1
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Zhang Z, Tang Z, Wang K, Wang P, Yang J. Effect of steric hindrance and number of substituents on the transfer and interface properties of Y-shaped hole-transporting materials for perovskite solar cells. Phys Chem Chem Phys 2023; 25:25850-25861. [PMID: 37724976 DOI: 10.1039/d3cp03322h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
Alkyl sulfoxide groups were introduced into the branch chain terminals of a hole-transporting material (HTM) Z34 with different numbers and positions to design four new Y-shaped HTMs: ZT1, ZT2, ZT3 and ZT4. The effects of steric hindrance and number of substituents on the transfer and interface properties of the Y-shaped HTMs were investigated theoretically. Calculations reveal that the introduction of alkyl sulfoxide increases the distribution of intramolecular holes and orbital overlap between the HOMOs of the dimers. The electronic coupling was greatly improved owing to the increased distribution of holes and orbital overlap. ZT1 shows small steric hindrance when one alkyl sulfoxide is introduced into the top branch chain, which leads to translation π-π stacking. ZT2 and ZT4 show slightly greater steric hindrance when two or four alkyl sulfoxide groups are introduced into the side branch chains, which leads to face-to-face stacking. While ZT3 shows large steric hindrance when three alkyl sulfoxide groups are introduced into the top and side branch chains, which causes head-to-head stacking. With the increase in number of alkyl sulfoxide groups, the steric hindrance of the molecule increases and the hole mobility decreases. ZT1 achieves the highest hole mobility (2.63 × 10-2 m2 V-1 s-1) that is two orders of magnitude higher than that of Z34 (1.36 × 10-4 m2 V-1 s-1) owing to the optimal balance between the number of alkyl sulfoxide groups and steric hindrance. The HTM/CH3NH3PbI3 adsorbed system was also simulated to characterize the interface properties. Enhanced interface interaction was achieved in the HTM/perovskite systems of ZT2 and ZT3. The orbital distribution of the HTM/perovskite cluster indicates that the new HTMs can promote hole migration and prevent internal electron-hole recombination. The present work not only evaluates the reliable relationship between the structure and properties of new HTMs, but also provides a valuable design strategy for efficient Y-shaped HTMs.
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Affiliation(s)
- Zemin Zhang
- School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui, 553004, China.
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Zetian Tang
- School of Physics and Electrical Engineering, Liupanshui Normal University, Liupanshui 553004, China
| | - Keliang Wang
- School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui, 553004, China.
| | - Ping Wang
- School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui, 553004, China.
| | - Jianfa Yang
- School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui, 553004, China.
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2
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Thermal imaging and deep optical and electrochemical study of C70 fullerene derivatives with thiophene, pyrrolidine or indene moieties along with electropolymerization with thiophene substituted imine: Blends with P3HT and PTB7. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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3
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Liu F, Xing Z, Ren Y, Huang RJ, Xu PY, Xie FF, Li SH, Zhong X. Tailoring Functional Terminals on Solution-Processable Fullerene Electron Transporting Materials for High Performance Perovskite Solar Cells. NANOMATERIALS 2022; 12:nano12071046. [PMID: 35407164 PMCID: PMC9000481 DOI: 10.3390/nano12071046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/13/2022] [Accepted: 03/15/2022] [Indexed: 01/25/2023]
Abstract
Widely known as an excellent electron transporting material (ETM), pristine fullerene C60 plays a critical role in improving the photovoltaic performance of inverted structure perovskite solar cells (PSCs). However, the imperfect perovskite/C60 interface significantly limits the promotion of device performance and stability due to the weak coordination interactions between bare carbon cages and perovskite. Here, we designed and synthesized three functionalized fulleropyrrolidine ETMs (abbreviated as CEP, CEPE, and CECB), each of which was modified with the same primary terminal (cyanoethyl) and various secondary terminals (phenyl, phenethyl, and chlorobutyl). The resulting CECB-based PSC has a power conversion efficiency (PCE) over 19% and exceptional photo-stability over 1800 h. This work provides significant insight into the targeted terminal design of novel fullerene ETMs for efficient and stable PSCs.
