Shuainan Liu

Gansu Agricultural University

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Hongwei Song

Shanghai University

Donglei Zhou

Fudan University Shanghai Cancer Center

Xinmeng Zhuang

State Key Laboratory on Integrated Optoelectronics

Yanjie Wu

State Key Laboratory of Polymer Physics and Chemistry

Zhichong Shi

State Key Laboratory on Integrated Optoelectronics

Xue Bai

State Key Laboratory on Integrated Optoelectronics

Lin Xu

Southeast University

Guang Li

Gansu Agricultural University

Lijuan Yan

Liaocheng University

Rui Sun

Nankai University

Cooperative Institutions

Jilin University

State Key Laboratory on Integrated Optoelectronics

Chinese Academy of Medical Sciences & Peking Union Medical College

Chinese Academy of Sciences

Gansu Agricultural University

Peking Union Medical College Hospital

Henan University

Peking University

Sichuan University

Jilin Medical University

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Toward Broad Spectral Response Inverted Perovskite Solar Cells: Insulating Quantum‐Cutting Perovskite Nanophosphors and Multifunctional Ternary Organic Bulk‐Heterojunction

Advanced Energy Materials (2022)

Yanjie Wu Nan Ding Yuhong Zhang Bin Liu Xinmeng Zhuang

Abstract Extending near‐infrared (NIR) spectral response and increasing ultraviolet utilization is still a challenge in the context of improving power conversion efficiency (PCE) for perovskite solar cells (PSCs). In this work, to extend NIR light‐harvesting of PSCs, a novel COTIC‐4F: PC 61 BM: PTB7‐Th ternary organic bulk‐heterojunction together with Au nanotriangles is integrated on the PSCs. The NIR spectral response is thus extended to 1100 nm. In fact, the COTIC‐4F: PC 61 BM: PTB7‐Th layer enables multi‐functional effects, which can serve as electron transport, trap passivation, and moisture barrier layer in addition to NIR light harvesting. For increasing UV utilization, CsPbCl 3 :Yb 3+ , Ce 3+ , Cr 3+ nanophosphors with photoluminescent quantum yield close to 200% are fabricated, which demonstrate excellent down‐conversion ability. Then, CsPbCl 3 : Yb 3+ , Ce 3+ , Cr 3+ /polymethylmethacrylate composite films are self‐assembled on a hybrid device, resulting in a 6.2% relative enhancement of short circuit current density. After simultaneously improving the NIR and UV spectral response of device, the PCE is increased significantly from 20.52% to 23.40% and the Jsc is increased from 21.79 to 25.96 mA cm −2 , representing one of the highest PCE and maximum Jsc enhancements in the reported inverted hybrid organic/PSCs. This work represents an effective and general strategy for obtaining efficient and stable PSC devices with extremely broad spectral responses.

Passivation

Quantum Efficiency

Ultraviolet

10.1002/aenm.202200005

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Citations (33)

Three-dimensional numerical wave tank containing submerged breakwaters based on the localized method of fundamental solutions

Mathematics and Computers in Simulation (2024)

Lanlan Li Zhuojia Fu Ming Qin Shuainan Liu Weihong Zeng

Breakwater

10.1016/j.matcom.2024.10.005

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Citations (0)

Full‐Spectral Response Perovskite Solar Cells Through Integration of MXene Modified Near‐Infrared Organic Heterojunction and Waveguide‐Structure Quantum‐Cutting Down‐Converter

Advanced Energy Materials (2024)

Zhichong Shi Donglei Zhou Xinmeng Zhuang Wen Xu Shuainan Liu

Abstract To date, lead‐based perovskite solar cells (PSCs) are optimized to the extreme and achieved an efficiency of as much as 26.1%. Expanding the spectral response is one of the most effective methods for achieving further efficiency breakthroughs. In this study, integrated PSCs are constructed by combining near‐infrared (NIR) organic bulk heterojunctions (BHJs) with perovskite layers to broaden the NIR spectral response range. Ultraviolet (UV)‐plasma‐treated MXene Nb 2 CT x ‐ quantum dots (QDs) are introduced to promote exciton dissociation inside the BHJ and to solve the problems of severe nonradiative exciton recombination and open‐circuit voltage ( V oc ) loss in IPSCs. In addition, CsPbCl 3 :Yb(7%),Li(2%) QDs with quantum‐cutting emission and photoluminescence quantum yield of up to 170% act as down‐converters to enhance the utilization of UV light. MgF 2 is deposited on the quantum‐cutting layer to construct a waveguide‐structured anti‐reflection layer and further increase UV photon utilization. The champion device achieves superior photoelectric performance with a photoelectric conversion efficiency of 24.3%, V oc of 1.17 V, a short circuit current of 26.65 mA cm −2 , and a fill factor of 77.95%. Champion devices exhibit excellent UV and long‐term stability. This study provides an instructive strategy for fabricating high‐performance full‐spectral‐response PSCs.

