Journal of Materials Chemistry C, Год журнала: 2024, Номер 12(27), С. 9968 - 9977
Опубликована: Янв. 1, 2024
The integration of self-powered detectors and selective gas sensors into a single system introduces next-generation optoelectronic that overcome the limitations power consumption poor selectivity.
Язык: Английский
Advanced Energy Materials, Год журнала: 2024, Номер 14(27)
Опубликована: Июнь 23, 2024
Abstract An organic bulk heterojunction based on a blend of conjugated polymer PBDB‐T‐2F (PM6) and non‐fullerene acceptor BTP‐4F (Y6) has come forward in recent years as an archetypical system for the study operating principles photovoltaic devices. One experimental techniques that shown immense value this is impedance spectroscopy (IS). In spite its relative simplicity, method derivatives offer possibility diverse, all‐round characterization materials devices interest. This Perspective summarizes research demonstrating application IS powerful to obtain multifaceted information PM6:Y6 presents current understanding results. A description general approaches employed processing data, including Nyquist plots, capacitance spectra, energy‐resolved electrochemical supplemented by additional analysis, notably non‐geminate recombination free charge carriers their transport groundbreaking blend. Finally, work outlines perspectives limitations future promising
Язык: Английский
Процитировано
9
Advanced Materials, Год журнала: 2024, Номер 36(35)
Опубликована: Июнь 14, 2024
Current high-efficiency organic solar cells (OSCs) are generally fabricated in an inert atmosphere that limits their real-world scalable manufacturing, while the efficiencies of air-processed OSCs lag far behind. The impacts ambient factors on cell fabrication remain unclear. In this work, effects systematically investigated, and it is unveiled oxidation doping light absorbers dominant reasons causing degradation when air. To address issue, a new strategy for fabricating high-performance by introducing antioxidant additive (4-bromophenylhydrazine, BPH) into precursor solutions, developed. BPH can effectively inhibit oxygen infiltration from to photoactive layer suppress trap formation caused oxidation. Compared with conventional OSCs, remarkably increases power conversion efficiency (PCE) 16.7% 19.3% (independently certified as 19.2%), representing top value OSCs. Furthermore, significantly improves operational stability air two times T80 lifetime over 500 h. This study highlights potential using additives fabricate stable air, promoting industrialization
Язык: Английский
Процитировано
7
Energy & Fuels, Год журнала: 2024, Номер 38(14), С. 13304 - 13314
Опубликована: Июль 4, 2024
The degradation of organic solar cells (OSCs) can occur in any the layers, underlining importance each layer prolonging their lifetime. To enhance performance and stability inverted OSCs (i-OSCs), interfacial modification has been employed. In this context, two self-assembled monolayers (SAMs), namely, octadecanthiol (ODT) octadecyltrimethoxysilane (OTMS), were utilized to effectively passivate typical surface defects ZnO electron transport (ETL). SAM-treated films found be more hydrophobic, which reduced produced by adsorbed oxygen hydroxyl groups. Consequently, power conversion efficiency (PCE) i-OSCs comprising an indacenodithieno[3,2-b]thiophene-alt-5,5-di(thiophen-2-yl)-2,2-bithiazole (PIDTT-DTBTz) donor blended with [6,6]-phenyl-C71-butyric acid methyl ester (PC70BM) acceptor increased from 4.20% pristine ZnO- 5.01 5.37% ODT- OTMS-treated ZnO-based devices, respectively. addition, photostability device substantially improved. Hence, devices based on treated ODT OTMS kept 76 89% initial PCE, respectively, while retained only 66% PCE after 48 h irradiation. improved extended lifetime attributed enhanced charge transfer, reduction both bimolecular trap-assisted recombination processes, interface between ETL active layer. Moreover, it observed that ETL-based i-OSC offers better efficient compared ODT-treated devices. This favorable dipole moment generated electrostatic potential at anchor group, promotes performance.
Язык: Английский
Процитировано
5
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Дек. 6, 2024
Abstract In organic solar cells (OSCs), electron transport layer (ETL) materials are typically designed with highly polar groups to lower the work function (WF) of cathode and ensure solvent orthogonality. However, increased surface energy associated these results in significant hygroscopicity poor interfacial contact active layer, posing a challenge for interlayer engineering that must balance device efficiency stability. Herein, two novel arylene diimides (PDI‐P NDI‐P) developed side chains end‐capped piperazine groups, as opposed commonly used amine groups. As ETLs, not only exhibit excellent conductivity but also effectively WF silver cathode. Compared amine‐functionalized perylene diimide (PDI‐N), piperazine‐functionalized (PDI‐P) exhibits reduced hygroscopicity, resulting improved wettability decreased moisture sensitivity. These characteristics contribute enhanced The PDI‐P ETL is compatible various high‐performance acceptor materials, achieving high efficiencies across wide thickness range ≈7 30 nm, maximum 19.8%. findings highlight great potential an high‐efficiency stable OSCs.
Язык: Английский
Процитировано
4
Advanced Energy Materials, Год журнала: 2025, Номер unknown
Опубликована: Апрель 24, 2025
Abstract The reliability of performance metrics in organic photodiodes (OPDs) is a fundamental factor for their efficacy real‐time applications. Among these metrics, the dark current density stands out its direct impact on sensitivity detectors. In this study, an anomalous illumination‐sensitive variation observed fabricated near‐infrared OPDs, which undermines device reliability. systematic investigation reveals that behavior stems from photocatalytic nature zinc oxide (ZnO), electron transport layer used OPD. ZnO detrimentally affects stability active material, particularly nonfullerene acceptor employed study. Through robust interface engineering approach, involves modifying between and layer, anomalies are successfully mitigated, enhancing consistency OPDs. addition to reducing current, strategy improves overall operational especially under ultraviolet exposure.
Язык: Английский
Процитировано
0
Surfaces and Interfaces, Год журнала: 2025, Номер unknown, С. 106557 - 106557
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
0
ACS Applied Electronic Materials, Год журнала: 2025, Номер unknown
Опубликована: Май 28, 2025
Процитировано
0
ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown
Опубликована: Май 29, 2025
Inverted organic solar cells (OSCs) offer superior operational stability for practical applications, yet their power conversion efficiencies (PCE) lag behind those of conventional devices. This shortfall is primarily due to an excessive downshift in the electron affinity nonfullerene acceptors, which hinders efficient charge extraction. Here, we introduce MXene interlayer (Ti3C2OHx) simultaneously optimize energetic landscape at ZnO/active layer interface and passivate ZnO surface defects. The modified helps reduce energy barriers, mitigate nonradiative recombination, enhance extraction OSC devices, enabling a remarkable PCE 18.55% with improved storage photostability, among highest reported inverted OSCs. These findings establish as versatile material interfacial engineering high-efficiency
Язык: Английский
Процитировано
0
Journal of Materials Chemistry C, Год журнала: 2024, Номер 12(27), С. 9968 - 9977
Опубликована: Янв. 1, 2024
The integration of self-powered detectors and selective gas sensors into a single system introduces next-generation optoelectronic that overcome the limitations power consumption poor selectivity.
Язык: Английский
Процитировано
2