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Affiliation(s)
- Fu Liu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China; (F.L.); (Y.R.); (R.-J.H.); (X.Z.)
| | - Zhou Xing
- Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School, Peking University, Shenzhen 518055, China
- Correspondence: (Z.X.); (S.-H.L.)
| | - Ya Ren
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China; (F.L.); (Y.R.); (R.-J.H.); (X.Z.)
| | - Rong-Jiao Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China; (F.L.); (Y.R.); (R.-J.H.); (X.Z.)
| | - Piao-Yang Xu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; (P.-Y.X.); (F.-F.X.)
| | - Fang-Fang Xie
- State Key Laboratory for Physical Chemistry of Solid Surfaces, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; (P.-Y.X.); (F.-F.X.)
| | - Shu-Hui Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China; (F.L.); (Y.R.); (R.-J.H.); (X.Z.)
- Correspondence: (Z.X.); (S.-H.L.)
| | - Xinxian Zhong
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China; (F.L.); (Y.R.); (R.-J.H.); (X.Z.)
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4
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Fernandez-Delgado O, Puente Santiago AR, Galindo Betancourth J, Sanad MF, Sreenivasan ST, Echegoyen L. Diazonium functionalized fullerenes: a new class of efficient molecular catalysts for the hydrogen evolution reaction. NANOSCALE 2022; 14:3858-3864. [PMID: 35199813 DOI: 10.1039/d1nr05498h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Considerable efforts are being made to find cheaper and more efficient alternatives to the currently commercially available catalysts based on precious metals for the Hydrogen Evolution Reaction (HER). In this context, fullerenes have started to gain attention due to their suitable electronic properties and relatively easy functionalization. We found that the covalent functionalization of C60, C70 and Sc3N@IhC80 with diazonium salts endows the fullerene cages with ultra-active charge polarization centers, which are located near the carbon-diazonium bond and improve the efficiency towards the molecular generation of hydrogen. To support our findings, Electrochemical Impedance Spectroscopy (EIS), double layer capacitance (Cdl) and Mott-Schottky approximation were performed. Among all the functionalized fullerenes, DPySc3N@IhC80 exhibited a very low onset potential (-0.025 V vs. RHE) value, which is due to the influence of the inner cluster on the extra improvement of the electronic density states of the catalytic sites. For the first time, the covalent assembly of fullerenes and diazonium groups was used as an electron polarization strategy to build superior molecular HER catalytic systems.
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Affiliation(s)
- Olivia Fernandez-Delgado
- Department of Chemistry and Biochemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, USA.
| | - Alain R Puente Santiago
- Department of Chemistry and Biochemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, USA.
| | - Jolaine Galindo Betancourth
- Department of Chemistry and Biochemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, USA.
- Department of Chemistry, Universidad del Valle, Cali, Colombia
| | - Mohamed F Sanad
- Department of Chemistry and Biochemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, USA.
| | - Sreeprasad T Sreenivasan
- Department of Chemistry and Biochemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, USA.
| | - Luis Echegoyen
- Department of Chemistry and Biochemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, USA.
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5
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Brotsman VA, Lukonina NS, Malkin NA, Rybalchenko AV, Belov NM, Goryunkov AA. Difluoromethylenation of fullerene C 70 provides isomeric diversity and availability of equatorial [5,6]-homofullerene C 70(CF 2). Phys Chem Chem Phys 2022; 24:16816-16826. [DOI: 10.1039/d2cp01922a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report synthesis, isolation, and spectroscopic characterization of the novel [5,6]-open C70(CF2) isomer III along with the already known [6,6]-closed and [6,6]-open C70(CF2) isomers I and II. The compounds were...
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6
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Robust fluorogenic non-porphyrin interaction of Zn(II) and Hg(II) naphthadiaza-crown macrocyclic complexes with C60: Spectroscopic and dispersion-corrected DFT study. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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7
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Regioisomeric α-[70]fullerene-fused lactones: Synthesis, characterization and solubility difference. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Castro E, Fernandez-Delgado O, Artigas A, Zavala G, Liu F, Moreno-Vicente A, Rodríguez-Fortea A, Velasquez JD, Poblet JM, Echegoyen L. α-DTC 70 Fullerene Performs Significantly Better than β-DTC 70 as Electron Transporting Material in Perovskite Solar Cells. JOURNAL OF MATERIALS CHEMISTRY. C 2020; 8:6813-6819. [PMID: 33777397 PMCID: PMC7990232 DOI: 10.1039/d0tc01382j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this work, two new C70 isomers, α and β bis(2-(thiophen-2-yl)ethyl)-C70-fullerene mono-adducts (DTC70), were synthesized, characterized and used as electron transporting materials (ETMs) in perovskite solar cells (PSCs). Our results show that the α isomer improves both the J sc and FF values of the devices, when compared to the results for the β-isomer and to those for phenyl-C70-butyric acid methyl ester (PC71BM), used as control. Devices based on α-DTC70 achieved a power conversion efficiency (PCE) of 15.9%, which is higher than that observed with PC71BM (15.1%).