Quantum Efficiency

Quantum yield

Photoelectric effect

10.1002/aenm.202303735

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Citations (7)

Comprehensive proteomics and functional annotation of mouse brown adipose tissue

PLoS ONE (2020)

Jing Li Juan Li Weigang Zhao Haidan Sun Zhengguang Guo

Knowledge about the mouse brown adipose tissue (BAT) proteome can provide a deeper understanding of the function of mammalian BAT. Herein, a comprehensive analysis of interscapular BAT from C57BL/6J female mice was conducted by 2DLC and high-resolution mass spectrometry to construct a comprehensive proteome dataset of mouse BAT proteins. A total of 4949 nonredundant proteins were identified, and 4495 were quantified using the iBAQ method. According to the iBAQ values, the BAT proteome was divided into high-, middle- and low-abundance proteins. The functions of the high-abundance proteins were mainly related to glucose and fatty acid oxidation to produce heat for thermoregulation, while the functions of the middle- and low-abundance proteins were mainly related to protein synthesis and apoptosis, respectively. Additionally, 497 proteins were predicted to have signal peptides using SignalP4 software, and 75 were confirmed in previous studies. This study, for the first time, comprehensively profiled and functionally annotated the BAT proteome. This study will be helpful for future studies focused on biomarker identification and BAT molecular mechanisms.

Proteome

10.1371/journal.pone.0232084

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Citations (9)

Effects of extreme rainfall frequency on soil organic carbon fractions and carbon pool in a wet meadow on the Qinghai-Tibet Plateau

Ecological Indicators (2022)

Haiyan Wang Jiangqi Wu Guang Li Lijuan Yan Shuainan Liu

The frequent occurrence of extreme rainfall events may greatly affect soil organic carbon (SOC) fractions and carbon (C) pool of wet meadow in the Qinghai-Tibet Plateau (QTP). However, it remains unclear how SOC fractions will change under different extreme rainfall frequency. Therefore, we set five extreme rainfall frequency treatments in the QTP wet meadow: CK (control plots), DF1 (once a week), DF2 (once every-two weeks), DF3 (once every-three weeks), DF4 (once every-four weeks), all treatments received ambient rainfall. We found that soil particulate organic carbon (POC) content increased with the increasing of extreme rainfall frequency in 0–40 cm layer. Extreme rainfall frequency significantly decreased dissolved organic carbon (DOC) content in 0–10 cm layer. DF2, DF3 and DF4 significantly decreased the soil easily oxidizable carbon (EOC) content, DF2 significantly increased and DF4 significantly decreased SOC content in 0–10 cm layer. Soil organic carbon storage (SOCS) decreased with the increase of extreme rainfall frequency, the lowest value in DF1 treatment (85.61 mg·hm−2) and the highest value in DF4 treatment (139.92 mg·hm−2). The EOC/SOC and DOC/SOC values at 20–40 cm were greater than those at 0–10 cm under each treatment, and the proportion of SOC fractions in the surface layer (0–10 cm) was more sensitive to the extreme rainfall frequency, while in the deep soil layer (10–20, 20–40 cm) was relatively stable. Redundancy analysis (RDA) showed that soil bulk density (BD) (Explanation = 31.8 %), total phosphorus (TP) (Explanation = 12.8 %), NH4+-N (Explanation = 8.8 %) were important environmental factors affecting the SOC fractions content under extreme rainfall frequency. Our study suggests that the increase of extreme rainfall frequency in the future will lead to significant differences in the content of SOC fractions and will reduce the SOCS by affecting soil physicochemical properties, and this may have a serious impact on the C sequestration function and C pool stability of QTP wet meadow soil.

