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Wang H, Zhang Z, Huang W, Chen P, He Y, Ming Z, Wang Y, Cheng Z, Shen J, Zhang Z. Programmable Optical Encryption Based on Electrical-Field-Controlled Exciton-Trion Transitions in Monolayer WS 2. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 39047193 DOI: 10.1021/acsami.4c06020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
Optical encryption is receiving much attention with the rapid growth of information technology. Conventional optical encryption usually relies on specific configurations, such as metasurface-based holograms and structure colors, not meeting the requirements of increasing dynamic and programmable encryption. Here, we report a programmable optical encryption approach using WS2/SiO2/Au metal-oxide-semiconductor (MOS) devices, which is based on the electrical-field-controlled exciton-trion transitions in monolayer WS2. The modulation depth of the MOS device reflection amplitude up to 25% related to the excitons ensures the fidelity of information, and the decryption based on the near excitonic resonance assures security. With such devices, we successfully demonstrate their applications in real-time encryption of ASCII codes and visual images. For the latter, it can be implemented at the pixel level. The strategy shows significant potential for low-cost, low-energy-consumption, easily integrated, and high-security programmable optical encryptions.
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Affiliation(s)
- Hu Wang
- School of Microelectronics, Fudan University, Shanghai 200433, China
| | - Zheng Zhang
- School of Microelectronics, Fudan University, Shanghai 200433, China
| | - Wentao Huang
- School of Microelectronics, Fudan University, Shanghai 200433, China
| | - Penghao Chen
- School of Microelectronics, Fudan University, Shanghai 200433, China
| | - Yaping He
- School of Microelectronics, Fudan University, Shanghai 200433, China
| | - Ziyu Ming
- School of Microelectronics, Fudan University, Shanghai 200433, China
| | - Yue Wang
- School of Microelectronics, Fudan University, Shanghai 200433, China
| | - Zengguang Cheng
- School of Microelectronics, Fudan University, Shanghai 200433, China
| | - Jiabin Shen
- School of Microelectronics, Fudan University, Shanghai 200433, China
- Institute of Optoelectronics, Fudan University, Shanghai 200433, China
| | - Zengxing Zhang
- School of Microelectronics, Fudan University, Shanghai 200433, China
- National Integrated Circuit Innovation Center, Shanghai 201203, China
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2
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Zhang T, Wu G, Wang J, Du R, Lin H, Ren Y, Tao L. Self-Powered ZnO@PdTe 2/Si Heterojunction Photodetector with an Ultrafast Response for Color Imaging and Optical Communication. ACS APPLIED MATERIALS & INTERFACES 2024; 16:33819-33828. [PMID: 38885614 DOI: 10.1021/acsami.4c06233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Broadband photodetectors have attracted much attention due to their multispectral response properties and show great potential in the fields of optical sensing, multispectral imaging, and optical communications. Palladium telluride (PdTe2) is highly competitive in broadband detection due to its tunable bandgap and nonlinear optical properties. However, the low response speed hinders further improvement in the performance of PdTe2-based broadband photodetectors. In this work, we present island-type ZnO@PdTe2 composites on Si as a heterojunction photodetector exhibiting highly sensitive photodetection capabilities in a wide band from the solar-blind region (254 nm) to the short-infrared (1.55 μm). Due to the island-type morphology of the ZnO@PdTe2 composites effectively enhancing light absorption and the ZnO@PdTe2/Si stacks forming a type-II heterojunction accelerating carrier separation, the devices have an ultrafast response (1.58/1.34 μs), a detectivity of up to 1.56 × 1013 Jones, and a sensitivity of up to 107 cm2/W. A triple-channel color imaging system and a dual-channel data transmission system were developed based on the excellent and stable performance of the device. This study demonstrates the great potential of ZnO@PdTe2/Si vertical heterojunction photodetectors for high-speed, wide-band, multiscenario optical communication.
