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Mi F, Liu Z, Wang X, Wang Y, Yang J, Wang Z, Yin S, Fang X, Shu P, Zhang X, Wu C. Deep Red Light Driven Hydrogen Evolution by Heterojunction Polymer Dots for Diabetic Wound Healing. Angew Chem Int Ed Engl 2024; 63:e202402133. [PMID: 38708621 DOI: 10.1002/anie.202402133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/20/2024] [Accepted: 05/05/2024] [Indexed: 05/07/2024]
Abstract
We describe small heterojunction polymer dots (Pdots) with deep-red light catalyzed H2 generation for diabetic skin wound healing. The Pdots with donor/acceptor heterojunctions showed remarkably enhanced photocatalytic activity as compared to the donor or acceptor nanoparticles alone. We encapsulate the Pdots and ascorbic acid into liposomes to form Lipo-Pdots nanoreactors, which selectively scavenge ⋅OH radicals in live cells and tissues under 650 nm light illumination. The antioxidant capacity of the heterojunction Pdots is ~10 times higher than that of the single-component Pdots described previously. Under a total light dose of 360 J/cm2, the Lipo-Pdots nanoreactors effectively scavenged ⋅OH radicals and suppressed the expression of pro-inflammatory cytokines in skin tissues, thereby accelerating the healing of skin wounds in diabetic mice. This study provides a feasible solution for safe and effective treatment of diabetic foot ulcers.
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Affiliation(s)
- Feixue Mi
- Optical Molecule and Skin Imaging Joint Laboratory, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Zhao Liu
- HBN Research Institute and Biological Laboratory, Shenzhen Hujia Technology Co., Ltd., Shenzhen, Guangdong, 518000, China
| | - Xinyu Wang
- Optical Molecule and Skin Imaging Joint Laboratory, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Yingjie Wang
- Shenzhen Bay Laboratory, Shenzhen, Guangdong, 518132, China
| | - Junfeng Yang
- State Key Laboratory of Integrated Optoelectronic, College of Electronic Science and Engineering, Jilin University, Changchun, Jilin, 130012, China
| | - Zhe Wang
- State Key Laboratory of Integrated Optoelectronic, College of Electronic Science and Engineering, Jilin University, Changchun, Jilin, 130012, China
| | - Shengyan Yin
- State Key Laboratory of Integrated Optoelectronic, College of Electronic Science and Engineering, Jilin University, Changchun, Jilin, 130012, China
| | - Xiaofeng Fang
- Optical Molecule and Skin Imaging Joint Laboratory, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Peng Shu
- HBN Research Institute and Biological Laboratory, Shenzhen Hujia Technology Co., Ltd., Shenzhen, Guangdong, 518000, China
| | - Xuanjun Zhang
- Faculty of Health Sciences, University of Macau, Macau SAR, 999078, China
| | - Changfeng Wu
- Optical Molecule and Skin Imaging Joint Laboratory, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
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2
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Gawale Y, Palanisamy P, Lee HS, Chandra A, Kim HU, Ansari R, Chae MY, Kwon JH. Structural Optimization of BODIPY Derivatives: Achieving Stable and Long-Lived Green Emission in Hyperfluorescent OLEDs. ACS APPLIED MATERIALS & INTERFACES 2024; 16:22274-22281. [PMID: 38650524 DOI: 10.1021/acsami.4c02002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Boron dipyrromethene (BODIPY) derivatives are widely studied as terminal emitters in organic light-emitting diodes (OLED) due to their narrow emission and high photoluminescence quantum yield (PLQY). However, the strategy for precisely tuning their emission toward a high color purity is still challenging. Herein, we developed a new design strategy to regulate the emission of BODIPY derivatives by modifying the electronic and steric dominance using functionalities, such as nitrile, pentafluorophenyl, diethyl, and monobenzyl. These rational modifications yielded a series of four novel green BODIPY emitters, namely, tPN-BODIPY, tPPP-BODIPY, tPBn-BODIPY, and tPEN-BODIPY, each benefited with a tuned emissions range of 517 to 542 nm with a narrow fwhm of 25 nm and high photoluminescence quantum yield up to 96%. Among these synthesized BODIPYs, an unsymmetrical tPBn-BODIPY was chosen as a final dopant (FD) to explore its application in OLED devices. The fabricated TADF sensitized fluorescence-OLED (TSF-OLED) exhibits a narrow band pure green emission at 531 nm with corresponding CIE coordinates of (x, y) = (0.27, 0.68) and a maximum external quantum efficiency (EQE) of 20%. Furthermore, the TSF-OLED displayed an exceptionally prolonged device operational lifetime (LT90) of 210 h at an initial luminescence of 3000 cd m-2.
