CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Yi Xin,Shengwen Zou,Jinlong Jin,Jingjing Zhang,Shiqi Lu,Jian Hua,Xiaojun Yan,Jianmei Huang
The trade-off between high visible transmittance and high photoelectric conversion efficiency poses a great challenge in the development of high-performance semi-transparent solar cells, which ultimately limits their light utilization efficiency (LUE) and practical deployment. Inorganic perovskite CsPbBr 3 is a promising candidate for semi-transparent perovskite solar cells (ST-PSCs) owing to its wide bandgap and naturally high average visible transmittance (AVT > 40%). However, the relatively low power conversion efficiency (PCE) of semi-transparent CsPbBr 3 devices has hindered the improvement of their LUE. Herein, a UV-ozone passivation strategy is proposed for depositing high-quality perovskite films. Undercoordinated Pb 2+ in the perovskite is effectively passivated by introduced oxygen atoms, forming stable Pb O bonds, which reduce the defect-state density and related nonradiative recombination. Consequently, the optimized device achieved a record PCE of 9.42% among all reported CsPbBr 3 ST-PSCs. Combined with the high AVT of 57.74%, the device delivers a remarkable LUE (5.44%) for semi-transparent photovoltaics without complex optical regulation. Furthermore, the unencapsulated devices demonstrated excellent operational stability, maintaining 92.2% of their initial efficiency after 500 h under continuous 1-sun illumination. This study provides available guidance for effective passivation without residue and realizes highly efficient, stable and cost-effective all-inorganic ST-PSCs suitable for different applications.
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ACS Applied Energy Materials
·
2026
·
IF 5.5
Min Fan,Yanqing Wang,Hui Dai,Dongchen Guo,Zhiping Fang,Chenrui Ji,Yifan Sun,Xiaochen Feng,Tongqi Ye,Chengwu Shi
Antimony selenosulfide (Sb2(S,Se)3) is an emerging photovoltaic light-harvesting layer material due to its optoelectronic properties, high absorption coefficient, low preparation cost, and high environmental sustainability. However, during the device fabrication of Sb2(S,Se)3 solar cells, a large number of defects are prone to form on the surface and interface of the film, leading to aggravated nonradiative carrier recombination, which severely restricts the improvement of device photovoltaic performance. Herein, a disulfide-bond-containing polyurethane (SSPU) is introduced as a dynamic polymeric interfacial layer for Sb2(S,Se)3 solar cells. Benefiting from the synergistic chemical coordination of polar N/O groups with surface Sb atoms and thermally activated disulfide bond rearrangement, SSPU simultaneously passivates surface dangling bonds and relieves grain-boundary stress in Sb2(S,Se)3 thin films. This dual-function modulation effectively suppresses nonradiative carrier recombination and facilitates interfacial charge transport, leading to a pronounced open-circuit voltage enhancement from 0.462 to 0.493 V and a champion power conversion efficiency of 8.28%. This work demonstrates a dynamic polymer-enabled interface engineering strategy for antimony chalcogenide photovoltaics.
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Nature Communications
·
2026
·Vol. 16
·期 1
·11082
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IF 15.7
Gong Anwen,Liu Cong,Yang Jiexi,Li Binghuan,Yang Shilin,Yang Rongshan,Wang Yousheng,Shen Kai,Xue Qifan,Li Zhiqiang,Wang Jing,Zou Bingsuo,Mai Yaohua
The inferior heterojunction quality and misaligned energy levels at the buffer/absorber interface cause severe interface recombination and large open-circuit voltage ( V OC ) loss, limiting the power conversion efficiency (PCE) of antimony selenosulfide (Sb 2 (S,Se) 3 ) solar cells. Here, we develop a field-effect passivation strategy by introducing a low-work-function Ta 2 O 5 dielectric layer between the CdS and Sb 2 (S,Se) 3 layers. This Ta 2 O 5 layer serves as an optimal substrate for growing highly crystalline Sb 2 (S,Se) 3 films while also enhancing interfacial charge transport. The positive fixed charges in Ta 2 O 5 strengthen the built-in electric field and promotes electrons extraction while suppressing holes accumulation at the interface, thereby substantially suppressing non-radiative recombination probabilities. Implementing this passivation strategy yields a record PCE of 10.95% (10.65% certified) an V OC of 695 mV, corresponding to a remarkably low voltage deficit. This work establishes a universal physical passivation paradigm for interface quality optimization and V OC loss mitigation in high-performance Sb 2 (S,Se) 3 photovoltaics.
