Zhiliang Liu
- Institute of Photovoltaics, School of Physics and Materials Science, Nanchang University, Nanchang, 330031, China
- Suzhou Maxwell Technologies Co., Ltd., Suzhou, 215200, China
| | - Wentao Liu
- Institute of Photovoltaics, School of Physics and Materials Science, Nanchang University, Nanchang, 330031, China
| | - Jie Zhao
- Institute of Photovoltaics, School of Physics and Materials Science, Nanchang University, Nanchang, 330031, China
| | - Wei Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Cao Yu
- Suzhou Maxwell Technologies Co., Ltd., Suzhou, 215200, China
| | - Kai Yao
- Institute of Photovoltaics, School of Physics and Materials Science, Nanchang University, Nanchang, 330031, China
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Lei M, Liao H, Wang S, Zhou H, Zhu J, Wan H, Payne GF, Liu C, Qu X. Electro-Sorting Create Heterogeneity: Constructing A Multifunctional Janus Film with Integrated Compositional and Microstructural Gradients for Guided Bone Regeneration. Adv Sci (Weinh) 2024; 11:e2307606. [PMID: 38225697 DOI: 10.1002/advs.202307606] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/25/2023] [Indexed: 01/17/2024]
Abstract
Biology remains the envy of flexible soft matter fabrication because it can satisfy multiple functional needs by organizing a small set of proteins and polysaccharides into hierarchical systems with controlled heterogeneity in composition and microstructure. Here, it is reported that controlled, mild electronic inputs (<10 V; <20 min) induce a homogeneous gelatin-chitosan mixture to undergo sorting and bottom-up self-assembly into a Janus film with compositional gradient (i.e., from chitosan-enriched layer to chitosan/gelatin-contained layer) and tunable dense-porous gradient microstructures (e.g., porosity, pore size, and ratio of dense to porous layers). This Janus film performs is shown multiple functions for guided bone regeneration: the integration of compositional and microstructural features confers flexible mechanics, asymmetric properties for interfacial wettability, molecular transport (directional growth factor release), and cellular responses (prevents fibroblast infiltration but promotes osteoblast growth and differentiation). Overall, this work demonstrates the versatility of electrofabrication for the customized manufacturing of functional gradient soft matter.
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Affiliation(s)
- Miao Lei
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of materials science and engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Haitao Liao
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of materials science and engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Shijia Wang
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of materials science and engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Hang Zhou
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of materials science and engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Jianwei Zhu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of materials science and engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Haoran Wan
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of materials science and engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Gregory F Payne
- Institute for Bioscience and Biotechnology Research and Robert E. Fischell Biomedical Device Institute, 5118 A. James Clark Hall, College Park, Maryland, 20742, USA
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of materials science and engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Xue Qu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of materials science and engineering, East China University of Science and Technology, Shanghai, 200237, China
- Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell Metabolism, East China University of Science and Technology, Shanghai, 200237, China
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Ding C, Lu T, Wazir N, Ma W, Guo S, Xin Y, Li A, Liu R, Zou B. New Type of Thermoelectric CdSSe Nanowire Chip. ACS Appl Mater Interfaces 2021; 13:30959-30966. [PMID: 34164987 DOI: 10.1021/acsami.1c04206] [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] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Facing the increasingly serious problem of environmental pollution and energy waste, the thermoelectric generator has been attracting more and more attention owing to its advantages including low cost, no pollution, and good stability. The family of thermoelectric material is constantly extended with enhanced performance. Note that nanostructuring can enhance thermoelectric performance. However, the most recent excellent material with effective thermoelectric transformation reported from bulk materials has definite benefits to the practical application compared to nanomaterials. In this work, a nanostructure integrated macroscale thermoelectric chip, that is an alloyed band gap gradient macroscale chip (1.0 cm × 2.0 cm) composed of CdSSe nanowires, has been proven as an excellent thermoelectric generator for the first time. A high Seebeck coefficient of -152.4 μV/K and the average output voltage of 10.8 mV are obtained after optimizing the electrode patterns and distance between electrodes. More interestingly, upon illumination by white light from a xenon lamp, a photo-thermoelectric output voltage is greatly elevated to 45 mV due to the high concentration of photogenerated carriers. The CdSSe thermoelectric chip also shows good repeatability and high stability with a relative error of <6%. No study on the thermoelectric performance of such an alloyed band gap gradient macroscale chip is mentioned before. The results illustrate a bright avenue to realize a type of light-modulated macroscale thermoelectric chips by nanostructure, allowing such kinds of CdSSe chips to be used to generate electric energy in the near future.
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Affiliation(s)
- Chunjie Ding
- Beijing Key Lab of Nano-photonics and Ultrafine Optoelectronic Systems School of Physics Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Tianqi Lu
- Beijing Key Lab of Nano-photonics and Ultrafine Optoelectronic Systems School of Physics Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Nasrullah Wazir
- Beijing Key Lab of Nano-photonics and Ultrafine Optoelectronic Systems School of Physics Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Weifeng Ma
- Beijing Key Lab of Nano-photonics and Ultrafine Optoelectronic Systems School of Physics Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Shuai Guo
- Beijing Key Lab of Nano-photonics and Ultrafine Optoelectronic Systems School of Physics Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Ye Xin
- Beijing Key Lab of Nano-photonics and Ultrafine Optoelectronic Systems School of Physics Beijing Institute of Technology, Beijing 100081, P. R. China
| | - An Li
- Beijing Key Lab of Nano-photonics and Ultrafine Optoelectronic Systems School of Physics Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Ruibin Liu
- Beijing Key Lab of Nano-photonics and Ultrafine Optoelectronic Systems School of Physics Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Bingsuo Zou
- Beijing Key Lab of Nano-photonics and Ultrafine Optoelectronic Systems School of Physics Beijing Institute of Technology, Beijing 100081, P. R. China
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