SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2024
·
IF 6.3
Lei Sun,Chu Zhang,Gence Bektaş,Xiaowei Li,Chunying Ma,Tingli Ma
The power conversion efficiency (PCE) of organic-inorganic halide perovskite solar cells (PSCs) developed rapidly in recent years. However, the defects at the bulk grain boundaries and heterojunction interfaces acting as non-radiative recombination centres and the ion-migration channels severely hinder the charge transport and stability of the PVKs, resulting in low PCE and poor stability. One of the principal impediments to the commercialization of PSCs resides in the challenge posed by this particular aspect. In this work, we employed 2-fluoroisonicotinic acid (2-FINA) as a passivation agent to improve the PCE and stability of n-i-p PSCs by interfacial modification strategy. Owing to the presence of carboxyl (COOH) functional groups and pyridine groups, 2-FINA can strongly interact with uncoordinated Pb 2+ and regulate the growth of perovskite crystals, which in turn reduces ion migration and suppress non-radiative recombination along with improves optical properties. Thanks to these improvements, the champion n-i-p PSC solar cell, treated with 2-FINA, showed a PCE of 20.92 %, whereas the untreated one in the same batch exhibited a PCE of 17.13 %. In long-term stability tests, we demonstrated that 2-FINA treatment significantly increases the moisture resistance of non-encapsulated devices.
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ACS Nano
·
2024
·
IF 15.8
Xing Zhang,Qiaoyan Ma,Yousheng Wang,Jianzha Zheng,Quanxi Liu,Liming Liu,Peng Yang,Wujie He,Ye Cao,Weiyuan Duan,Kaining Ding,Yaohua Mai
Phase heterogeneity of bromine–iodine (Br–I) mixed wide-bandgap (WBG) perovskites has detrimental effects on solar cell performance and stability. Here, we report a heterointerface anchoring strategy to homogenize the Br–I distribution and mitigate the segregation of Br-rich WBG-perovskite phases. We find that methoxy-substituted phenyl ethylammonium (x-MeOPEA+) ligands not only contribute to the crystal growth with vertical orientation but also promote halide homogenization and defect passivation near the buried perovskite/hole transport layer (HTL) interface as well as reduce trap-mediated recombination. Based on improvements in WBG-perovskite homogeneity and heterointerface contacts, NiOx-based opaque WBG-perovskite solar cells (WBG-PSCs) achieved impressive open-circuit voltage (Voc) and fill factor (FF) values of 1.22 V and 83%, respectively. Moreover, semitransparent WBG-PSCs exhibit a PCE of 18.5% (15.4% for the IZO front side) and a high FF of 80.7% (79.4% for the IZO front side) for a designated illumination area (da) of 0.12 cm2. Such a strategy further enables 24.3%-efficient two-terminal perovskite/silicon (double-polished) tandem solar cells (da of 1.159 cm2) with a high Voc of over 1.90 V. The tandem devices also show high operational stability over 1000 h during T90 lifetime measurements.
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Nano Energy
·
2025
·
IF 17.1
Qiaoyun Chen,Hatameh Asgarimoghaddam,Wenxi Ji,Wenting Wu,Ji Cao,Rui Wang,Wei Yu,Xiaoting Nie,Yi Zhou,Bo Song,Kevin P. Musselman
Although poly[bis(4-phenyl) (2,4,6-trimethylphenyl) amine] (PTAA) is a widely used hole transport layer (HTL) in perovskite solar cells, its poor conductivity and the mismatched energy levels between PTAA and formamidinium-based perovskites increase interfacial carrier recombination and charge-transport resistance. To solve these problems, inorganic CuS nanosheets were synthesized and applied as additives in PTAA for the first time. After the addition of CuS, the conductivity of the HTL improves, and the energy levels are better aligned. In addition, perovskite growth is controlled through the interaction between CuS and PbI 2 , thus improving the quality of the perovskite films, which reduces nonradiative recombination. The addition of CuS into PTAA improved the power conversion efficiency from 21.99 % to 22.92 %. Moreover, both the thermal and humidity stability improved.
