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Li Y, Ren J, Liu S, Zhao B, Liang Z, Jee MH, Qin H, Su W, Woo HY, Gao C. Tailoring the Molecular Planarity of Perylene Diimide-Based Third Component toward Efficient Ternary Organic Solar Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2401176. [PMID: 38529741 DOI: 10.1002/smll.202401176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 03/16/2024] [Indexed: 03/27/2024]
Abstract
Incorporating a third component into binary organic solar cells (b-OSCs) has provided a potential platform to boost power conversion efficiency (PCEs). However, gaining control over the non-equilibrium blend morphology via the molecular design of the perylene diimide (PDI)-based third component toward efficient ternary organic solar cells (t-OSCs) still remains challenging. Herein, two novel PDI derivatives are developed with tailored molecular planarity, namely ufBTz-2PDI and fBTz-2PDI, as the third component for t-OSCs. Notably, after performing a cyclization reaction, the twisted ufBTz-2PDI with an amorphous character transferred to the highly planar fBTz-2PDI followed by a semi-crystalline character. When incorporating the semi-crystalline fBTz-2PDI into the D18:L8-BO system, the resultant t-OSC achieved an impressive PCE of 18.56%, surpassing the 17.88% attained in b-OSCs. In comparison, the addition of amorphous ufBTz-2PDI into the binary system facilitates additional charge trap sites and results in a deteriorative PCE of 14.37%. Additionally, The third component fBTz-2PDI possesses a good generality in optimizing the PCEs of several b-OSCs systems are demonstrated. The results not only provided a novel A-DA'D-A motif for further designing efficient third component but also demonstrated the crucial role of modulated crystallinity of the PDI-based third component in optimizing PCEs of t-OSCs.
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Affiliation(s)
- Yuxiang Li
- School of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an, 710054, P. R. China
| | - Jiaqi Ren
- School of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an, 710054, P. R. China
| | - Shujuan Liu
- Xi'an Key Laboratory of Liquid Crystal and Organic Photovoltaic Materials State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, 710065, P. R. China
| | - Baofeng Zhao
- Xi'an Key Laboratory of Liquid Crystal and Organic Photovoltaic Materials State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, 710065, P. R. China
| | - Zezhou Liang
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi, Key Lab of Photonic Technique for Information School of Electronics Science & Engineering Faculty of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Min Hun Jee
- Department of Chemistry, Korea University, Seoul, 02841, Republic of Korea
| | - Hongmei Qin
- School of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an, 710054, P. R. China
| | - Wenyan Su
- School of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an, 710054, P. R. China
| | - Han Young Woo
- Department of Chemistry, Korea University, Seoul, 02841, Republic of Korea
| | - Chao Gao
- Xi'an Key Laboratory of Liquid Crystal and Organic Photovoltaic Materials State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, 710065, P. R. China
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Yadav S, Shivanna R, Mohapatra AA, Sawhney N, Gangadharappa C, Swaraj S, Rao A, Friend RH, Patil S. Resonant Energy Transfer-Mediated Efficient Hole Transfer in the Ternary Blend Organic Solar Cells. J Phys Chem Lett 2023; 14:6601-6609. [PMID: 37459166 DOI: 10.1021/acs.jpclett.3c01359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
The ternary blend approach accomplished improved spectral coverage and enhanced the power conversion efficiency (PCE) of organic solar cells (OSCs). However, the role of the third component in improving the photovoltaic parameters needs critical analysis. Here, we introduced a wide band gap n-type twisted perylene diimide (TPDI) into the PM6:Y6 blend as a third component that improves spectral coverage and morphology, resulting in an overall increase in the efficiency of the OSCs. TPDI acts as an antenna for efficient energy- and charge-transfer processes. A systematic study compared charge- and energy-transfer dynamics and the orientational dependence nanomorphology of ternary blends with those of their binary counterparts. Femtosecond transient absorption measurements reveal enhanced hole-transfer efficiency in finely tuned ternary mixtures. This study provides a rational approach to identifying a third component to improve light management and morphology. These parameters enhance the energy and charge-transfer processes, improving the PCE of OSCs.
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Affiliation(s)
- Suraj Yadav
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560012, India
| | - Ravichandran Shivanna
- Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge CB3 0HE, United Kingdom
| | | | - Nipun Sawhney
- Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge CB3 0HE, United Kingdom
| | | | - Sufal Swaraj
- Synchrotron SOLEIL, L'Orme des Merisiers, Départementale 128, Saint-Aubin 91190, France
| | - Akshay Rao
- Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge CB3 0HE, United Kingdom
| | - Richard H Friend
- Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge CB3 0HE, United Kingdom
| | - Satish Patil
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560012, India
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Socol M, Preda N, Breazu C, Petre G, Stanculescu A, Stavarache I, Popescu-Pelin G, Stochioiu A, Socol G, Iftimie S, Thanner C, Rasoga O. Effects of Solvent Additive and Micro-Patterned Substrate on the Properties of Thin Films Based on P3HT:PC70BM Blends Deposited by MAPLE. MATERIALS (BASEL, SWITZERLAND) 2022; 16:144. [PMID: 36614483 PMCID: PMC9821753 DOI: 10.3390/ma16010144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
Lately, there is a growing interest in organic photovoltaic (OPV) cells due to the organic materials' properties and compatibility with various types of substrates. However, their efficiencies are low relative to the silicon ones; therefore, other ways (i.e., electrode micron/nanostructuring, synthesis of new organic materials, use of additives) to improve their performances are still being sought. In this context, we studied the behavior of the common organic bulk heterojunction (P3HT:PC70BM) deposited by matrix-assisted pulsed laser evaporation (MAPLE) with/without 0.3% of 1,8-diiodooctane (DIO) additive on flat and micro-patterned ITO substrates. The obtained results showed that in the MAPLE process, a small quantity of additive can modify the morphology of the organic films and decrease their roughness. Besides the use of the additive, the micro-patterning of the electrode leads to a greater increase in the absorption of the studied photovoltaic structures. The inferred values of the filling factors for the measured cells in ambient conditions range from 19% for the photovoltaic structures with no additive and without substrate patterning to 27% for the counterpart structures with patterning and a small quantity of additive.
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Affiliation(s)
- Marcela Socol
- National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania
| | - Nicoleta Preda
- National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania
| | - Carmen Breazu
- National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania
| | - Gabriela Petre
- National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania
- Faculty of Physics, University of Bucharest, 405 Atomistilor Street, 077125 Magurele, Romania
| | - Anca Stanculescu
- National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania
| | - Ionel Stavarache
- National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania
| | - Gianina Popescu-Pelin
- National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania
| | - Andrei Stochioiu
- Faculty of Physics, University of Bucharest, 405 Atomistilor Street, 077125 Magurele, Romania
- National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania
| | - Gabriel Socol
- National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania
| | - Sorina Iftimie
- Faculty of Physics, University of Bucharest, 405 Atomistilor Street, 077125 Magurele, Romania
| | - Christine Thanner
- EVGroup, DI Erich Thallner Strasse 1, 4782 St. Florian am Inn, Austria
| | - Oana Rasoga
- National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania
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Liu W, Lu H, Zhang Y, Huang H, Zheng X, Liu Y, Wu Y, Xu X. Enhancing the performance of organic solar cells by modification of cathode with a self-assembled monolayer of aromatic organophosphonic acid. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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