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Rajagopalan R, Shankar S S, Balasubramaniyan N, Sharma GD. Simple and Efficient Acceptor-Donor-Acceptor-Type Non-fullerene Acceptors for a BODIPY-Thiophene-Backboned Polymer Donor for High-Performance Indoor Photovoltaics. ACS APPLIED MATERIALS & INTERFACES 2023; 15:13405-13414. [PMID: 36857615 DOI: 10.1021/acsami.2c23048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Herein, simple acceptor-donor-acceptor (A-D-A)-type small molecules denoted as DICTF and DRCTF with modification in terminal units were synthesized and used as electron acceptors. With the tuning of the electron-withdrawing units in electron acceptors, their photovoltaic properties were investigated when combined with low-band-gap BODIPY-thiophene-backboned donor material, named P(BdP-HT). The P(BdP-HT):DICTF-based organic solar cells (OSCs) displayed excellent efficiency of around 11.94%, which is superior to the P(BdP-HT):DRCTF counterpart (8.78%). Although the open-circuit voltage (VOC) of the P(BdP-HT):DRCTF-based OSC is greater than that for the P(BdP-HT):DICTF counterpart, the rise in the short-circuit current density (JSC) may be attributed to the fact that the P(BdP-HT):DICTF blend displayed impressive panchromatic absorption compared to P(BdP-HT):DRCTF. The improved fill factor (FF) is responsible for the balanced transport of charges in the P(BdP-HT):DICTF-based device. Moreover, the P(BdP-HT):DRCTF- and P(BdP-HT):DICTF-based OSCs showed 17.68 and 21.84%, respectively, under indoor illumination (1000 lx). To the best of our observation, this might be the first report on BODIPY-based donors with power conversion efficiency (PCE) of 21.84% under indoor illumination conditions.
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Affiliation(s)
- Raman Rajagopalan
- Advanced Organic Chemistry Laboratory, Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
| | - Shyam Shankar S
- Department of Physics, The LNM Institute of Information Technology, Jamdoli, Jaipur, Rajasthan 302031, India
| | - Natarajan Balasubramaniyan
- Advanced Organic Chemistry Laboratory, Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
| | - Ganesh D Sharma
- Department of Physics, The LNM Institute of Information Technology, Jamdoli, Jaipur, Rajasthan 302031, India
- Department of Electronic and Communication Engineering, The LNM Institute of Information Technology, Jamdoli, Jaipur, Rajasthan 302031, India
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Tseng YC, Kato A, Chang JF, Chen WC, Higashihara T, Chueh CC. Impact of the segment ratio on a donor-acceptor all-conjugated block copolymer in single-component organic solar cells. NANOSCALE 2022; 14:5472-5481. [PMID: 35322845 DOI: 10.1039/d2nr00437b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The development of single-component organic solar cells (SCOSCs) using only one photoactive component with a chemically bonded D/A structure has attracted increasing research attention in recent years. At represent, most relevant studies focus on comparing the performance difference between a donor-acceptor (D-A) conjugated block copolymer (CBC) and the commensurate blending systems based on the same donor and acceptor segments, and still there are no reports on the impact of the segment ratio for a certain D-A CBC on the resultant photovoltaic performance. In this study, we synthesized a D-A all-conjugated polymers based on an n-type PNDI2T block and a p-type PBDB-T donor block but with three different segment ratios (P1-P3) and demonstrate the significance of the D/A segment ratio on photovoltaic performance. Our results reveal that the n-type PNDI2T block plays a more critical role in the inter/intra-chain charge transfer. P1 with a higher content of PNDI2T delivers superior exciton dissociation and charge transfer behavior than P2 and P3, benefitting from its more balanced hole/electron mobility. In addition, a higher packing regularity associated with a more dominant face-on orientation is also observed for P1. As a result, SCOSC based on P1 exhibits the highest PCE among the synthesized CBCs. It also possesses a minimal energy loss due to the better suppressed non-radiative recombination loss. This work provides the first discussion of the impact of the segment ratio for a D-A all-conjugated block copolymer and signifies the critical role of the n-type segment in designing high-performance single-component CBCs.