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ANALYTICA CHIMICA ACTA
·
2024
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IF 5.7
Shuqian Wang,Jinli Qin,Yin Liang,Youai Ye,Yamei Guo,Shushu Li,Xiao Yang,Yong Liang
ABSTRACT Acute myocardial infarction is a sudden and high-mortality disease that can be accurately diagnosed by measuring the level of cardiac troponin I in the blood. Currently, cTnI commonly used clinical detection methods usually have excellent sensitivity and are suitable for large-scale sample detection analysis. However, most of these methods are operated through multiple steps of fixation, incubation, reaction and separation, and most of them require professionals to operate complex instruments, which greatly limits their applicability in real-time rapid detection. Therefore, a method that requires low professional skills and can perform rapid detection is necessary. We presents an alternative strategy to quantify cTnI in clinical serum samples using a combination of SERS and magnetic molecularly imprinted polymers (MMIP). MMIPs was synthesized under Polyvinyl Pyrrolidone (PVP) conditions without vinyl modification using characteristic peptide as template, MAA and DMAm as functional monomers. The internal Raman probe 4-MBA was connected through Ag-SH bonds in MMIPs to solve the problem that the target object had no Raman characteristic peak. MMIPs with high magnetic and adsorptive properties showed characteristic absorption peaks at the Raman shift of 1582 cm -1 after specific capture of the target templates. The Raman signals of the 4-MBA were reduced due to shielding effects and the detection range of this method was 0.001-100 ng·mL -1 . The recoveries and relative standard deviations (RSDs) of the spiked experiments were 103.1%-106.3% and 3.54 %-7.38 %, respectively. In summary, this work had appropriate sensitivity and specificity, and there was no significant difference in detection results after ELISA verification. It provided a flexible and practical analysis method for detecting cTnI based on SERS technology. In addition, the imprinting materials of other disease markers can be prepared by changing the template molecules, which provides a new idea for the detection of other biomarkers.
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ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Zhen-Ming Lu,Zi-Wen Qiu,Yan-Mei Li,Ke-Yan Zhang,Ye-Yang Wu,Ni Yan,Hong Cheng
Breast cancer cells are characterized by heightened autophagy, which impairs tumor-associated antigen presentation and represents a significant barrier to the antitumor immunity. In this study, a PD-L1-targeting autophagy modulator (PFC@CQ) is fabricated to activate the photoimmunotherapy against breast cancer. Specifically, the hydrophobic photosensitizer protoporphyrin IX (PpIX) is covalently linked to the hydrophobic peptide FFVLK and a PD-L1-targeting peptide sequence CLQKTPKQC, resulting in the formation of an amphiphilic photosensitizer-peptide conjugate (PpIX-FFVLK-CLQKTPKQC, called PFC), which is capable of encapsulating the autophagy inhibitor chloroquine (CQ). PFC@CQ can not only facilitate the targeted drug codelivery to PD-L1-overexpressing breast cancer cells, but also effectively disrupt their immune evasion by blocking PD-1/PD-L1 pathway. Upon light irradiation, the photodynamic therapy (PDT) of PFC@CQ induces tumor cell destruction and immunogenic cell death (ICD), causing the release of damage-associated molecular patterns (DAMPs). Simultaneously, PFC@CQ can inhibit autophagy pathway to mediate the upregulation of MHC-I, thereby enhancing antigen presentation. This cascade immunomodulation promotes the dendritic cell maturation and CD8+ T cell activation, leading to a synergistic suppression of both primary and metastatic tumors. This work introduces an innovative autophagy modulation strategy with potent immunomodulatory capability, demonstrating a potential to trigger systemic antitumor immune responses through local treatment.
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ACS Applied Electronic Materials
·
2025
·
IF 4.7
Ting Zhang,Xiaoqian Zhang,Qinan Mao,Fangyi Zhao,Heyi Yang,Xinyue Li,Jiasong Zhong
Lanthanide doping has been instrumental in tuning the emissions of double perovskite halides (DPHs) into the near-infrared (NIR) region. However, the limited penetration depth of UV excitation and typically low photoluminescence quantum yield (PLQY) of these materials restrict their utility in biomedical applications. In this paper, Cr3+-doped lead-free DPHs (Cs2NaScCl6:Cr3+) have been explored, featuring a broadband NIR emission spanning 800–1300 nm and an impressive PLQY of 76.9%. Oriented toward biological applications, we employ Yb3+ as a codopant to be introduced into Cs2NaScCl6:Cr3+. The novel Cs2NaScCl6:Cr3+,Yb3+ crystal powder displays a red-shifted emission (peaking at 995 nm) with a remarkably narrower full width at half-maximum (fwhm) of 51 nm. Importantly, the efficient energy transfer between Cr3+ and Yb3+ enables Cs2NaScCl6:Cr3+,Yb3+ to maintain a PLQY of 46.1% upon 780 nm excitation. Leveraging its NIR-I excitable and NIR-II emissive properties, Cs2NaScCl6:Cr3+,Yb3+ presents great potential in biodetection and bioimaging applications. Its superior energy transfer efficiency, high PLQY, and favorable spectral characteristics position this material as a promising candidate for advanced biomedical techniques requiring deep tissue penetration and high imaging contrast.