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Affiliation(s)
- Edison Castro
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States
| | - Olivia Fernandez-Delgado
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States
| | - Albert Artigas
- Institut de Química Computacional i Catàlisi (IQCC), Department de Química, Universitat de Girona, 17003 Girona, Catalonia, Spain
| | - Gerardo Zavala
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States
| | - Fang Liu
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Antonio Moreno-Vicente
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo 1, 43007, Tarragona (Spain)
| | - Antonio Rodríguez-Fortea
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo 1, 43007, Tarragona (Spain)
| | - José D. Velasquez
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States
- Departamento de Química, Facultad de Ciencias Naturales y Exactas, Universidad del Valle, A.A. 25360 Cali, Colombia
| | - Josep M. Poblet
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo 1, 43007, Tarragona (Spain)
| | - Luis Echegoyen
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States
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9
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Fernandez-Delgado O, Castro E, Ganivet CR, Fosnacht K, Liu F, Mates T, Liu Y, Wu X, Echegoyen L. Variation of Interfacial Interactions in PC 61BM-like Electron-Transporting Compounds for Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2019; 11:34408-34415. [PMID: 31318519 DOI: 10.1021/acsami.9b09018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The synthesis, characterization, and incorporation of phenyl-C61-butyric acid methyl ester (PC61BM)-like derivatives as electron transporting materials (ETMs) in inverted perovskite solar cells (PSCs) are reported. These compounds have the same structure except for the ester substituent, which was varied from methyl to phenyl to thienyl and to pyridyl. The three latter derivatives performed better than PC61BM in PSCs, mainly attributed to the specific interactions of the fullerenes with the perovskite layer, as evidenced by X-ray photoelectron spectroscopy (XPS) and steady-state and time-resolved photoluminescence (SS- and TRPL) measurements. The experimental results were fully supported by density functional theory (DFT) calculations, which showed that the strongest interactions were exhibited by the compound possessing the pyridyl substituent.
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Affiliation(s)
- Olivia Fernandez-Delgado
- Department of Chemistry and Biochemistry , University of Texas at El Paso , 500 West University Avenue , El Paso , Texas 79968 , United States
| | - Edison Castro
- Department of Chemistry and Biochemistry , University of Texas at El Paso , 500 West University Avenue , El Paso , Texas 79968 , United States
- Department of Chemistry , University of Pittsburgh , Pittsburgh , Pennsylvania 15260 , United States
| | - Carolina R Ganivet
- Department of Chemistry and Biochemistry , University of Texas at El Paso , 500 West University Avenue , El Paso , Texas 79968 , United States
| | - Kaylin Fosnacht
- Department of Chemistry and Biochemistry , University of Texas at El Paso , 500 West University Avenue , El Paso , Texas 79968 , United States
- Department of Natural Sciences , Saint Martin's University , Lacey Washington 98503-7500 , United States
| | - Fang Liu
- Department of Chemistry , Columbia University , New York , New York , 10027 , United States
| | - Tom Mates
- Materials Department , University of California in Santa Barbara , California 93106-5050 , United States
| | - Ying Liu
- Hefei National Lab for Physical Sciences at the Microscale, School of Chemistry and Material Sciences, and CAS Key Laboratory of Materials for Energy Conversion , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Xiaojun Wu
- Hefei National Lab for Physical Sciences at the Microscale, School of Chemistry and Material Sciences, and CAS Key Laboratory of Materials for Energy Conversion , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Luis Echegoyen
- Department of Chemistry and Biochemistry , University of Texas at El Paso , 500 West University Avenue , El Paso , Texas 79968 , United States
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10
