Being absent from larger mismatch of ionic radius and chemical coordination between the cations in Cu2ZnSn(S,Se)4 (CZTSSe) can aggravate the formation of detrimental cation antisite defects and clusters with low formation energy, which results in serious open-circuit voltage deficit and a challenge for higher power conversion efficiency of CZTSSe solar cells. External cation doping or alloying is a

Artificial photosynthesis converting carbon dioxide into chemical fuels with high added value is a promising solution to both fossil fuel shortage/pollution and global climate change, however, the development of highly efficient photocatalysts towards this goal is still largely bereft of fresh ideas. Herein we proposed a “cascade electron transfer” strategy through spurring both interfacial and inner

To scale up production of perovskite photovoltaics, state-of-the-art laboratory recipes and processes must be transferred to large-area coating and drying systems. The development of in situ monitoring methods that provide real-time feedback for process control is pivotal to overcome this challenge. In this work, we demonstrate correlative in situ multi-channel imaging (IMI) obtaining reflectance,

The Dion-Jacobson (DJ) perovskites solar cells (PSCs) demonstrate impressive humidity stability compared to 3D counterparts and have aroused extensive attention recently. However, how the humidity condition influencing the photovoltaic performances has not been elucidated yet. Herein, we systematically investigated the effect of humidity condition on the crystallization behavior, charge dynamics, photovoltaic

The photovoltaic perovskite research community has now developed at large set of tools and techniques to improve the power conversion efficiency (PCE). One such arcane trick has been to allow the finished devices to dwell in time, and the PCE often improves. Here, a mild post-annealing procedure is implemented on co-evaporated perovskite solar cells confirming a substantial PCE improvement, mainly

Metal halide perovskites are considered as a game-changer for future solar cell technology due to their rapidly increased device efficiencies and potential for manufacturing at low cost. In view of their promising commercial potential, increasing research efforts have now been dedicated to the development of large-area perovskite solar modules. In this review article, the motivation for developing

Single-sided etching (SSE) of a-Si/poly-Si is typically considered a challenge for realizing a cost–efficient TOPCon production sequence, as there is a certain degree of unwanted wrap–around for various poly-Si deposition technologies such as LPCVD, PECVD and APCVD. To date, alkaline or acidic wet-chemical solutions in either inline or batch configurations are used for this purpose. In this work, we

In organic solar cells (OSCs), interfacial properties between the donor phase and hole transport layers (HTLs) are critical factors which govern charge extraction efficiency. Many ionic and polar materials are known to function as effective interfacial layers, however, an understanding of how ionic moieties affect the electronic band structure and characteristics of OSCs is lacking. In this study,

We report a P-doped polycrystalline silicon-nitride (n-poly-SiNx) as the electron selective collection layer in tunnel oxide passivated contact (TOPCon) solar cell. The nitrogen (N) content is controlled by the active gas ratio of R=NH3/(SiH4+NH3) during the plasma-enhanced chemical vapor deposition (PECVD) process. The effects of R ratio on the material’s composition, crystallinity, surface passivation

The addition of a third component to a binary bulk heterojunction configuration in organic solar cells is called ternary organic solar cells (TOSCs), which is trending as a solar cell configuration that strikes balance between tandem and binary bulk heterojunction organic solar cells by increasing spectral absorption without laborious processing methods. Besides increasing the spectral range, the third

Organic-inorganic lead halide perovskites (OIHPs) have emerged as promising materials for next-generation photovoltaics. However, performance improvements in the perovskite-based device are still limited due to defects that exist more intensively on the surface as well as grain boundaries (GBs) and mismatching energy levels at the interface. Herein, we have adopted a reactive post-treatment process

Donor-acceptor copolymer-based polymer solar cells (PSCs) processed with nonhalogenated solvents exhibit relatively low power conversion efficiency (PCE) due to undesirable morphological properties including high aggregation, rough surface morphology and unfavorable edge-on orientation. Moreover, they show very poor long-term stability owing to excessive molecular aggregation and unfavorable phase

The subject of hydrogen-boron interactions in crystalline silicon is revisited with reference to light and elevated temperature-induced degradation (LeTID) in boron-doped solar silicon. Ab-initio modelling of structure, binding energy, and electronic properties of complexes incorporating a substitutional boron and one or two hydrogen atoms is performed. From the calculations, it is confirmed that a

Sol. RRL 2021, 5, 2000392 DOI: 10.1002/solr.202000392 This article corrects the following reference [38]. F. L. Zhao, Y. Y. Feng, Y. Wang, X. Zhang, X. J. Liang, Z. Li, F. Zhang, T. Wang, J. L. Gong, W. Feng, Nat. Commun. 2020, 11, 13. contains a typo and should read F. L. Zhao, Y. Y. Feng, Y. Wang, X. Zhang, X. J. Liang, Z. Li, F. Zhang, T. Wang, J. L. Gong, W. Feng, Nat. Commun. 2020, 11, 1443. This

2D MXene materials showed great interest in photothermal conversion, especially for solar steam generation. However, the obvious light losses at the liquid−solid interfaces still limited its broad applications, thereby resulting in poor light absorption ability. To this end, a facile and general approach was designed for the construction of nanoflower MXene@MoS2 with excellent photothermal conversion

Green hydrogen will be an essential part of the future 100% sustainable energy and industry system. Up to one third of the required solar and wind electricity would eventually be used for water electrolysis to produce hydrogen, increasing the cumulative electrolyzer capacity to about 17 TWel by 2050. Key method applied in this research are a learning curve approach for the key technologies, i.e. solar