ADVANCED FUNCTIONAL MATERIALS
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2023
·
IF 19
Tianjiao Han,Weidong Zhu,Tianran Wang,Mei Yang,Yuanbo Zhou,He Xi,Peng Zhong,Dazheng Chen,Jincheng Zhang,Chunfu Zhang,Yue Hao
Two-terminal, mechanically-stacked perovskite/silicon tandem solar cells offer a feasible way to achieve power conversion efficiencies (PCEs) of over 35%, provided that the state-of-the-art industrial silicon solar cells and perovskite solar cells (PSCs) are fully compatible with one another. Herein, two-terminal, mechanically-stacked perovskite/silicon tandem solar cells are developed by mechanically interconnecting semitransparent PSCs and TOPCon solar cells with a MXene interlayer. The semitransparent PSCs are made from wide-bandgap perovskite Cs 0.15 FA 0.65 MA 0.20 Pb(I 0.80 Br 0.20 ) 3 films. Furthermore, the co-additives KPF 6 and CH 3 NH 3 Cl(MACl) are employed to reduce grain boundaries and intragranular defects in the perovskite, boosting the PCE of the semitransparent PSCs to a record-high value of 20.96% under reverse scan (RS) through a reduction in non-radiative recombination probability. These optimized semitransparent PSCs are then employed in MXene-interconnected two-terminal, mechanically-stacked tandem solar cells. The enhanced interfacial carrier transportation, with minimal influence on light transmission, imparted by the MXene flakes allows the tandem solar cells to achieve a stabilized PCE of 29.65%. The tandem cells also exhibit acceptable operational stability and are able to retain ≈93% and 92% of their initial PCEs after 120 min of continuous illumination or storage in ambient air for 1000 h, respectively.
研究领域:
材料科学
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能源技术
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光伏器件
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Xuefei Zhang,Bing‐Chiuan Shiu,Ting-Ting Li,Xing Liu,Hai-Tao Ren,Yanting Wang,Ching-Wen Lou,Jia-Horng Lin
Human body microenvironment adaptive power generator with multifunction is attractive for the development of portable wearable devices. Here, a PEDOT-based photo-thermoelectric textile is developed via a two-step strategy, where the PDA is introduced to induce PEDOT to form the hierarchical structure. Thus, the top surface of the PEDOT-based textile owns the excellent thermoelectric performance ( PF = 88.70 nW/(m•K 2 )), and the bottom surface holds a great photothermal effect that can reach about 80 °C under 175w IR light. In addition, the PEDOT-based textile has 51.87% of solar conversion efficiency under 3 sun. A assembled textile solar panel fabricated by the sewing method renders a voltage output of 1.37 mV under 500w illumination. Interestingly, with the synergistic work of photo-thermoelectric and hydroelectric effects, the wetted textile solar panel can produce a voltage of ~ 12.5 mV and a power of 9.81 μW under 500 W illumination. Meanwhile, it can also generate the solar steam of ~ 3 g within 1 h. Therefore, such wet textile solar panels can harvest solar energy and generate solar steam at the same time, which provides a route to fabricate a smart wearable energy harvester that can be used for human body humidity management.
研究领域:
材料科学
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能源技术
·
纺织工程
✓ 已验证
产品关联
DOI
高影响因子
Solar RRL
·
2024
·
IF 6
Shijun Lei,Zhaoxin Li,Hongsheng Xu,Jiajia Liu,Wei Cai,Lei Song,Yuan Hu
Solar-driven steam generation by heat localization has proven to be one of the most promising technologies for broad water-related applications to relieve global water shortage and pollution due to the excellent interfacial water evaporation ability demonstrated both experimentally and theoretically. However, solar power changes fast in practical, such fluctuations on solar energywould invalidate conventional solar evaporator, leave a challenge on sustaining an efficient thermal evaporation. Herein, a mitigating-solar-fluctuation hybrid gel material (MHG) with chemical integrating of phase-change material to achieve efficient steam generation under solar fluctuations is reported. By storing solar energy when it is surplus and providing thermal energy to sustain evaporation when it is insufficient, the MHGs solar evaporator under solar fluctuations achieves optimized water evaporation rate of 1.7 ± 0.02 kg m −2 h −1 for the high period of 0.8 sun and 1.3 ± 0.06 kg m −2 h −1 for the low period of 0.5 sun. The MHGs also exhibit outstanding solar desalination performance with good stability and demonstrate an effective brine desalination during round-the-clock desalination process with an average high evaporation rate of 1.24 kg m −2 h −1 d −1 . This new material design provides a feasible strategy for solar evaporator to mitigate damage from solar fluctuations.
研究领域:
材料科学
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能源工程
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
Advanced Sustainable Systems
·
2024
·
IF 6.5
Shuang Liu,Jiajia Huang,Liang Tu,Xiaohui Liu,Jing Zhang,Yuejin Zhu,Like Huang
The high photoelectric conversion efficiency (PCE) of solar cells and their environmentally friendly, low-carbon manufacturing processes are crucial for advancing carbon neutrality goals. This study introduces Fresnel lenses to focus sunlight for the sintering of mesoporous titanium dioxide (m-TiO 2 ) layers as an innovative method for fabricating perovskite solar cells (PSCs), effectively circumventing the energy-intensive and carbon-emitting high-temperature furnace sintering traditionally required. Through this concentrated solar annealing technique, an efficient and eco-friendly sintering of the m-TiO 2 layer is successfully achieved by removing organic residues from the precursor film and enhancing the film's transmittance, electrical conductivity, and grain size. Consequently, this has led to improved coverage of the perovskite layer and enhanced overall photovoltaic performance of the solar cells. Experimental results indicate that the m-TiO 2 film subjected to 60 min of concentrated sunlight sintering (CSS) demonstrates optimal photovoltaic performance, with the fabricated compact-layer-free PSCs achieving an impressive photoelectric conversion efficiency of up to 17.69%. This research not only offers a novel, cost-effective approach for the sustainable production of PSCs but also contributes tangible solutions for the green transformation of the photovoltaic industry and the achievement of carbon neutrality. This work points the way toward using solar energy to prepare solar power generation devices.