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Affiliation(s)
- Yogesh Gawale
- Organic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Paramasivam Palanisamy
- Organic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Hyun Seung Lee
- Organic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Ajeet Chandra
- Organic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Hae Ung Kim
- Organic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Rasheeda Ansari
- Organic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Mi Young Chae
- Organic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Jang Hyuk Kwon
- Organic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
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3
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Rosenkrans ZT, Hsu JC, Aluicio-Sarduy E, Barnhart TE, Engle JW, Cai W. Amplification of Cerenkov luminescence using semiconducting polymers for cancer theranostics. ADVANCED FUNCTIONAL MATERIALS 2023; 33:2302777. [PMID: 37942189 PMCID: PMC10629852 DOI: 10.1002/adfm.202302777] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Indexed: 11/10/2023]
Abstract
The therapeutic efficacy of photodynamic therapy is limited by the ability of light to penetrate tissues. Due to this limitation, Cerenkov luminescence (CL) from radionuclides has recently been proposed as an alternative light source in a strategy referred to as Cerenkov radiation induced therapy (CRIT). Semiconducting polymer nanoparticles (SPNs) have ideal optical properties, such as large absorption cross-sections and broad absorbance, which can be utilized to harness the relatively weak CL produced by radionuclides. SPNs can be doped with photosensitizers and have nearly 100% energy transfer efficiency by multiple energy transfer mechanisms. Herein, we investigated an optimized photosensitizer doped SPN as a nanosystem to harness and amplify CL for cancer theranostics. We found that semiconducting polymers significantly amplified CL energy transfer efficiency. Bimodal PET and optical imaging studies showed high tumor uptake and retention of the optimized SPNs when administered intravenously or intratumorally. Lastly, we found that photosensitizer doped SPNs have excellent potential as a cancer theranostics nanosystem in an in vivo tumor therapy study. Our study shows that SPNs are ideally suited to harness and amplify CL for cancer theranostics, which may provide a significant advancement for CRIT that are unabated by tissue penetration limits.
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Affiliation(s)
- Zachary T Rosenkrans
- University of Wisconsin-Madison, Department of Pharmaceutical Sciences, 600 Highland Ave., K6/562, Madison, WI 53792, USA
| | - Jessica C Hsu
- University of Wisconsin-Madison, Departments of Radiology and Medical Physics, Madison, WI 53705, USA
| | - Eduardo Aluicio-Sarduy
- University of Wisconsin-Madison, Departments of Radiology and Medical Physics, Madison, WI 53705, USA
| | - Todd E Barnhart
- University of Wisconsin-Madison, Departments of Radiology and Medical Physics, Madison, WI 53705, USA
| | - Jonathan W Engle
- University of Wisconsin-Madison, Departments of Radiology and Medical Physics, Madison, WI 53705, USA
- University of Wisconsin-Madison, Carbone Cancer Center, Madison, WI 53705, USA
| | - Weibo Cai
- University of Wisconsin-Madison, Department of Pharmaceutical Sciences, 600 Highland Ave., K6/562, Madison, WI 53792, USA
- University of Wisconsin-Madison, Departments of Radiology and Medical Physics, Madison, WI 53705, USA
- University of Wisconsin-Madison, Carbone Cancer Center, Madison, WI 53705, USA
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4