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PubMed
高影响因子
LANGMUIR
·
2026
·
IF 4.4
Hao Gao,Weihong Fang,Zicong Xu,Yichuan Chen,Jiayu Huang,Yuehui Hu,Wenfu Gu,Zhuoran Xu,Hua Zhu
Flexible perovskite solar cells (F-PSCs) have gained significant attention for their potential in wearable and portable electronics. However, their commercialization is limited by the need for an inert atmosphere during fabrication and the challenge of achieving an annealing temperature compatible with the thermal stability of flexible substrates. To address these issues, we employed a facile confined-space annealing (CSA) strategy to fabricate high-quality flexible FAPbI3 films in ambient air. This strategy enabled effective crystallization of the flexible films at 100 °C, ensuring that the entire device fabrication process could be conducted in air with annealing temperatures not exceeding 120 °C. Such a process significantly alleviates substrate deformation and film strain induced by high temperatures. By reducing the phase-transition energy barrier, the perovskite films exhibited more uniform and compact crystallization while suppressing decomposition and secondary-phase formation, thereby markedly enhancing the mechanical stability and long-term reliability of the devices. In addition, we replaced the conventional toxic chlorobenzene with the green solvent ethyl acetate as the antisolvent, which facilitated nucleation and yielded smoother, denser films. The resulting FAPbI3 F-PSCs achieve a power conversion efficiency of 17.61%, demonstrate excellent bending stability (maintaining 80% of initial efficiency after 1000 cycles at a 6 mm radius), and exhibit remarkable moisture stability, retaining 90% of initial efficiency after 500 h at 60% relative humidity. This method provides a viable solution for the scalable production of high-performance, stable F-PSCs.
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Joule
·
2023
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IF 39.8
Tinghuan Yang,Chuang Ma,Weilun Cai,Shiqiang Wang,Yin Wu,Jiangshan Feng,Nan Wu,Haojin Li,Wenliang Huang,Zicheng Ding,Lili Gao,Shengzhong (Frank) Liu,Kui Zhao
In metal halide perovskite solar cells the formation of a 2D/3D bulk heterostructure has a positive effect on device stability but can be detrimental to charge transport and power conversion efficiency (PCE). Herein, we report that amidino-based Dion-Jacobson 2D perovskite enables the creation of an efficient and stable FAPbI 3 -based 2D/3D heterostructure in perovskite solar cells. The 2D-perovskite-assisted nucleation/growth of 3D perovskites during film formation was found by using time-resolved optical diagnostics, which decrease concentrations of voids and bulk defects of perovskite films for efficient charge transport. The planar perovskite solar cells based on 2D/3D heterostructures achieved efficiencies of 24.9% and 22.3% on rigid and flexible substrates, respectively, which are the highest efficiencies among all 2D/3D composite solar cells. Improved stability was further demonstrated, with 97% of original efficiency retained for rigid solar cells without encapsulation after 1,000 h of storage under ambient conditions (RH 30%–40%) and 92% for flexible solar cells after 3,000 bending cycles.
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Journal of Materials Chemistry C
·
2023
·Vol. 11
·期 16
·5348-5353
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IF 6.4
Zhe Fan,Xu Chen,Xiaoqing Shi,Qiwei Jiang,Yang Zhang
Here we report a simple ion-exchange method to assemble one-dimensional NiS nanowires. This special synthesis process enables NiS nanowires to form a tightly connected network of transported electrons and a hierarchical porous structure with a large specific surface area. As a result, the counter electrode formed by the NiS nanowires exhibits both good electrical conductivity and excellent electrocatalytic activity. Actually, the novel NiS nanowires present a photovoltaic conversion efficiency of 7.56% as a counter electrode for dye-sensitized solar cells (DSSCs), which is 13.85% higher than that of the conventional Pt electrode, enabling them to be used as a cheap and efficient counter electrode material for replacing the traditional Pt electrode in DSSCs.