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Zhang Z, He R. Effect of heterocyclic spacer on property of hole-transporting materials with silafluorene core for perovskite solar cells. COMPUT THEOR CHEM 2019. [DOI: 10.1016/j.comptc.2019.06.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Tulyabaev AR, Khalilov LM. How regioisomeric fullerene C60 bis-cycloadducts can be distinguished with 13C NMR? Quantum-chemical assessment and empirical correction. COMPUT THEOR CHEM 2019. [DOI: 10.1016/j.comptc.2019.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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12
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Castro E, Artigas A, Pla-Quintana A, Roglans A, Liu F, Perez F, Lledó A, Zhu XY, Echegoyen L. Enhanced Open-Circuit Voltage in Perovskite Solar Cells with Open-Cage [60]Fullerene Derivatives as Electron-Transporting Materials. MATERIALS 2019; 12:ma12081314. [PMID: 31018500 PMCID: PMC6515431 DOI: 10.3390/ma12081314] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 04/15/2019] [Accepted: 04/18/2019] [Indexed: 11/16/2022]
Abstract
The synthesis, characterization, and incorporation of open-cage [60]fullerene derivatives as electron-transporting materials (ETMs) in perovskite solar cells (PSCs) with an inverted planar (p-i-n) structure is reported. Following optical and electrochemical characterization of the open-cage fullerenes 2a–c, p-i-n PSCs with a indium tin oxide (ITO)/poly(3,4-ethylenedioxythiophene)-polystyrene sulfonate (PEDOT:PSS)/perovskite/fullerene/Ag structure were prepared. The devices obtained from 2a–b exhibit competitive power conversion efficiencies (PCEs) and improved open-circuit voltage (Voc) values (>1.0 V) in comparison to a reference cell based on phenyl-C61-butyric-acid methyl-ester (PC61BM). These results are rationalized in terms of a) the higher passivation ability of the open-cage fullerenes with respect to the other fullerenes, and b) a good overlap between the highest occupied molecular orbital/lowest unoccupied molecular orbital (HOMO/LUMO) levels of 2a–b and the conduction band of the perovskite.
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Affiliation(s)
- Edison Castro
- Department of Chemistry, University of Texas at El Paso El Paso, TX 79968, USA.
| | - Albert Artigas
- Institut de Química Computacional i Catàlisi (IQCC), Department de Química, Universitat de Girona, 17003 Girona, Catalonia Spain.
| | - Anna Pla-Quintana
- Institut de Química Computacional i Catàlisi (IQCC), Department de Química, Universitat de Girona, 17003 Girona, Catalonia Spain.
| | - Anna Roglans
- Institut de Química Computacional i Catàlisi (IQCC), Department de Química, Universitat de Girona, 17003 Girona, Catalonia Spain.
| | - Fang Liu
- Department of Chemistry, Columbia University, New York, NY 10027, USA.
| | - Frank Perez
- Department of Chemistry, University of Texas at El Paso El Paso, TX 79968, USA.
| | - Agustí Lledó
- Institut de Química Computacional i Catàlisi (IQCC), Department de Química, Universitat de Girona, 17003 Girona, Catalonia Spain.
| | - X-Y Zhu
- Department of Chemistry, Columbia University, New York, NY 10027, USA.
| | - Luis Echegoyen
- Department of Chemistry, University of Texas at El Paso El Paso, TX 79968, USA.
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13
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Vidal S, Izquierdo M, Filippone S, Fernández I, Akin S, Seo JY, Zakeeruddin SM, Grätzel M, Martín N. Site-selective Synthesis of β-[70]PCBM-like Fullerenes: Efficient Application in Perovskite Solar Cells. Chemistry 2019; 25:3224-3228. [DOI: 10.1002/chem.201806053] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 01/09/2019] [Indexed: 01/30/2023]
Affiliation(s)
- Sara Vidal
- Department of Organic Chemistry; University Complutense; Avenida Complutense s/n 28040 Madrid Spain
| | - Marta Izquierdo
- Department of Organic Chemistry; University Complutense; Avenida Complutense s/n 28040 Madrid Spain
| | - Salvatore Filippone
- Department of Organic Chemistry; University Complutense; Avenida Complutense s/n 28040 Madrid Spain
| | - Israel Fernández
- Department of Organic Chemistry; University Complutense; Avenida Complutense s/n 28040 Madrid Spain
| | - Seckin Akin