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Nanomedicine
·
2024
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IF 4.7
Shuhui Li,Yuansheng Liu,Xiaojun Sui,Yuzhen Zhuo,He Siqi,Zhang Sijia,Zhang Hui,Li Dihua,Zhang Dapeng,Yang Lei
Aim: To evaluate the anti-pancreatic cancer effect of novel Tubeimoside I multifunctional liposomes combined with gemcitabine.Methods: Liposomes were prepared through the thin film hydration method, with evaluations conducted on parameters including encapsulation efficiency (EE%), particle size, polydispersity index (PDI), zeta potential (ZP), storage stability, and release over a 7-day period. The cellular uptake rate, therapeutic efficacy in vitro and in vivo and the role of immune microenvironment modulation were evaluated.Results: The novel Tubeimoside I multifunctional liposomal exhibited good stability, significant anti-cancer activity, and immune microenvironment remodeling effects. Furthermore, it showed a safety profile.Conclusion: This study underscores the potential of Novel Tubeimoside I multifunctional liposomal as a promising treatment option for pancreatic cancer.
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Advanced Energy Materials
·
2024
·
IF 24.4
Yuchen Li,Shuaihua Wang,Mao Yu,Huan Li,Benben Li,Kang Zhu,Weishu Liu
Gel-based ionic thermoelectric (i-TE) cells provide alternative thermal energy harvesting from the environment, showing obvious advantages in voltage matching for self-powered Internet-of-Things (IoT) sensors. However, the gel-based i-TE cells always suffer a long thermal charging time and poor output power performance. Herein, a multilayer electrode engineering strategy is proposed from the device-design level, aiming to decrease the ions' diffusion distance, increase the electrode surface area, and facilitate the ions' reaction and recovery process. The thermal charging time is shortened from 27 to 8 min as the electrode layers increase from 2 to 8. An ultrahigh instantaneous power density of 15.8 mW m −2 K −2 and 2 h output energy density ( E 2h ) of 403 J m −2 are achieved in an 8-layer electrode i-TE cell. Finally, A flexible and wearable i-TE device with 20 units is demonstrated to generate a remarkable voltage of 3.8 V and output power of 282 µW by harvesting the human body heat. This work provides a feasible and effective route to design the i-TE device, hopefully promoting its practical power generation application.
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Food Bioscience
·
2025
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IF 5.9
Xianjiang Ye,Ran Yang,Zhizhi Yang,Baote Huang,Talha Riaz,Chao Zhao,Jicheng Chen
Food-derived peptides with angiotensin-I-converting enzyme inhibitory (ACEI) activity have garnered significant research attention. This study focused on examining ACEI peptides from Porphyra haitanensis and investigating their potential inhibitory mechanisms through a combination of in silico and in vitro methods. Five novel potential ACEI peptides (ASF: Ala-Ser-Phe, EIIL: Glu-Ile-Ile-Leu, LCVPR: Leu-Cys-Val-Pro-Arg, LDVVN: Leu-Asp-Val-Val-Asn, and LSPSW: Leu-Ser-Pro-Ser-Trp) were identified through a combination of peptidomics and in silico bioinformatics analysis, of which LSPSW showed the highest activity (IC 50 : 5.27 ± 0.53 μM). After simulated gastrointestinal digestion (SGD), the activities of LCVPR and LSPSW remained almost unchanged. The results from inhibition kinetics and molecular docking demonstrated that ACEI peptides with differing inhibition mechanisms could successfully bind to ACE through hydrogen bonds. Based on network pharmacology analysis and cellular experiments, LSPSW exerted antihypertensive effects by regulating the expression levels of peroxisome proliferator activated receptor gamma (PPARG), prostaglandin-endoperoxide synthase 2 (PTGS2), and renin (REN). This research provided a novel theoretical foundation for the high-value application of P. haitanensis .