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RSC Advances
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2023
·Vol. 13
·期 25
·17428-17435
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IF 3.9
Xiaoyu Wang,Wen Wang,Jixin Yao,Qingxiao Zhang,Xin Gao,Changcheng Lin,Qun Yang,Xueqin Zuo,Shaowei Jin,Guang Li
Dye-sensitized solar cells (DSSCs) can directly convert solar energy into electricity, and have aroused great research interest from researchers. Here, the spherical Fe7S8@rGO nanocomposites were expediently fabricated by facile methods, and applied in DSSCs as counter electrodes (CEs). The morphological features show the porous structure of Fe7S8@rGO, and it is beneficial to enhance the permeability of ions. Reduced graphene oxide (rGO) has a large specific surface area and good electrical conductivity, shortening the electron transfer path. The presence of rGO promotes the catalytic reduction of I3− ions to I− ions and reduces the charge transfer resistance (Rct). The experimental findings show that the power conversion efficiency (PCE) of Fe7S8@rGO as CEs for DSSCs can reach 8.40% (20 wt% for rGO), significantly higher than Fe7S8 (7.60%) and Pt (7.69%). Therefore, Fe7S8@rGO nanocomposite is expected to be an efficient and cost-effective CE material for DSSCs.
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高影响因子
Nature Communications
·
2023
·Vol. 14
·期 1
·1-10
·
IF 16.6
Yang Tinghuan,Gao Lili,Lu Jing,Ma Chuang,Du Yachao,Wang Peijun,Ding Zicheng,Wang Shiqiang,Xu Peng,Liu Dongle,Li Haojin,Chang Xiaoming,Fang Junjie,Tian Wenming,Yang Yingguo,Liu Shengzhong (Frank),Zhao Kui
Even though the perovskite solar cell has been so popular for its skyrocketing power conversion efficiency, its further development is still roadblocked by its overall performance, in particular long-term stability, large-area fabrication and stable module efficiency. In essence, the soft component and ionic–electronic nature of metal halide perovskites usually chaperonage large number of anion vacancy defects that act as recombination centers to decrease both the photovoltaic efficiency and operational stability. Herein, we report a one-stone-for-two-birds strategy in which both anion-fixation and associated undercoordinated-Pb passivation are in situ achieved during crystallization by using a single amidino-based ligand, namely 3-amidinopyridine, for metal-halide perovskite to overcome above challenges. The resultant devices attain a power conversion efficiency as high as 25.3% (certified at 24.8%) with substantially improved stability. Moreover, the device without encapsulation retained 92% of its initial efficiency after 5000 h exposure in ambient and the device with encapsulation retained 95% of its initial efficiency after >500 h working at the maximum power point under continuous light irradiation in ambient. It is expected this one-stone-for-two-birds strategy will benefit large-area fabrication that desires for simplicity.
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高影响因子
Materials Today Chemistry
·
2023
·
IF 7.3
Y. Chen,H. Xiang,X. Yang,R. Ran,W. Wang,W. Zhou,Z. Shao
As a revolutionary photovoltaic technology , organic-inorganic perovskite solar cells (PSCs) have attracted increasing interests because of rapidly boosted power conversion efficiencies (PCEs) in the last decade. Nevertheless, the typical methylammonium lead iodide (MAPbI 3 ) perovskite suffers from the inferior perovskite film quality and high defect amount, retarding the stability and PCEs. Using additives as defect passivators to effectively decrease the defect density and improve the perovskite film quality is a facile and useful method to enhance the PCEs and stability of MAPbI 3 -based PSCs . In this work, a new organic fluorine-based trifluoroethyl methacrylate (TFMA) is introduced into the perovskite precursor to effectively suppress the defect amount, enhance the perovskite film quality (larger grain sizes and fewer grain boundaries), adjust the energy level alignment, reduce the charge recombination and promote the electron extraction at the same time. By optimizing the amount of TFMA additive, the modified MAPbI 3 -based cell delivers a superior PCE of 21.0%, which is 16% higher than that of the control device (18.1%). Moreover, the addition of TFMA also significantly improves the moisture and thermal stability of MAPbI 3 -based PSCs. This work provides a simple and useful strategy for reducing defects and boosting the performance of organic-inorganic PSCs, which can facilitate the commercialization of PSCs.