- Laboratory of Photonics and Interfaces; Institute of Chemical Sciences and Engineering; École Polytechnique Fédérale de Lausanne (EPFL); Station 6 1015 Lausanne Switzerland
- Department of Metallurgical and Materials Engineering; Karamanoglu Mehmetbey University; 70100 Karaman Turkey
| | - Ji-Youn Seo
- Laboratory of Photonics and Interfaces; Institute of Chemical Sciences and Engineering; École Polytechnique Fédérale de Lausanne (EPFL); Station 6 1015 Lausanne Switzerland
| | - Shaik M. Zakeeruddin
- Laboratory of Photonics and Interfaces; Institute of Chemical Sciences and Engineering; École Polytechnique Fédérale de Lausanne (EPFL); Station 6 1015 Lausanne Switzerland
| | - Michael Grätzel
- Laboratory of Photonics and Interfaces; Institute of Chemical Sciences and Engineering; École Polytechnique Fédérale de Lausanne (EPFL); Station 6 1015 Lausanne Switzerland
| | - Nazario Martín
- Department of Organic Chemistry; University Complutense; Avenida Complutense s/n 28040 Madrid Spain
- IMDEA-Nanociencia; C/Faraday, 9; Campus de Cantoblanco 28049 Madrid Spain
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14
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Physical Insights into Molecular Sensors, Molecular Logic Gates, and Photosensitizers in Photodynamic Therapy. J CHEM-NY 2019. [DOI: 10.1155/2019/6793490] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
In this article, the importance of charge/electron transfer in two rapidly growing areas of science is highlighted. In the field of molecular sensors, it plays a considerable role on the detection of molecular systems to serve as fluorescence sensors, switches, and molecular logic gates (MLG) replacing the semiconductor electronics, while in the field of photodynamic therapy, it acts competitive. On these scientific fields, a lot of research has been conducted in the last decades to find out potential candidates. In the field of fluorescent sensors, switches, and molecular logic gates, the fluorescent photo-induced electron transfer switching principle is responsible for the quenching of fluorescence. The manipulation of the quenching can lead to the design of an ideal candidate for complicated molecular logic operation. In the field of photodynamic therapy (PDT), the intersystem crossings occurring between excited singlet and triplet states are the key for an ideal photosensitizer (PS) candidate. The triplets must present relatively long lifetimes, and they must lie near or above the energy which is needed for the excitation of molecular oxygen. It this case, charge/electron phenomena can act competitive, and they are not desirable. However, there are a few complexes which are good PSs of singlet oxygen despite the charge transfer (CT) nature of their lowest excited state.
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15
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Castro E, Fernandez-Delgado O, Arslan F, Zavala G, Yang T, Seetharaman S, Souza FD, Echegoyen L. New thiophene-based C 60 fullerene derivatives as efficient electron transporting materials for perovskite solar cells. NEW J CHEM 2018; 42:14551-14558. [PMID: 30906190 DOI: 10.1039/c8nj03067g] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of new C60 fullerene derivatives functionalized with thiophene moieties as well as with electron donating or electron withdrawing groups, bromine (Br) or cyano (CN), respectively, using Bingel reactions is reported. The synthesized derivatives were used as the electron transporting materials (ETMs) in inverted perovskite solar cells (PSCs). Compared to devices fabricated with [6,6]-phenyl-C61-butyric acid methyl ester (PC61BM), the new derivatives showed similar electrochemical properties and electron mobilities. However, PSCs based on the new derivatives synthesized in this work exhibited higher power conversion efficiencies (PCEs) than PC61BM based devices, which were ascribed to their better passivation ability, likely due to specific interactions between the fullerene addend and the perovskite layer surface. Devices based on the fullerene bearing the CN group exhibited an additionally improved efficiency due to the increased dielectric constant (ε r) of this derivative. These results show that the new functionalized fullerene derivatives can act as efficient ETMs in inverted PSCs.