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Hamza AO, Bouillard JSG, Adawi AM. Förster Resonance Energy Transfer Rate and Efficiency in Plasmonic Nanopatch Antennas. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202100285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Jean-Sebastien G. Bouillard
- University of Hull Physics and Mathematics Cottingham RoadCottingham Road, HullHull Hu6 7RX Hull UNITED KINGDOM
| | - Ali M Adawi
- Hull university Physics and mathematics Cottingham Road Hu6 7RX Hull UNITED KINGDOM
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5
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Zhang Y, Wei J, Zhang D, Yin C, Li G, Liu Z, Jia X, Qiao J, Duan L. Sterically Wrapped Multiple Resonance Fluorophors for Suppression of Concentration Quenching and Spectrum Broadening. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202113206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yuewei Zhang
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of Chemistry Tsinghua University Beijing 100084 P. R. China
- Center for Flexible Electronics Technology Tsinghua University Beijing 100084 P. R. China
| | - Jinbei Wei
- Beijing National Laboratory for molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Dongdong Zhang
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of Chemistry Tsinghua University Beijing 100084 P. R. China
| | - Chen Yin
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of Chemistry Tsinghua University Beijing 100084 P. R. China
| | - Guomeng Li
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of Chemistry Tsinghua University Beijing 100084 P. R. China
| | - Ziyang Liu
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of Chemistry Tsinghua University Beijing 100084 P. R. China
| | - Xiaoqin Jia
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of Chemistry Tsinghua University Beijing 100084 P. R. China
| | - Juan Qiao
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of Chemistry Tsinghua University Beijing 100084 P. R. China
- Center for Flexible Electronics Technology Tsinghua University Beijing 100084 P. R. China
| | - Lian Duan
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of Chemistry Tsinghua University Beijing 100084 P. R. China
- Center for Flexible Electronics Technology Tsinghua University Beijing 100084 P. R. China
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6
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Zhang Y, Wei J, Zhang D, Yin C, Li G, Liu Z, Jia X, Qiao J, Duan L. Sterically Wrapped Multiple Resonance Fluorophors for Suppression of Concentration Quenching and Spectrum Broadening. Angew Chem Int Ed Engl 2021; 61:e202113206. [PMID: 34636127 DOI: 10.1002/anie.202113206] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Indexed: 11/07/2022]
Abstract
Multiple resonance (MR) emitters are promising for highly efficient organic light-emitting diodes (OLEDs) with narrowband emission; however, they still face intractable challenges with concentration-caused emission quenching, exciton annihilation, and spectral broadening. In this study, sterically wrapped MR dopants with a fluorescent MR core sandwiched by bulk substituents were developed to address the intractable challenges by reducing intermolecular interactions. Consequently, high photo-luminance quantum yields of ≥90 % and small full width at half maximums (FWHMs) of ≤25 nm over a wide range of dopant concentrations (1-20 wt %) were recorded. In addition, we demonstrated that the sandwiched MR emitter can effectively suppress Dexter interaction when doped in a thermally activated delayed fluorescence sensitizer, eliminating exciton loss through dopant triplet. Within the above dopant concentration range, the optimal emitter realizes remarkably high maximum external quantum efficiencies of 36.3-37.2 %, identical small FWHMs of 24 nm, and alleviated efficiency roll-offs in OLEDs.
