Novel Low-Bandgap Organic Dyads Derived from Diketopyrrolopyrrole for Efficient Single-Component Organic Solar Cells

IF 6 3区工程技术 Q2 ENERGY & FUELS

Solar RRL Pub Date : 2024-12-20 DOI:10.1002/solr.202400749

Bommaramoni Yadagiri, Kamatham Narayanaswamy, Vinay Kumar, Hemalatha Maricherla, Mahesh Kumar Ravva, Surya Prakash Singh, Ganesh D. Sharma

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Abstract

In order to attain high performance in single-component organic solar cells (SCOSCs), it requires the designing of light-harvesting structures that can absorb light across a wide range from visible to near-infrared (NIR) wavelengths. In this investigation, two novel dyad materials, denoted as SPS-BF-Full and SPS-BT-Full are designed and synthesized, consisting of covalently linked benzofuran (BF) and benzothiophene (BT) functionalized thiophene–diketopyrrolopyrrole (TDPP) as donor and N-methyl fullero[60]pyrrolidine as the acceptor, respectively. The incorporation of a phenyl bridge between TDPP and fullero[60]pyrrolidine enhances light absorption in SPS-BF-Full and SPS-BT-Full, resulting to a high short-circuit density (J_SC). Consequently, the SCOSCs utilizing SPS-BT-Full and SPS-BF-Full attained overall power conversion efficiency (PCE) of 6.28 and 7.35%, respectively. The high photovoltaic performance of OSCs utilizing SPS-BF-Full is mainly attributed to its higher external quantum efficiency and balanced hole and electron mobility (μ_e/μ_h = 1.39), along with imporved charge carrier extraction, revealing more effective charge transport in comparison to SPS-BT-Full counterparts.

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用于高效单组分有机太阳能电池的新型低带隙双酮吡咯有机聚合物

为了在单组分有机太阳能电池（scosc）中获得高性能，需要设计能够吸收从可见光到近红外（NIR）波长范围内的光的光收集结构。本文设计并合成了以共价连接苯并呋喃（BF）和苯并噻吩（BT）功能化噻吩-二酮吡咯（TDPP）为给体和以n -甲基fullero[60]吡咯啉为受体的新型双偶材料SPS-BF-Full和SPS-BT-Full。在TDPP和fullero[60]吡咯烷之间加入苯基桥，增强了SPS-BF-Full和SPS-BT-Full的光吸收，导致高短路密度（JSC）。因此，利用SPS-BT-Full和SPS-BF-Full的scosc的总功率转换效率（PCE）分别为6.28%和7.35%。利用SPS-BF-Full的OSCs具有较高的外量子效率和平衡的空穴和电子迁移率（μe/μh = 1.39），以及改进的载流子提取，与SPS-BT-Full相比，显示出更有效的电荷输运。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Solar RRL Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

12.10

自引率

6.30%

发文量

460

期刊介绍： Solar RRL, formerly known as Rapid Research Letters, has evolved to embrace a broader and more encompassing format. We publish Research Articles and Reviews covering all facets of solar energy conversion. This includes, but is not limited to, photovoltaics and solar cells (both established and emerging systems), as well as the development, characterization, and optimization of materials and devices. Additionally, we cover topics such as photovoltaic modules and systems, their installation and deployment, photocatalysis, solar fuels, photothermal and photoelectrochemical solar energy conversion, energy distribution, grid issues, and other relevant aspects. Join us in exploring the latest advancements in solar energy conversion research.