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Affiliation(s)
- Edison Castro
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States
| | - Olivia Fernandez-Delgado
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States
| | - Funda Arslan
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States
| | - Gerardo Zavala
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States
| | - Tingyuan Yang
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States
| | - Sairaman Seetharaman
- Department of Chemistry, University of North Texas Denton, TX 76203-5017, United States
| | - Francis D' Souza
- Department of Chemistry, University of North Texas Denton, TX 76203-5017, United States
| | - Luis Echegoyen
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States
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16
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Peurifoy SR, Castro E, Liu F, Zhu XY, Ng F, Jockusch S, Steigerwald ML, Echegoyen L, Nuckolls C, Sisto TJ. Three-Dimensional Graphene Nanostructures. J Am Chem Soc 2018; 140:9341-9345. [DOI: 10.1021/jacs.8b04119] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Samuel R. Peurifoy
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Edison Castro
- Department of Chemistry, University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Fang Liu
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - X.-Y. Zhu
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Fay Ng
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Steffen Jockusch
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | | | - Luis Echegoyen
- Department of Chemistry, University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Colin Nuckolls
- Department of Chemistry, Columbia University, New York, New York 10027, United States
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Thomas J. Sisto
- Department of Chemistry, Columbia University, New York, New York 10027, United States
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17
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Wang S, Huang X, Sun H, Wu C. Hybrid UV-Ozone-Treated rGO-PEDOT:PSS as an Efficient Hole Transport Material in Inverted Planar Perovskite Solar Cells. NANOSCALE RESEARCH LETTERS 2017; 12:619. [PMID: 29236184 PMCID: PMC5729175 DOI: 10.1186/s11671-017-2393-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 11/30/2017] [Indexed: 05/30/2023]
Abstract
Inverted planar perovskite solar cells (PSCs), which are regarded as promising devices for new generation of photovoltaic systems, show many advantages, such as low-temperature film formation, low-cost fabrication, and smaller hysteresis compared with those of traditional n-i-p PSCs. As an important carrier transport layer in PSCs, the hole transport layer (HTL) considerably affects the device performance. Therefore, HTL modification becomes one of the most critical issues in improving the performance of PSCs. In this paper, we report an effective and environmentally friendly UV-ozone treatment method to enhance the hydrophilia of reduced graphene oxide (rGO) with its excellent electrical performance. The treated rGO was applied to doped poly(3,4-ethylenedioxythiophene) poly(styrene-sulfonate) (PEDOT:PSS) as HTL material of PSCs. Consequently, the performance of rGO/PEDOT:PSS-doped PSCs was improved significantly, with power conversion efficiency (PCE) of 10.7%, Jsc of 16.75 mA/cm2, Voc of 0.87 V, and FF of 75%. The PCE of this doped PSCs was 27% higher than that of the PSCs with pristine PEDOT:PSS as HTL. This performance was attributed to the excellent surface morphology and optimized hole mobility of the solution-processable rGO-modified PEDOT:PSS.
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Affiliation(s)
- Shuying Wang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054 China
- Chengdu NO.7 High School, Gaoxin Campus, Chengdu, 610041 China
| | - Xiaona Huang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054 China
- Chengdu Technology University, Chengdu, 611730 China
| | - Haoxuan Sun
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054 China
| | - Chunyang Wu
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054 China
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18
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Castro E, Sisto TJ, Romero EL, Liu F, Peurifoy SR, Wang J, Zhu X, Nuckolls C, Echegoyen L. Cove‐Edge Nanoribbon Materials for Efficient Inverted Halide Perovskite Solar Cells. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706895] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Edison Castro
- Department of Chemistry University of Texas at El Paso El Paso TX 79968 USA
| | - Thomas J. Sisto
- Department of Chemistry Columbia University New York NY 10027 USA
| | - Elkin L. Romero
- Department of Chemistry University of Texas at El Paso El Paso TX 79968 USA
| | - Fang Liu
- Department of Chemistry Columbia University New York NY 10027 USA
| | | | - Jue Wang
- Department of Chemistry Columbia University New York NY 10027 USA
| | - Xiaoyang Zhu
- Department of Chemistry Columbia University New York NY 10027 USA
| | - Colin Nuckolls
- Department of Chemistry Columbia University New York NY 10027 USA
| | - Luis Echegoyen
- Department of Chemistry University of Texas at El Paso El Paso TX 79968 USA
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19
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Castro E, Sisto TJ, Romero EL, Liu F, Peurifoy SR, Wang J, Zhu X, Nuckolls C, Echegoyen L. Cove‐Edge Nanoribbon Materials for Efficient Inverted Halide Perovskite Solar Cells. Angew Chem Int Ed Engl 2017; 56:14648-14652. [DOI: 10.1002/anie.201706895] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Edison Castro
- Department of Chemistry University of Texas at El Paso El Paso TX 79968 USA
| | - Thomas J. Sisto
- Department of Chemistry Columbia University New York NY 10027 USA
| | - Elkin L. Romero
- Department of Chemistry University of Texas at El Paso El Paso TX 79968 USA
| | - Fang Liu
- Department of Chemistry Columbia University New York NY 10027 USA
| | | | - Jue Wang
- Department of Chemistry Columbia University New York NY 10027 USA
| | - Xiaoyang Zhu
- Department of Chemistry Columbia University New York NY 10027 USA
| | - Colin Nuckolls
- Department of Chemistry Columbia University New York NY 10027 USA
| | - Luis Echegoyen
- Department of Chemistry University of Texas at El Paso El Paso TX 79968 USA
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