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-10
·
IF 15.7
Chen Yong-Jun,Xu Yi-Ming,Ye Xiao-Liang,Luo Zhi-Peng,Zhu Shi-Peng,Li Ke-Feng,Lu Jiang-Feng,Wang Guan-E,Xu Gang
To significantly enhance reaction efficiency of porous heterojunctions in various applications, precise engineering of customization heterostructures through energy-level modulation is indispensable. Herein, the preparation of a core-shell porous heterojunction, UiO-66@TDCOF, is reported. Taking advantage of adjustable structure of metal-organic frameworks (MOFs), the energy-level of UiO-66 core is tailored to precisely align with that of porphyrin-based covalent organic framework (denoted as TDCOF) shell. As a results, the heterojunction transitions flexibly from a type-I to a type-II configuration, which remarkably enhances the efficiency of charge separation under light irradiation, resulting in exceptional performances in chemiresistive gas sensing. Notably, the sensitivity of (NH 2 ) 1.24 -UiO-66@TDCOF towards NO 2 is at a high level among all reported heterojunctions under visible-light condition, surpassing the majority of previously reported MOF and COF materials. This research not only presents a strategy for the design of heterojunctions but also gives an approach to material design tailored for chemical applications.
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Inorganic Chemistry Frontiers
·
2024
·
IF 6.1
Qingzheng Kong,Xiaomei Jiang,Ying Sun,Jianguo Zhu,Xutang Tao
Recently, low-dimensional copper(I)-based halide has been considered as a potential substitute for its lead-based counterpart due to its environmental friendliness, facile preparation and superior luminescence performance. In particular, as a representative efficient luminescent material, it shows great potential as a scintillator for X-ray detection. Herein, three organic copper(I) halide single crystals were grown by incorporating a conjugated organic cation (4-benzylpyridine, 4-bzpy) with copper(I) iodide modules. The three compounds exhibit distinct crystal structure and properties. Notably, the zero-dimensional cubane-like (4-bzpy)4Cu4I4 shows a broadband emission with near-unity photoluminescence quantum yield (∼99.7%) and a large Stokes shift (∼216 nm). More importantly, it demonstrates an obvious X-ray response with a high light yield (∼60 948 photons per MeV) and a perfect linear relationship with the dose rate under X-ray irradiation. The highly efficient emission of (4-bzpy)4Cu4I4 clusters mainly originates from the ligand-to-core charge transfer state. This work not only provides further understanding of the importance of crystal structure in the properties of organic copper(I) halides, but also facilitates the design and fabrication of high-performance X-ray scintillators.
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ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Liu Zhang,Chenyu Wang,Yunxiao Wei,Jie Chen,Haimeng Xin,Hengyu Zhang,Tiantian Liu,Ping Lin,Peng Wang,Xiaoping Wu,Xuegong Yu,Zhenyi Ni,Can Cui,Lingbo Xu
Interfacial recombination at the defective buried interface of perovskite solar cells (PSCs) has long been a persistent and formidable challenge. Introducing molecular bridge via self-assembled molecules (SAMs) offers an effective strategy to mitigate this issue, primarily by chemically passivating interfacial defects that cause nonradiative recombination. However, the influence of SAMs on radiative recombination is often overlooked. In this study, two SAMs with similar molecular configurations but distinct electron-donating/-withdrawing characters─3-thiopheneboronic acid (TBA) and 4-pyridineboronic acid (PBA)─are introduced at the buried interface of n-i-p PSCs. Although both SAMs effectively passivate defects, the PSCs based on them exhibit contrasting trends of performance gain and loss for PBA and TBA, respectively. Mechanistic investigations reveal that TBA featuring an electron-donating thiophene group induces n-type doping in the SnO2 electron transport layer and exacerbates radiative recombination loss, while PBA with the electron-withdrawing pyridine group behaves in an opposite way. These findings highlight the critical role of the electronic effects of SAMs on buried interface recombination beyond their defect passivation function. The trade-off between these two effects is essential for optimizing buried interface engineering through SAMs.
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