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Affiliation(s)
- Tuo Zhang
- School of Materials Science and Engineering, Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing 211189, China
| | - Guodong Wu
- School of Materials Science and Engineering, Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing 211189, China
| | - Jingyao Wang
- School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, Shandong, China
| | - Ruxia Du
- School of Materials Science and Engineering, Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing 211189, China
| | - Huiwen Lin
- School of Materials Science and Engineering, Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing 211189, China
| | - Yuan Ren
- School of Materials Science and Engineering, Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing 211189, China
| | - Li Tao
- School of Materials Science and Engineering, Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing 211189, China
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Wang L, Wang L, Xu Y, Sun G, Nie W, Liu L, Kong D, Pan Y, Zhang Y, Wang H, Huang Y, Liu Z, Ren H, Wei T, Himeda Y, Fan Z. Schottky Junction and D-A 1 -A 2 System Dual Regulation of Covalent Triazine Frameworks for Highly Efficient CO 2 Photoreduction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2309376. [PMID: 37914405 DOI: 10.1002/adma.202309376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Indexed: 11/03/2023]
Abstract
Covalent triazine frameworks (CTFs) are emerging as a promising molecular platform for photocatalysis. Nevertheless, the construction of highly effective charge transfer pathways in CTFs for oriented delivery of photoexcited electrons to enhance photocatalytic performance remains highly challenging. Herein, a molecular engineering strategy is presented to achieve highly efficient charge separation and transport in both the lateral and vertical directions for solar-to-formate conversion. Specifically, a large π-delocalized and π-stacked Schottky junction (Ru-Th-CTF/RGO) that synergistically knits a rebuilt extended π-delocalized network of the D-A1 -A2 system (multiple donor or acceptor units, Ru-Th-CTF) with reduced graphene oxide (RGO) is developed. It is verified that the single-site Ru units in Ru-Th-CTF/RGO act as effective secondary electron acceptors in the lateral direction for multistage charge separation/transport. Simultaneously, the π-stacked and covalently bonded graphene is regarded as a hole extraction layer, accelerating the separation/transport of the photogenerated charges in the vertical direction over the Ru-Th-CTF/RGO Schottky junction with full use of photogenerated electrons for the reduction reaction. Thus, the obtained photocatalyst has an excellent CO2 -to-formate conversion rate (≈11050 µmol g-1 h-1 ) and selectivity (≈99%), producing a state-of-the-art catalyst for the heterogeneous conversion of CO2 to formate without an extra photosensitizer.
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Affiliation(s)
- Lu Wang
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Lin Wang
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Yuankang Xu
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Guangxun Sun
- College of Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Wenchao Nie
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Linghao Liu
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Debin Kong
- College of New Energy, China University of Petroleum (East China), Qingdao, 266580, China
| | - Yuan Pan
- College of Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Yuheng Zhang
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Hang Wang
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Yichao Huang
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Zheng Liu
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Hao Ren
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Tong Wei
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Yuichiro Himeda
- Global Zero Emission Research Center, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, 305-8569, Japan
| | - Zhuangjun Fan
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, China
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Yu S, Zhou Y, Gan M, Chen L, Xie Y, Zhong Y, Feng Q, Chen C. Lignocellulose-Based Optical Biofilter with High Near-Infrared Transmittance via Lignin Capturing-Fusing Approach. RESEARCH (WASHINGTON, D.C.) 2023; 6:0250. [PMID: 37869743 PMCID: PMC10585486 DOI: 10.34133/research.0250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 09/25/2023] [Indexed: 10/24/2023]
Abstract
Near-infrared (NIR) transparent optical filters show great promise in night vision and receiving windows. However, NIR optical filters are generally prepared by laborious, environmentally unfriendly processes that involve metal oxides or petroleum-based polymers. We propose a lignin capturing-fusing approach to manufacturing optical biofilters based on molecular collaboration between lignin and cellulose from waste agricultural biomass. In this process, lignin is captured via self-assembly in a cellulose network; then, the lignin is fused to fill gaps and hold the cellulose fibers tightly. The resulting optical biofilter featured a dense structure and smooth surface with NIR transmittance of ~90%, ultralow haze of close to 0%, strong ultraviolet-visible light blocking (~100% at 400 nm and 57.58% to 98.59% at 550 nm). Further, the optical biofilter has comprehensive stability, including water stability, solvent stability, thermal stability, and environmental stability. Because of its unique properties, the optical biofilter demonstrates potential applications in the NIR region, such as an NIR-transmitting window, NIR night vision, and privacy protection. These applications represent a promising route to produce NIR transparent optical filters starting from lignocellulose biomass waste.