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Affiliation(s)
- Yu-Cheng Tseng
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Aoto Kato
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan.
| | - Jia-Fu Chang
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Wen-Chang Chen
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
- Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei 10617, Taiwan.
| | - Tomoya Higashihara
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan.
| | - Chu-Chen Chueh
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
- Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei 10617, Taiwan.
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Morisue M, Ohno N, Saito G, Kawanishi M. Trimethylsilanolate-Promoted Activation of Alkynyl Trimethylsilanes: Hiyama-Type Sonogashira Cross-Coupling for the Synthesis of Arylene–Ethynylene-Linked Porphyrin Arrays. J Org Chem 2022; 87:3123-3134. [DOI: 10.1021/acs.joc.1c02879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mitsuhiko Morisue
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Nanase Ohno
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Genki Saito
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Miho Kawanishi
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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Marineau-Plante G, Qassab M, Schlachter A, Nos M, Durandetti M, Hardouin J, Lemouchi C, Le Pluart L, Harvey PD. Photoreductive Electron Transfers in Nanoarchitectonics Organization Between a Diketopyrrolopyroleplatinum(II)-Containing Organometallic Polymer and Various Electron Acceptors. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-021-02170-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Cuesta V, Singhal R, de la Cruz P, Sharma GD, Langa F. Reducing Energy Loss in Organic Solar Cells by Changing the Central Metal in Metalloporphyrins. CHEMSUSCHEM 2021; 14:3494-3501. [PMID: 33274829 DOI: 10.1002/cssc.202002664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/03/2020] [Indexed: 06/12/2023]
Abstract
The effect of central donor core on the properties of A-π-D-π-A donors, where D is a porphyrin macrocycle, cyclopenta[2,1-b:3,4-b']dithiophene is the π bridge, and A is a dicyanorhodanine terminal unit, was investigated for the fabrication of the organic solar cells (OSCs), along [6,6]-phenyl-C71-butyric acid methyl ester (PC71 BM) as electron acceptor. A new molecule consisting of Ni-porphyrin central donor core (VC9) showed deep HOMO energy level and OSCs based on optimized VC9:PC71 BM realized overall power conversion efficiency (PCE) of 10.66 % [short-circuit current density (JSC )=15.48 mA/cm2 , fill factor (FF)=0.65] with high open circuit voltage (VOC ) of 1.06 V and very low energy loss of 0.49 eV, whereas the Zn-porphyrin analogue VC8:PC71 BM showed PCE of 9.69 % with VOC of 0.89 V, JSC of 16.25 mA/cm2 and FF of 0.67. Although the OSCs based on VC8 showed higher JSC in comparison to VC9, originating from the broader absorption profile of VC8 that led to more exciton generation, the higher value of PCE of VC9 is owing to the higher VOC and reduced energy loss.
