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Hung CM, Lin JT, Yang YH, Liu YC, Gu MW, Chou TC, Wang SF, Chen ZQ, Wu CC, Chen LC, Hsu CC, Chen CH, Chiu CW, Chen HC, Chou PT. Modulation of Perovskite Grain Boundaries by Electron Donor-Acceptor Zwitterions R, R-Diphenylamino-phenyl-pyridinium-(CH 2) n -sulfonates: All-Round Improvement on the Solar Cell Performance. JACS AU 2022; 2:1189-1199. [PMID: 35647592 PMCID: PMC9131477 DOI: 10.1021/jacsau.2c00160] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/03/2022] [Accepted: 04/05/2022] [Indexed: 05/29/2023]
Abstract
Inverted perovskite solar cells (PSCs) have attracted intense attention because of their insignificant hysteresis and low-temperature fabrication process. However, the efficiencies of inverted PSCs are still inferior to those of commercialized silicon solar cells. Also, the poor stability of PSCs is one of the major impedances to commercialization. Herein, we rationally designed and synthesized a new series of electron donor (R,R-diphenylamino) and acceptor (pyridimium-(CH2) n -sulfonates) zwitterions as a boundary modulator and systematically investigated their associated interface properties. Comprehensive physical and optoelectronic studies verify that these zwitterions provide a four-in-one functionality: balancing charge carrier transport, suppressing less-coordinated Pb2+ defects, enhancing moisture resistance, and reducing ion migration. Although each functionality may have been reported by specific passivating molecules, a strategy that simultaneously regulates the charge-transfer balance and three other functionalities has not yet been developed. The results are to make an omnidirectional improvement of PSCs. Among all zwitterions, 4-(4-(4-(di-(4-methoxylphenyl)amino)phenyl)propane-1-ium-1-yl)butane-1-sulfonate (OMeZC3) optimizes the balance hole/electron mobility ratio of perovskite to 0.91, and the corresponding PSCs demonstrate a high power conversion efficiency (PCE) of up to 23.15% free from hysteresis, standing out as one of the champion PSCs with an inverted structure. Importantly, the OMeZC3-modified PSC exhibits excellent long-term stability, maintaining almost its initial PCE after being stored at 80% relative humidity for 35 days.
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Affiliation(s)
- Chieh-Ming Hung
- Department
of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Jin-Tai Lin
- Department
of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Yu-Hsuan Yang
- Department
of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Yi-Chun Liu
- Department
of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Mong-Wen Gu
- Department
of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Tai-Che Chou
- Department
of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Sheng-Fu Wang
- Department
of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Zi-Qin Chen
- Department
of Fiber and Composite Materials, Feng Chia
University, Taichung 40724, Taiwan
| | - Chi-Chi Wu
- Department
of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Li-Cyun Chen
- Department
of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Cheng-Chih Hsu
- Department
of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Chun-Hsien Chen
- Department
of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Ching-Wen Chiu
- Department
of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Hsieh-Chih Chen
- Department
of Fiber and Composite Materials, Feng Chia
University, Taichung 40724, Taiwan
| | - Pi-Tai Chou
- Department
of Chemistry, National Taiwan University, Taipei 10617, Taiwan
- Center
for Emerging Materials and Advanced Devices, National Taiwan University, Taipei 10617, Taiwan
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Desoky MMH, Bonomo M, Barbero N, Viscardi G, Barolo C, Quagliotto P. Polymeric Dopant-Free Hole Transporting Materials for Perovskite Solar Cells: Structures and Concepts towards Better Performances. Polymers (Basel) 2021; 13:1652. [PMID: 34069612 PMCID: PMC8160825 DOI: 10.3390/polym13101652] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/07/2021] [Accepted: 05/12/2021] [Indexed: 11/16/2022] Open
Abstract
Perovskite solar cells are a hot topic of photovoltaic research, reaching, in few years, an impressive efficiency (25.5%), but their long-term stability still needs to be addressed for industrial production. One of the most sizeable reasons for instability is the doping of the Hole Transporting Material (HTM), being the salt commonly employed as a vector bringing moisture in contact with perovskite film and destroying it. With this respect, the research focused on new and stable "dopant-free" HTMs, which are inherently conductive, being able to effectively work without any addition of dopants. Notwithstanding, they show impressive efficiency and stability results. The dopant-free polymers, often made of alternated donor and acceptor cores, have properties, namely the filming ability, the molecular weight tunability, the stacking and packing peculiarities, and high hole mobility in absence of any dopant, that make them very attractive and a real innovation in the field. In this review, we tried our best to collect all the dopant-free polymeric HTMs known so far in the perovskite solar cells field, providing a brief historical introduction, followed by the classification and analysis of the polymeric structures, based on their building blocks, trying to find structure-activity relationships whenever possible. The research is still increasing and a very simple polymer (PFDT-2F-COOH) approaches PCE = 22% while some more complex ones overcome 22%, up to 22.41% (PPY2).
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Affiliation(s)
- Mohamed M. H. Desoky
- Department of Chemistry and NIS Interdepartmental Center and INSTM Reference Centre, University of Torino, Via Pietro Giuria 7, 10125 Torino, Italy; (M.M.H.D.); (M.B.); (N.B.); (G.V.); (C.B.)
| | - Matteo Bonomo
- Department of Chemistry and NIS Interdepartmental Center and INSTM Reference Centre, University of Torino, Via Pietro Giuria 7, 10125 Torino, Italy; (M.M.H.D.); (M.B.); (N.B.); (G.V.); (C.B.)
| | - Nadia Barbero
- Department of Chemistry and NIS Interdepartmental Center and INSTM Reference Centre, University of Torino, Via Pietro Giuria 7, 10125 Torino, Italy; (M.M.H.D.); (M.B.); (N.B.); (G.V.); (C.B.)
| | - Guido Viscardi
- Department of Chemistry and NIS Interdepartmental Center and INSTM Reference Centre, University of Torino, Via Pietro Giuria 7, 10125 Torino, Italy; (M.M.H.D.); (M.B.); (N.B.); (G.V.); (C.B.)
| | - Claudia Barolo
- Department of Chemistry and NIS Interdepartmental Center and INSTM Reference Centre, University of Torino, Via Pietro Giuria 7, 10125 Torino, Italy; (M.M.H.D.); (M.B.); (N.B.); (G.V.); (C.B.)
- ICxT Interdepartmental Centre, Università degli Studi di Torino, Via Lungo Dora Siena 100, 10153 Torino, Italy
| | - Pierluigi Quagliotto
- Department of Chemistry and NIS Interdepartmental Center and INSTM Reference Centre, University of Torino, Via Pietro Giuria 7, 10125 Torino, Italy; (M.M.H.D.); (M.B.); (N.B.); (G.V.); (C.B.)
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