Insights into the Role of Vitamin C in Stabilizing Organic and Perovskite Solar Cells

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

This study provides an in-depth exploration of the mechanisms by which vitamin C enhances interfacial stability in organic solar cells (OSCs) and perovskite (PSCs). In OSCs, interacts with ZnO (O-H···O C═O···Zn2+) Y6 (O-H···F), forming a robust interface. The ZnO/vitamin devices maintained 80% their original efficiency (T80 lifetime) for 4437 h PM6:Y6 (binary) 6028 PM6:Y6:PC71BM (ternary) at 65 °C N2 atmosphere. Under AM1.5G one-sun illumination atmosphere, binary 85% 2100 h, while ternary had T80 lifetime 1,680 h. PSCs, stabilized NiOx (O-H···O, C═O···Ni3+) layer (C═O···Pb2+), achieving 1198 These results demonstrate that C, as stabilizer, offers universal strategy to improve practicality photovoltaic devices.

Language: Английский

---

Optimized surface passivation via para-carbonylated polymers for durable MAPbl₃ perovskite solar cells

Sustainable Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A para -carbonylated polymer is employed to fabricate efficient and durable perovskite solar cells.

Language: Английский

---

Optimization and Scalability of Polymer‐Modified PSCs Investigated by Machine Learning

Applied Research, Journal Year: 2025, Volume and Issue: 4(2)

Published: April 1, 2025

ABSTRACT Advanced engineering strategies are employed to optimize the performance of perovskite solar cells (PSCs). In this study, introduction polyvinylpyrrolidone (PVP) MAPbI 3 precursor results in PSCs presenting self‐healing ability a moisture environment and power conversion efficiency (PCE) up 20.35%. We utilize machine learning correlate comprehensive J–V experimental data with corresponding photovoltaic parameters. identify key factors correlations J sc , FF, V oc that primarily influence PCE scalability polymer‐modified PSCs. The findings indicated correlation between active area (AE) drops from 40% reference approximately 1% modified PVP, justifying scale‐up potential approach. This is not case for untreated devices, where largely affected by shunt (R sh ) series s resistances. evaluated 25 different algorithms through cross‐validation, Gaussian Process emerging as best‐performing model, achieving an R 2 0.94 minimal errors. model/algorithm was applied fabrication process predicting optimal amount which determined be 4.5 mg/L, current–voltage (J–V) characteristics well. study offers robust framework systematically designing optimizing durable scalable PSCs, advancing field third‐generation technology.

Language: Английский

---

Boosting the Performance of Carbon‐Based Hole‐Transport‐Layer‐Free CsPbI₂Br Solar Cells by Adding Imidazole Small Molecules

Progress in Photovoltaics Research and Applications, Journal Year: 2025, Volume and Issue: unknown

Published: May 10, 2025

ABSTRACT Carbon‐based hole‐transport‐layer (HTL)‐free CsPbI 2 Br solar cells have attracted considerable interest due to the improved stability, simple structure, rich application scenarios, and low cost, as compared with their organic–inorganic hybrid counterparts. However, uncoordinated Pb 2+ mobile I − ions impose challenges for fabricating a cell good comprehensive performance. To address related issues, herein, we introduce facile additive strategy using an organic small molecule material, i.e., 1H‐imidazole‐4‐carboxylic acid (ICA), improve performance of carbon‐based HTL‐free cells. Benefitting from effective passivation anchoring , well increased crystallinity reduced surface roughness layers by ICA, optimal delivers power conversion efficiency (PCE) 14.71%, ⁓24.7% increment relative PCE 11.80% control device without ICA addition. Moreover, ICA‐added exhibits evidently hysteresis current–voltage characteristics notably enhanced in contrast device.

Language: Английский

---