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Recent update on the role of N-methyl glycine as a building block for the construction of N-heterocyclic frameworks. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Xu Y, Zhou H, Duan P, Shan B, Xu W, Wang J, Liu M, Zhang F, Sun Q. Improving the Efficiency of Organic Solar Cells with Methionine as Electron Transport Layer. Molecules 2022; 27:molecules27196363. [PMID: 36234900 PMCID: PMC9572969 DOI: 10.3390/molecules27196363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 09/20/2022] [Accepted: 09/21/2022] [Indexed: 11/16/2022] Open
Abstract
Interface modification is an important way to get better performance from organic solar cells (OSCs). A natural biomolecular material methionine was successfully applied as the electron transport layer (ETL) to the inverted OSCs in this work. A series of optical, morphological, and electrical characterizations of thin films and devices were used to analyze the surface modification effects of methionine on zinc oxide (ZnO). The analysis results show that the surface modification of ZnO with methionine can cause significantly reduced surface defects for ZnO, optimized surface morphology of ZnO, improved compatibility between ETL and the active layer, better-matched energy levels between ETL and the acceptor, reduced interface resistance, reduced charge recombination, and enhanced charge transport and collection. The power conversion efficiency (PCE) of OSCs based on PM6:BTP-ec9 was improved to 15.34% from 14.25% by modifying ZnO with methionine. This work shows the great application potential of natural biomolecule methionine in OSCs.
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Affiliation(s)
- Yujie Xu
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
| | - Hang Zhou
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
| | - Pengyi Duan
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
| | - Baojie Shan
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
| | - Wenjing Xu
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China
| | - Jian Wang
- College of Physics and Electronic Engineering, Taishan University, Taian 271021, China
| | - Mei Liu
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
- Correspondence: (M.L.); (F.Z.); (Q.S.)
| | - Fujun Zhang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China
- Correspondence: (M.L.); (F.Z.); (Q.S.)
| | - Qianqian Sun
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
- Correspondence: (M.L.); (F.Z.); (Q.S.)
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Dagar J, Brown TM. Biological/metal oxide composite transport layers cast from green solvents for boosting light harvesting response of organic photovoltaic cells indoors. NANOTECHNOLOGY 2022; 33:405404. [PMID: 35700718 DOI: 10.1088/1361-6528/ac7883] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
Organic solar cells with biological/metal-oxide electron transport layers (ETLs), consisting of a ZnO compact layer covered by a thin DNA layer, both of which deposited with green solvents (water or water/alcohols mixtures) are presented for application under low intensity indoor lighting. Under white LED lamp (200, 400 lx), photovoltaic cells with P3HT:PC70BM polymer semiconductor blends delivered an average maximum power density (MPD) of 8.7μW cm-2, corresponding to a power conversion efficiency, PCE, of = 8.56% (PCE of best cell was 8.74%). The ZnO/DNA bilayer boosted efficiency by 68% and 13% in relative terms compared to cells made with DNA-only and ZnO-only ETLs at 400 lx. Photovoltaic cells with ZnO/DNA composite ETLs based on PTB7:PC70BM blends, that absorb a broader range of the indoor lighting spectrum, delivered MPDs of 16.2μW cm-2with an estimated average PCE of 14.3% (best cell efficiency of 15.8%) at 400 lx. The best efficiencies for cells fabricated on flexible plastic substrates were 11.9% at 400 lx. This is the first report in which polymer photovoltaics incorporating biological materials have shown to increment performance at these low light levels and work very efficiently under indoor artificial light illumination. The finding can be useful for the production of more bio-compatible photovoltaics as well as bio-sensing devices based on organic semiconductors.
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Affiliation(s)
- Janardan Dagar
- CHOSE (Centre for Hybrid and Organic Solar Energy), Department of Electronic Engineering, University of Rome Tor Vergata, Via del Politecnico 1, I-00133 Rome, Italy
- Helmholtz-Zentrum Berlin, HySPRINT Innovation Lab, Kekuléstrasse 5, D-12489 Berlin, Germany
| | - Thomas M Brown
- CHOSE (Centre for Hybrid and Organic Solar Energy), Department of Electronic Engineering, University of Rome Tor Vergata, Via del Politecnico 1, I-00133 Rome, Italy
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Sun Q, Xu Y, Gao Z, Zhou H, Zhang Q, Xu R, Zhang C, Yao H, Liu M. High-Performance Surface-Enhanced Raman Scattering Substrates Based on the ZnO/Ag Core-Satellite Nanostructures. NANOMATERIALS 2022; 12:nano12081286. [PMID: 35457994 PMCID: PMC9027200 DOI: 10.3390/nano12081286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/01/2022] [Accepted: 04/08/2022] [Indexed: 12/10/2022]
Abstract
Recently, hierarchical hybrid structures based on the combination of semiconductor micro/nanostructures and noble metal nanoparticles have become a hot research topic in the area of surface-enhanced Raman scattering (SERS). In this work, two core-satellite nanostructures of metal oxide/metal nanoparticles were successfully introduced into SERS substrates, assembling monodispersed small silver nanoparticles (Ag NPs) on large polydispersed ZnO nanospheres (p-ZnO NSs) or monodispersed ZnO nanospheres (m-ZnO NSs) core. The p-ZnO NSs and m-ZnO NSs were synthesized by the pyrolysis method without any template. The Ag NPs were prepared by the thermal evaporation method without any annealing process. An ultralow limit of detection (LOD) of 1 × 10−13 M was achieved in the two core-satellite nanostructures with Rhodamine 6G (R6G) as the probe molecule. Compared with the silicon (Si)/Ag NPs substrate, the two core-satellite nanostructures of Si/p-ZnO NSs/Ag NPs and Si/m-ZnO NSs/Ag NPs substrates have higher enhancement factors (EF) of 2.6 × 108 and 2.5 × 108 for R6G as the probe molecule due to the enhanced electromagnetic field. The two core-satellite nanostructures have great application potential in the low-cost massive production of large-area SERS substrates due to their excellent SERS effect and simple preparation process without any template.
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Affiliation(s)
- Qianqian Sun
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Y.X.); (Z.G.); (H.Z.); (Q.Z.); (R.X.); (C.Z.)
- Correspondence: (Q.S.); (H.Y.); (M.L.)
| | - Yujie Xu
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Y.X.); (Z.G.); (H.Z.); (Q.Z.); (R.X.); (C.Z.)
| | - Zhicheng Gao
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Y.X.); (Z.G.); (H.Z.); (Q.Z.); (R.X.); (C.Z.)
| | - Hang Zhou
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Y.X.); (Z.G.); (H.Z.); (Q.Z.); (R.X.); (C.Z.)
| | - Qian Zhang
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Y.X.); (Z.G.); (H.Z.); (Q.Z.); (R.X.); (C.Z.)
| | - Ruichong Xu
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Y.X.); (Z.G.); (H.Z.); (Q.Z.); (R.X.); (C.Z.)
| | - Chao Zhang
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Y.X.); (Z.G.); (H.Z.); (Q.Z.); (R.X.); (C.Z.)
| | - Haizi Yao
- Key Laboratory of Smart Lighting in Henan Province, School of Energy Engineering, Huanghuai University, Zhumadian 463000, China
- Correspondence: (Q.S.); (H.Y.); (M.L.)
| | - Mei Liu
- Collaborative Innovation Center of Light Manipulations and Applications in Universities of Shandong, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (Y.X.); (Z.G.); (H.Z.); (Q.Z.); (R.X.); (C.Z.)
- Correspondence: (Q.S.); (H.Y.); (M.L.)
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