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Affiliation(s)
- Yuewei Zhang
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China.,Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
| | - Jinbei Wei
- Beijing National Laboratory for molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Dongdong Zhang
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Chen Yin
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Guomeng Li
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Ziyang Liu
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Xiaoqin Jia
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Juan Qiao
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China.,Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
| | - Lian Duan
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China.,Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
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7
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Pyo K, Xu H, Han SM, Saxena S, Yoon SY, Wiederrecht G, Ramakrishna G, Lee D. Synthesis and Photophysical Properties of Light-Harvesting Gold Nanoclusters Fully Functionalized with Antenna Chromophores. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2004836. [PMID: 33559347 DOI: 10.1002/smll.202004836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 11/25/2020] [Indexed: 06/12/2023]
Abstract
The development of efficient light-harvesting systems is important to understand the key aspects of solar-energy conversion processes and to utilize them in various photonic applications. Here, atomically well-defined gold nanoclusters are reported as a new platform to fabricate artificial light-harvesting systems. An efficient amide coupling method is developed to synthesize water-soluble Au22 clusters fully protected with pyrene chromophores by taking advantage of their facile phase-transfer reaction. The synthesized Au22 clusters with densely packed 18 pyrene chromophores (Au22 -PyB18 ) exhibit triple-emission in blue, green, and red wavelength regions arising respectively from pyrene monomer, pyrene excimer, and Au22 emission, producing bright white light emission together. The photoluminescence of Au22 is enhanced by more than tenfold, demonstrating that pyrenes at the periphery efficiently channel the absorbed energy to the luminescent Au22 at the center. A combination of femtosecond transient absorption and anisotropy measurements of Au22 -PyB18 explicitly reveals three main decay components of 220 fs, 3.5 ps, and 160 ps that can be assigned to energy migration between pyrenes and energy transfer processes from pyrene monomer and excimer to the central Au22 , respectively.
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Affiliation(s)
- Kyunglim Pyo
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Hongmei Xu
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Sang Myeong Han
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Shivi Saxena
- Department of Chemistry, Western Michigan University, Kalamazoo, MI, 49008, USA
| | - Sook Young Yoon
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Gary Wiederrecht
- Center for Nanoscale Materials, Argonne National Laboratory, Chicago, IL, 60439, USA
| | - Guda Ramakrishna
- Department of Chemistry, Western Michigan University, Kalamazoo, MI, 49008, USA
| | - Dongil Lee
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
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8
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Zhang C, Lu Y, Liu Z, Zhang Y, Wang X, Zhang D, Duan L. A π-D and π-A Exciplex-Forming Host for High-Efficiency and Long-Lifetime Single-Emissive-Layer Fluorescent White Organic Light-Emitting Diodes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2004040. [PMID: 32893390 DOI: 10.1002/adma.202004040] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 07/22/2020] [Indexed: 06/11/2023]
Abstract
Exciplex-forming hosts with thermally activated delayed fluorescence (TADF) provide a viable opportunity to unlock the full potential of the yet-to-be improved power efficiencies (PEs) and stabilities of all-fluorescent white organic light-emitting diodes (WOLEDs), but this, however, is hindered by the lack of stable blue exciplexes. Here, an advanced exciplex system is proposed by incorporating bipolar charge-transport π-spacers into both the electron-donor (D) and the electron-accepter (A) to increase their distance for hypsochromic-shifted emission while maintaining the superior transporting ability. By using spirofluorene as the π-spacer, 3,3'-bicarbazole as the D-unit, and 2,4,6-triphenyl-1,3,5-triazine as the A-unit, a π-D and π-A exciplex with sky-blue emission and fast reverse intersystem crossing process is thereof constructed. Combining this exciplex-forming host, a blue TADF-sensitizer, and a yellow conventional fluorescent dopant in a single-emissive-layer, the fabricated warm-white-emissive device simultaneously exhibits a low driving voltage of 3.08 V, an external quantum efficiency of 21.4%, and a remarkable T80 (time to 80% of the initial luminance) of >8200 h at 1000 cd m-2 , accompanied by a new benchmark PE of 69.6 lm W-1 among all-fluorescent WOLEDs.