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APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Xiaoyu Zhang,Xuan Wang,Ying Cao,Chengyang Liang,Shitong Geng,Haipeng Guo,Ying Liu,Yanhong Luo,Wenming Zhang,Ling Li
A porous coating structure transition metal oxide ZnCo 2 O 4 @NiMoO 4 composite was successfully synthesized on the surface of carbon paper (CP) by a simple two-step hydrothermal method as a Pt-free material for titanium mesh substrate counter electrodes (CEs) in dye-sensitized solar cells (DSSCs). According to BET test results, the material has a high specific surface area, which can provide abundant active sites for the redox reaction of electrolytes to enhance the utilization rate of sunlight by DSSCs, and the composite materials show remarkable electrocatalytic performance in reducing iodine electrolytes and improving the photoelectric conversion efficiency (PCE) of DSSCs. Therefore, the DSSCs equipped with ZnCo 2 O 4 @NiMoO 4 /CP material CEs achieve a PCE of 9.30 % (with J sc of 20.51 mA·cm −2 , V oc of 0.763 V, and FF is 0.60), which is much higher than that of Pt CEs (7.36 %) under the same light conditions. This is due to the excellent catalytic ability and good electrical conductivity of the composite material. On the other hand, because the titanium mesh can increase the contact area between the electrode material and the substrate compared with the FTO substrate, and the titanium mesh has good electrical conductivity, it can enhance the diffusion ability of I - / I 3 - to accelerate electron transmission.
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OPTICAL MATERIALS
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2023
·
IF 3.9
Jiejing Zhang,Haiyue Wang,Qingyun Yang,Can Gao,Chunxiao Gao,Xizhe Liu
Electron transport layers can collect photo-generated electrons and suppress interfacial recombination, which are crucial for efficient perovskite solar cells . Tin oxide is a suitable electron transport material for its wide bandgap, high electron mobility , low photocatalytic activity and appropriate energy band offsets. For the deposition of tin oxide layers, SnCl 2 precursor is usually used for the conventional solution spin-coating method. In this work, we developed an in-situ synthesized precursor, and ultrathin tin oxide layers were obtained by the combustion process at 150 °C. Furthermore, the devices with these tin oxide layers can achieve the PCE of 19.6%, while conventional tin oxide layers with SnCl 2 precursor lead to the PCEs of 16.9% and 14.9% with and without plasma treatment. This improvement can be related to the enhanced photoelectron collection and superior interfacial contact. This work provides a facile method for fabricating SnO 2 electron transport layers of perovskite solar cells at low temperature.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2023
·
IF 9.9
Maosheng Chen,Chenyu Ye,Chengqin Dai,Ruixiang Li,Ruijuan Qi,Chunhua Luo,Hui Peng,Hechun Lin
Low-cost and eco-friendly CuI hybrid compounds with various structures have recently attracted increasing attention due to their excellent optical properties and promising phosphor applications. However, the poor solubility and solution processability of bulk powders with agglomerated particle limited their practical applications greatly. In this work, we reported the self-assembly formation of CuI hybrid micron phosphors via the aqueous PVP micelle-assisted assembly route. Seven CuI hybrid micron phosphors with the emission from blue 450 nm to red 636 nm have been successfully synthesized. Among them, CuI-pyridine hybrid micron phosphors can be obtained via the reaction of CuI with various pyridines. PVP limits the size growth of the phosphors efficiently and it also plays an important role in controlling the distinct crystal phase formation. Whereas, micron phosphors based on bidentate ligands including 2-propylpyrazine, 5-bromopyrimidine or 4,4′-bipyridine need to be prepared via ligand exchange reaction. The micron phosphors present excellent stability in water and can be dispersed in the aqueous solution of PVP or PVA to form homogenous luminescent composites. The luminescent composites based on PVP are easy to use for fabricating anti-counterfeiting patterns via brush-painting or screen-printing. On the other hand, PVA composites can be applied for preparing free standing monochromatic or multichromatic emitting films as color convertor for display backlight. The PVA composites also exhibit the promising phosphor application for light-emitting diode (LED). Especially, the white LED can be directly realized via optimizing the mixing ratio of blue and orange phosphors.
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