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The Synthesis of a ...
The Synthesis of a Multiple D-A Conjugated Macrocycle and Its Application in Organic Photovoltaic
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- Liu, Wei (author)
- Cent South Univ, Peoples R China
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- Zhang, Huotian (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
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- Liang, Songting (author)
- Cent South Univ, Peoples R China
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- Wang, Tong (author)
- Imperial Coll London, England; Imperial Coll London, England
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- He, Siqing (author)
- Cent South Univ, Peoples R China
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- Hu, Yunbin (author)
- Cent South Univ, Peoples R China
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- Zhang, Rui (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
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- Ning, Haoqing (author)
- Imperial Coll London, England; Imperial Coll London, England
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- Ren, Jie (author)
- Zhejiang Univ, Peoples R China
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- Bakulin, Artem (author)
- Imperial Coll London, England
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- Gao, Feng (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
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- Yuan, Jun (author)
- Cent South Univ, Peoples R China
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- Zou, Yingping (author)
- Cent South Univ, Peoples R China
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Angewandte Chemie International Edition. - : WILEY-V C H VERLAG GMBH. - 1433-7851 .- 1521-3773.
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- As a novel class of materials, D-A conjugated macrocycles hold significant promise for chemical science. However, their potential in photovoltaic remains largely untapped due to the complexity of introducing multiple donor and acceptor moieties into the design and synthesis of cyclic pi-conjugated molecules. Here, we report a multiple D-A ring-like conjugated molecule (RCM) via the coupling of dimer molecule DBTP-C3 as a template and thiophenes in high yields. RCM exhibits a narrow optical gap (1.33 eV) and excellent thermal stability, and shows a remarkable photoluminescence yield (phi PL) of 11.1 % in solution, much higher than non-cyclic analogues. Organic solar cell (OSC) constructed with RCM as electron acceptor shows efficient charge separation at donor-acceptor band offsets and achieves a power conversion efficiency (PCE) of 14.2 %-approximately fourfold higher than macrocycle-based OSCs reported so far. This is partly due to low non-radiative voltage loss down to 0.20 eV and a high electroluminescence yield (phi EL) of 4x10-4. Our findings emphasize the potential of D-A cyclic conjugated molecules in advancing organic photovoltaic technology. A multiple D-A ring-like conjugated molecule, RCM was synthesized via a template-directed process. RCM inherits the superior photovoltaic properties characteristic of D-A linear molecules, including a narrow optical gap and effective charge transfer. Importantly, RCM demonstrates reduced non-radiative losses, attributable to its minimized vibration.+image
Subject headings
- NATURVETENSKAP -- Kemi -- Organisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Organic Chemistry (hsv//eng)
Keyword
- Donor-Acceptor Molecules; Macrocycles; Organic Photovoltaics; Solar Cells
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Liu, Wei
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Zhang, Huotian
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Liang, Songting
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Wang, Tong
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He, Siqing
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Hu, Yunbin
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show more...
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Zhang, Rui
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Ning, Haoqing
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Ren, Jie
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Bakulin, Artem
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Gao, Feng
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Yuan, Jun
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Zou, Yingping
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Organic Chemistr ...
- Articles in the publication
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Angewandte Chemi ...
- By the university
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Linköping University