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Affiliation(s)
- Shixu Yu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, China
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Yifang Zhou
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Meixue Gan
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, China
| | - Lu Chen
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Yimin Xie
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, China
| | - Yuning Zhong
- Hubei Open University, Wuhan 430074, China
- Hubei Open University, Wuhan 430074, China
| | - Qinghua Feng
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, China
- Hubei Open University, Wuhan 430074, China
| | - Chaoji Chen
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
- Hubei Open University, Wuhan 430074, China
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Tang J, Shao L, Liu J, Zheng Q, Song X, Yi L, Wang M. Hydrogen-bonded organic framework-stabilized charge transfer cocrystals for NIR-II photothermal cancer therapy. J Mater Chem B 2023; 11:8649-8656. [PMID: 37623744 DOI: 10.1039/d3tb01475d] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
Charge-transfer (CT) cocrystals consisting of an electron donor and acceptor have gained attention for designing photothermal (PT) conversion materials with potential for biomedical and therapeutic use. However, the applicability of CT cocrystals is limited by their low stability and aqueous dispersity in biological settings. In this study, we present the self-assembly of CT cocrystals within hydrogen-bonded organic frameworks (HOFs), which not only allows for the dispersion and stabilization of cocrystals in aqueous solution but also promotes the CT interaction within the confined space of HOFs for photothermal conversion. We demonstrate that the CT interaction-driven self-assembly of tetrathiafulvalene (TTF) and tetracyanoquinodimethane (TCNQ) with PFC-1 HOFs results in the formation of cocrystal-encapsulated TQC@PFC-1 while retaining the crystalline structure of the cocrystal and PFC-1. TQC@PFC-1, in particular, exhibits significant absorption in the second near-infrared region (NIR-II) and excellent photothermal conversion efficiency, as high as 32%. Cellular delivery studies show that TQC@PFC-1 can be internalized in different types of cancer cells, leading to an effective NIR-II photothermal therapy effect both in cultured cells and in vivo. We anticipate that the strategy of self-assembly and stabilization of CT cocrystals in nanoscale HOFs opens the path for tuning their photophysical properties and interfacing cocrystals with biological settings for photothermal therapeutic applications.
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Affiliation(s)
- Jiakang Tang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Leihou Shao
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ji Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qizhen Zheng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xinyi Song
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, School of Chemistry, Xiangtan University, Xiangtan 411105, P. R. China.
| | - Lanhua Yi
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, School of Chemistry, Xiangtan University, Xiangtan 411105, P. R. China.
| | - Ming Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
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Kamino S, Uchiyama M. Xanthene-based functional dyes: towards new molecules operating in the near-infrared region. Org Biomol Chem 2023; 21:2458-2471. [PMID: 36661341 DOI: 10.1039/d2ob02208g] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Xanthene-based functional dyes have diverse applications in life science and materials science. A current challenge is to develop new dyes with suitable physicochemical properties, including near-infrared (NIR) operation, for advanced biological applications such as medical diagnostics and molecular imaging. In this review, we first present an overview of xanthene-based functional dyes and then focus on synthetic strategies for modulating the absorption and fluorescence of dyes that operate in the NIR wavelength region with bright emission and good photostability. We also introduce our work on aminobenzopyranoxanthenes (ABPXs) and bridged tetra-aryl-p-quinodimethanes (BTAQs) as new xanthene-based far-red (FR)/NIR absorbing/emitting molecules whose absorption/fluorescence wavelengths change in response to external stimuli.
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Affiliation(s)
- Shinichiro Kamino
- School of Pharmaceutical Sciences, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya 464-8650, Japan.
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
- Research Initiative for Supra-Materials (RISM), Shinshu University, 3-15-1 Tokita, Ueda, Japan
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