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Affiliation(s)
- Chen Zhang
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Yang Lu
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Ziyang Liu
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Yuewei Zhang
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Xuewen Wang
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200, P. R. China
| | - Dongdong Zhang
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Lian Duan
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
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9
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Song X, Zhang D, Lu Y, Yin C, Duan L. Understanding and Manipulating the Interplay of Wide-Energy-Gap Host and TADF Sensitizer in High-Performance Fluorescence OLEDs. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1901923. [PMID: 31265200 DOI: 10.1002/adma.201901923] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/16/2019] [Indexed: 06/09/2023]
Abstract
Comprising an emitting layer (EML) constituting a wide-energy-gap host, a thermally activated delayed fluorescence (TADF) sensitizer and a conventional fluorescent dopant, TADF-sensitizing-fluorescence organic light-emitting diodes (TSF-OLEDs) highly depend on component interplay to maximize their performance, which, however, is still under-researched. Taking the host type (TADF or non-TADF) and the recombination position (on the host or on the TADF sensitizer) into consideration, the interplay of host and TADF sensitizer is comprehensively studied and manipulated. A wide-energy-gap host with TADF and recombination of charges on it are both required to maximize device performances by triggering multiple sensitizing processes to eliminate exciton losses. Based on those findings, a maximum external quantum efficiency (EQE)/power efficiency (PE) of 23.2%/76.9 lm W-1 is realized with a newly developed TADF host, significantly outperforming the reference devices. Further device optimization leads to unprecedently high EQE/PE of 24.2%/89.5 lm W-1 and a half-lifetime of over 400 h at an initial luminance of 2000 cd m-2 , with the peak PE being the highest value among the reported TSF-OLEDs. This work reveals the importance of manipulating the component interplay in EMLs, opening a new avenue toward highly efficient TSF-OLEDs.
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Affiliation(s)
- Xiaozeng Song
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Dongdong Zhang
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Yang Lu
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Chen Yin
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Lian Duan
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
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10
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Li C, Zhang J, Zhang S, Zhao Y. Efficient Light‐Harvesting Systems with Tunable Emission through Controlled Precipitation in Confined Nanospace. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201812146] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Chuanqi Li
- National Engineering Research Center for BiomaterialsCollege of ChemistrySichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Jing Zhang
- National Engineering Research Center for BiomaterialsCollege of ChemistrySichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Shiyong Zhang
- National Engineering Research Center for BiomaterialsCollege of ChemistrySichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Yan Zhao
- Department of ChemistryIowa State University Ames IA 50011-3111 USA
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11
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Li C, Zhang J, Zhang S, Zhao Y. Efficient Light-Harvesting Systems with Tunable Emission through Controlled Precipitation in Confined Nanospace. Angew Chem Int Ed Engl 2018; 58:1643-1647. [PMID: 30418700 DOI: 10.1002/anie.201812146] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Indexed: 01/26/2023]
Abstract
Light harvesting is a key step in photosynthesis but creation of synthetic light-harvesting systems (LHSs) with high efficiencies has been challenging. When donor and acceptor dyes with aggregation-induced emission were trapped within the interior of cross-linked reverse vesicles, LHSs were obtained readily through spontaneous hydrophobically driven aggregation of the dyes in water. Aggregation in the confined nanospace was critical to the energy transfer and the light-harvesting efficiency. The efficiency of the excitation energy transfer (EET) reached 95 % at a donor/acceptor ratio of 100:1 and the energy transfer was clearly visible even at a donor/acceptor ratio of 10 000:1. Multicolor emission was achieved simply by tuning the donor/acceptor feed ratio in the preparation and the quantum yield of white light emission from the system was 0.38, the highest reported for organic materials in water to date.