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Affiliation(s)
- Virginia Cuesta
- Department of inorganic, organic and biochemistry, Universidad de Castilla - La Mancha, Institute of Nanoscience, Nanotechnology and Molecular Materials (INAMOL), Campus de la Fábrica de Armas, Toledo, Spain
| | - Rahul Singhal
- Department of Physics, Malviya National Institute of Technology, JLN Marg, Jaipur (Raj.), 302017, India
| | - Pilar de la Cruz
- Department of inorganic, organic and biochemistry, Universidad de Castilla - La Mancha, Institute of Nanoscience, Nanotechnology and Molecular Materials (INAMOL), Campus de la Fábrica de Armas, Toledo, Spain
| | - Ganesh D Sharma
- Department of Physics, The LNM Institute of Information Technology, Deemed University, Rupa ki Nangal, Jamdoli, Jaipur (Raj.), 302031, India
| | - Fernando Langa
- Department of inorganic, organic and biochemistry, Universidad de Castilla - La Mancha, Institute of Nanoscience, Nanotechnology and Molecular Materials (INAMOL), Campus de la Fábrica de Armas, Toledo, Spain
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Harvey PD, Sharma GD, Witulski B. Indolo- and Diindolocarbazoles in Organic Photovoltaic Cells. CHEM LETT 2021. [DOI: 10.1246/cl.210050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Pierre D. Harvey
- Departement de chimie, Universite de Sherbrooke, Sherbrooke, PQ, Canada J1K 2R1
| | - Ganesh D. Sharma
- Department of Physics, LNM Institute of Information Technology, Jamdoli 302017 Jaipur, India
| | - Bernhard Witulski
- Laboratoire de Chimie Moleculaire et Thio-organique, CNRS UMR 6507, ENSICAEN & UNICaen, Universite de Normandie, 6 Bvd Marechal Juin, 14050 Caen, France
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Pradhan R, Malhotra P, Gupta G, Singhal R, Sharma GD, Mishra A. Efficient Fullerene-Free Organic Solar Cells Using a Coumarin-Based Wide-Band-Gap Donor Material. ACS APPLIED MATERIALS & INTERFACES 2020; 12:41869-41876. [PMID: 32799443 DOI: 10.1021/acsami.0c12147] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In recent years, tremendous growth has been seen for solution-processed bulk heterojunction solar cells (BHJSCs) using fullerene-free molecular acceptors. Herein, we report the synthesis, characterization of a coumarin-based organic semiconducting molecule C1, and its use in BHJSCs as an electron donor. The compound exhibited an absorption band at 472 nm in chloroform solution with an optical energy gap of 2.33 eV. The HOMO/LUMO energy levels of C1 were found to be ideal for use in BHJSCs. Using PC71BM and a fullerene-free acceptor IT-4F, the device generated power conversion efficiencies (PCEs) of 6.17 and 8.31%, respectively. The success of the device based on a fullerene-free acceptor is a result of complementary absorption and well-matched energy levels, resulting in an improved photocurrent and photovoltage in the device. Moreover, ternary solar cells fabricated by employing C1 (20 wt%) as a secondary donor, i.e., an active layer of C1:PM6:IT-4F (0.2:0.8:1.5), generated an enhanced PCE of 11.56% with a high short-circuit current density (JSC) of 16.42 mA cm-2, an open-circuit voltage (VOC) of 1.02 V, and a fill factor of 0.69 under 1 sun spectral illumination, which is ∼8% higher than that for the PM6:IT-4F-based binary device (PCE = 10.70%). The increased PCE for the ternary organic solar cell may be related to the efficient exciton generation and its dissociation via Forster resonance energy transfer, which guarantees enough time for an exciton to diffuse toward the D/A interfaces.
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Affiliation(s)
- Rashmirekha Pradhan
- School of Chemistry, Sambalpur University, Jyoti Vihar, Sambalpur 768019, India
| | - Prateek Malhotra
- Department of Physics, The LNM Institute of Information Technology (Deemed University), Rupa ki Nagal, Jamdoli, Jaipur, Rajasthan 302031, India
| | - Gaurav Gupta
- Department of Physics, The LNM Institute of Information Technology (Deemed University), Rupa ki Nagal, Jamdoli, Jaipur, Rajasthan 302031, India
| | - Rahul Singhal
- Department of Physics, Malaviya National Institute of Technology, Jaipur, Rajasthan 302017, India
| | - Ganesh D Sharma
- Department of Physics, The LNM Institute of Information Technology (Deemed University), Rupa ki Nagal, Jamdoli, Jaipur, Rajasthan 302031, India
| | - Amaresh Mishra
- School of Chemistry, Sambalpur University, Jyoti Vihar, Sambalpur 768019, India
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