Soil carbon

Carbon fibers

10.1016/j.ecolind.2022.109853

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Citations (11)

Comparative Proteome Analysis of Brown Adipose Tissue in Obese C57BL/6J Mice Using iTRAQ-Coupled 2D LC-MS/MS

PLoS ONE (2015)

Juan Li Weigang Zhao Zhufang Shen Tao Yuan Shuainan Liu

High-fat diet (HFD) leads to the development of obesity accompanied by insulin resistance, which increases the risk of type 2 diabetes mellitus and cardiovascular disease. Brown adipose tissue (BAT) plays an essential role in energy metabolism, thus it will give us promising treatment targets through elucidating underlying mechanisms of BAT in obesity. In this study, female C57BL/6J mice were fed HFD or normal diet (ND) for 22 weeks. Hyperinsulinemic-euglycemic clamp was performed to evaluate insulin sensitivity, which was independently correlated with obesity. Using isobaric tag for relative and absolute quantification (iTRAQ) coupled with 2D LC-MS/MS, we quantitated 3048 proteins in BAT. As compared HFD with ND, we obtained 727 differentially expressed proteins. Functional analysis found that those proteins were mainly assigned to the pathway of mitochondrial function. In this pathway, carnitine O-palmitoyltransferase 2 (CPT2), uncoupling protein 1 (UCP1) and apoptosis-inducing factor 1 (AIF1) were up-regulated significantly by HFD, and they were confirmed by western blotting. The results indicated that HFD might induce the apoptosis of brown adipocytes via the up-regulated AIF1. Meanwhile, HFD also stimulated fatty acid β-oxidation and raised compensatory energy consuming through the increases of CPT2 and UCP1, respectively. However, the apoptosis of brown adipocytes might weaken the compensatory energy expenditure, and finally contribute to overweight/obesity. So, preventing the apoptosis of brown adipocytes may be the key target to treat obesity.

Thermogenin

10.1371/journal.pone.0119350

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Citations (17)

In situ preparation of two-dimensional ytterbium ions doped all-inorganic perovskite nanosheets for high-performance visual dual-bands photodetectors

Nano Energy (2021)

Rui Sun Donglei Zhou Po Lu Xiaoling Jing Xinmeng Zhuang

Quantum yield

Passivation

10.1016/j.nanoen.2021.106815

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Citations (36)

Soil Carbon and Nitrogen Pools and Their Storage Characteristics under Different Vegetation Restoration Types on the Loess Plateau of Longzhong, China

Forests (2024)

Mingjun Xie Jianyu Yuan Shuainan Liu Guorong Xu Yanhua Lu

Soil carbon and nitrogen pools are crucial for maintaining the balance of carbon and nitrogen cycling in ecosystems and also for reducing the impacts of global climate change. However, current research lacks an understanding of the effects of long-term vegetation restoration on soil carbon and nitrogen pools and their storage in vulnerable ecosystems. Therefore, we studied the characteristics of soil carbon (soil organic carbon, microbial biomass carbon, dissolved organic carbon) and nitrogen pools (total nitrogen, ammonium nitrogen, nitrate nitrogen) and their storage under four types of vegetation restoration (Stipa bungeana Trin., SB; Caragana korshinskii Kom., CK; Xanthoceras sorbifolia Bunge., XS; Picea asperata Mast., PA) in the Longzhong Loess Plateau area. We found that the carbon and nitrogen pools in the 0–40 cm soil layer under the XS and PA vegetation restoration types were higher compared to those under the SB and CK vegetation, and the values of soil ammonium–nitrogen ratios ranged from 0.72 to 0.83 under different vegetation types. Carbon and nitrogen interactions were stronger in the 0–40 cm soil under PA vegetation, which had significantly higher soil carbon (49.06 t·ha−1) and nitrogen (1.78 t·ha−1) storage than did the other vegetation types. We also found that soil carbon and nitrogen stores differed among different types of vegetation restoration. These elements were mainly distributed in soils from 0 to 20 cm depth, where the carbon and nitrogen pools in soils from 0 to 10 cm exceeded those in the lower layers. Furthermore, we discovered that redundancy analysis (RDA) supported by soil enzyme activity and physical properties significantly explained the variation in soil carbon and nitrogen triggered by vegetation restoration. According to this research, the stability and transformation of soil carbon and nitrogen pools in the region can be influenced by various forms of vegetation restoration. Additionally, the findings highlight that forest vegetation restoration can be a successful strategy for effectively sequestering soil carbon and nitrogen within the Longzhong Loess Plateau area.

Soil carbon

Nitrogen Cycle

Vegetation types

Carbon fibers

10.3390/f15010173

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Citations (5)

Simultaneous bottom-up double-layer synergistic optimization by multifunctional fused-ring acceptor with electron-deficient core for stable planar perovskite solar cells with approaching 24% efficiency

Nano Energy (2022)

Bin Liu Yuqi Wang Yanjie Wu Zhongqi Liu Shuhang Bian

Passivation

Acceptor