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Affiliation(s)
- Chuanqi Li
- National Engineering Research Center for Biomaterials, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China
| | - Jing Zhang
- National Engineering Research Center for Biomaterials, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China
| | - Shiyong Zhang
- National Engineering Research Center for Biomaterials, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China
| | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, IA, 50011-3111, USA
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12
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Frausto F, Thomas SW. Tuning the Key Properties of Singlet Oxygen‐Responsive Acene‐Doped Conjugated Polymer Nanoparticles. CHEMPHOTOCHEM 2018. [DOI: 10.1002/cptc.201800039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Fanny Frausto
- Department of Chemistry Tufts University 62 Talbot Ave Medford MA 02155 USA
| | - Samuel W. Thomas
- Department of Chemistry Tufts University 62 Talbot Ave Medford MA 02155 USA
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13
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Shi Y, Cao X, Hu D, Gao H. Highly Branched Polymers with Layered Structures that Mimic Light‐Harvesting Processes. Angew Chem Int Ed Engl 2017; 57:516-520. [DOI: 10.1002/anie.201709492] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 10/17/2017] [Indexed: 01/10/2023]
Affiliation(s)
- Yi Shi
- Department of Chemistry and Biochemistry University of Notre Dame 305C McCourtney Hall Notre Dame IN 46556 USA
| | - Xiaosong Cao
- Department of Chemistry and Biochemistry University of Notre Dame 305C McCourtney Hall Notre Dame IN 46556 USA
| | - Daqiao Hu
- Department of Chemistry and Biochemistry University of Notre Dame 305C McCourtney Hall Notre Dame IN 46556 USA
| | - Haifeng Gao
- Department of Chemistry and Biochemistry University of Notre Dame 305C McCourtney Hall Notre Dame IN 46556 USA
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14
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Shi Y, Cao X, Hu D, Gao H. Highly Branched Polymers with Layered Structures that Mimic Light‐Harvesting Processes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709492] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Yi Shi
- Department of Chemistry and Biochemistry University of Notre Dame 305C McCourtney Hall Notre Dame IN 46556 USA
| | - Xiaosong Cao
- Department of Chemistry and Biochemistry University of Notre Dame 305C McCourtney Hall Notre Dame IN 46556 USA
| | - Daqiao Hu
- Department of Chemistry and Biochemistry University of Notre Dame 305C McCourtney Hall Notre Dame IN 46556 USA
| | - Haifeng Gao
- Department of Chemistry and Biochemistry University of Notre Dame 305C McCourtney Hall Notre Dame IN 46556 USA
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15
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Genovese D, Rampazzo E, Zaccheroni N, Montalti M, Prodi L. Collective Properties Extend Resistance to Photobleaching of Highly Doped PluS NPs. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700831] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Damiano Genovese
- Department of Chemistry “Giacomo Ciamician” Università di Bologna via Selmi 2 40126 Bologna Italy
| | - Enrico Rampazzo
- Department of Chemistry “Giacomo Ciamician” Università di Bologna via Selmi 2 40126 Bologna Italy
| | - Nelsi Zaccheroni
- Department of Chemistry “Giacomo Ciamician” Università di Bologna via Selmi 2 40126 Bologna Italy
| | - Marco Montalti
- Department of Chemistry “Giacomo Ciamician” Università di Bologna via Selmi 2 40126 Bologna Italy
| | - Luca Prodi
- Department of Chemistry “Giacomo Ciamician” Università di Bologna via Selmi 2 40126 Bologna Italy
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16
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Li Z, Lu J, Li S, Qin S, Qin Y. Orderly ultrathin films based on perylene/poly(N-vinyl carbazole) assembled with layered double hydroxide nanosheets: 2D fluorescence resonance energy transfer and reversible fluorescence response for volatile organic compounds. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:6053-6057. [PMID: 22936625 DOI: 10.1002/adma.201203040] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Indexed: 05/27/2023]
Abstract
Neutral poly(N-vinyl carbazole) (PVK) and perylene are coassembled within the interlayers of layered double hydroxide (LDH) nanosheets to form (perylene@PVK/LDH)(n) ultrathin films by the hydrogen-bond layer-by-layer assembly method. An efficient 2D fluorescence resonance energy transfer (FRET) process from PVK to perylene is demonstrated, and this FRET process can be inhibited/recovered reversibly by the adsorption/desorption of common volatile organic compounds (VOCs).
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Affiliation(s)
- Zhen Li
- State Key Laboratory of Chemical, Resource Engineering, Beijing University of Chemical Technology, Beijing, P R China
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