Understanding photochemical degradation mechanisms in photoactive layer materials for organic solar cells

Chemical Society Reviews, Год журнала: 2024, Номер 53(14), С. 7426 - 7454

Опубликована: Янв. 1, 2024

Over the past decades, field of organic solar cells (OSCs) has witnessed a significant evolution in materials chemistry, which resulted remarkable enhancement device performance, achieving efficiencies over 19%. The photoactive layer OSCs play crucial role light absorption, charge generation, transport and stability. To facilitate scale-up OSCs, it is imperative to address photostability these electron acceptor donor materials, as their photochemical degradation process remains challenge during photo-to-electric conversion. In this review, we present an overview development emphasizing aspects chemical stability behavior that are linked OSCs. Throughout each section, highlight pathways for link degradation. We also discuss existing interdisciplinary challenges obstacles impede photostable materials. Finally, offer insights into strategies aimed at enhancing future directions developing photo-active layers, facilitating commercialization

Язык: Английский

---

A quinoxaline–benzothiadiazole heterotrimer for organic solar cells with extraordinary efficiency and stability

Energy & Environmental Science, Год журнала: 2024, Номер 17(10), С. 3641 - 3650

Опубликована: Янв. 1, 2024

A new hybrid strategy synthesizes the TQT acceptor with thiadiazole and quinoxaline units. The resulting TQT-based OSC achieved 18.52% efficiency, topping linear trimer acceptor-based OSCs, while also exhibiting robust stability.

Язык: Английский

---

Efficient and Photostable Organic Solar Cells Achieved by Alloyed Dimer Acceptors with Tailored Linker Structures

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Июнь 27, 2024

Abstract High power conversion efficiency (PCE) and long‐term stability are prerequisites for commercialization of organic solar cells (OSCs). Herein, two dimer acceptors (DYTVT DYTCVT) developed with different properties through linker engineering, study their effects as alloy‐like on the photovoltaic performance photostability OSCs. These ternary OSCs effectively combine advantages both acceptors. DYTVT, characterized by its high backbone planarity, ensures elevated electron mobility glass‐transition temperature ( T g ), leading to efficient charge transport enhanced Conversely, DYTCVT, significant dipole moment electrostatic potential, enhances compatibility alloy donors refines blend morphology, facilitating generation in Consequently, D18:DYTVT:DYTCVT exhibit higher PCE (18.4%) compared D18:MYT (monomer acceptor, = 16.5%), D18:DYTVT (PCE 17.4%), D18:DYTCVT 17.0%) Furthermore, owing (133 °C) than MYT 80 DYTCVT 120 °C), have significantly t 80% lifetime 4250 h under 1‐sun illumination) 40 h) 2910 h).

Язык: Английский

---

A case study of comparing two dimerized acceptor molecules built by different branch-connected and terminal-connected approaches

Science China Chemistry, Год журнала: 2024, Номер 67(5), С. 1687 - 1696

Опубликована: Март 29, 2024

Язык: Английский

---

Efficient and Stable All-Small-Molecule Solar Cells Enabled by Incorporating a Designed Giant Molecule Acceptor

Energy & Environmental Science, Год журнала: 2024, Номер 17(16), С. 5962 - 5971

Опубликована: Янв. 1, 2024

A highly efficient and stable all-small-molecule system with excellent thickness tolerance recycling capability has been developed, by integrating a new giant molecule acceptor (Se-Giant) into the MPhS-C2:BTP-eC9 binary system.

Язык: Английский

---