研究领域:
材料科学
·
能源工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Chemistry
·
2021
·
IF 9.676
Pengjie Hang,Jingkun Cong,Ge Li,Lijian Zuo,Chenxia Kan,Biao Li,Jiangsheng Xie,Yuxin Yao,Ying Wang,Hongzheng Chen,Deren Yang,Xuegong Yu
Perovskite/Silicon (PS) tandem solar cells have attracted much interest over recent years. However, the most popular crystalline silicon solar cells utilized in tandems require complicated fabrication processes mainly including texturization, diffusion, passivation and metallization, which takes up much cost in photovoltaic market. Here, we report a facile graphene/silicon (Gr/Si) solar cell featuring of low-temperature (≤200 °C) processing and an efficiency of 13.56%. For reducing the heat dissipation loss of high energy photon, the perovskite solar cell (PSC) with a wide band gap of 1.76 eV was adopted as the top cell for the tandem. To reduce the loss of parasitic absorption in hole transport layers (HTLs), thickness of Spiro-OMeTAD is re-optimized by compromising the efficiency and the optical transmittance of the devices. As a result, the semitransparent top perovskite solar cell yields a highest efficiency of 13.35%. Furthermore, we firstly achieved a low-temperature-processed four-terminal (4-T) perovskite/graphene-silicon (PGS) heterojunction tandem solar cell with the efficiency of 20.37%. The levelized cost of electricity (LCOE) of PGS 4-T modules were estimated to a competitive price, exhibiting much greater potential for practical application compared to that of PS 4-T modules.
研究领域:
材料科学
·
能源技术
✓ 已验证
DOI
高影响因子
Advanced Sustainable Systems
·
2024
·
IF 6.5
Tingjie Chen,Yuhan Tang,Na Song,Zhaoxing Lin,Lihong Xu,Xiangfang Peng,Xin Chen,Minghui He
Solar steam generation (SSG) using floatable evaporators to absorb solar energy and generate heat at the water–air interface has attracted increasing interest in achieving water purification and desalination. Using biodegradable and porous biomass materials as evaporators to fabricate high-performance SSG devices is a promising route, but the poor efficiency and fussy and energy-intensive manufacturing process for biomass material-based evaporators will restrict their practical application. Here, an old commercial cotton quilt is used to prepare porous cotton fiber sponges (CFS) via a simple and scalable mechanical foaming strategy. After being decorated by the polypyrrole (PPy), the CFS@PPy sponge with a hierarchical porous structure shows broadband light absorption capacity, good hydrophilicity, and excellent photothermal capacity. The obtained sponge can be directly used as an evaporator floating on the seawater and shows a high steam-generation efficiency of 85.07% under 1 sun irradiation. Additionally, it can be used as a photothermal material to construct a solar thermoelectric generation (STG) device and achieve an enhanced open-circuit voltage (V out ) of 0.4 V and output current (I out ) of ≈59.6 mA under 5 sun irradiations. With the help of a boost converter, the power generation from the STG device can continuously charge the electric bulb and wristband.
研究领域:
材料科学
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能源科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
Sustainable Energy & Fuels
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2024
·
IF 5
Fuqiang Zhang,Zhiqiang Qi,Xiangsheng Han,Hongzhen Cai,Keyan Yang
Interfacial solar steam generation (ISSG) is an effective method to produce clean water through evaporating seawater actuated by solar energy. Nevertheless, developing a solar evaporator that is simultaneously simple in process and maintains good stability and high efficiency is still difficult but in great demand. Herein, an aerogel solar evaporator was prepared by cross-linking chitosan (CS) and two-dimensional transition metal carbide/nitride (MXene) nanosheets with excellent properties via a simple freeze-drying strategy. The unique three-dimensional network structure and good biocompatibility could facilitate quick transport of water from the bottom up to the evaporation surface by capillary force. MXene nanosheets combined a broad spectral response with strong solar absorption capacity, enabling the CS/MXene aerogel solar evaporator to exhibit strong light absorption, light-to-heat conversion, and water transport capabilities. The results showed that the water evaporation rate under one sun was as high as 1.80 kg m−2 h−1, with an energy conversion efficiency of 75.2%. Notably, the stability of the solar evaporator ensured stable solar water evaporation over a long period compared with most CS-based solar evaporators. Meanwhile, clean water could be continuously produced from acidic, alkaline and organic dye solutions, and saline brines. These tactics pave a new way for developing solar absorbers for solar-driven desalination.
研究领域:
材料科学
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环境科学
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能源科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2020
·Vol. 9
·期 1
·390-399
·
IF 11.301
Tiantian Li,Qile Fang,Jianqiang Wang,Haibo Lin,Qiu Han,Peng Wang,Fu Liu
Interfacial solar vapor generation demonstrates great potential for water purification. To facilitate water evaporation processes, materials with high solar-thermal efficiency and low thermal loss are developed. Herein, a heteromorphic arch-like evaporator is presented for exceptional solar-to-steam conversion by designing a versatile heteromorphic array configuration of polytetrafluoroethylene (PTFE) hollow fibers decorated with carbon nanotubes (CNT). The arch-like fiber array achieves a 360° evaporation and generates extra thermal energy from the absorptive base (carbon cloth, PS foam and PVDF membrane) by manipulating a fiber array pattern (compact, staircase and spaced). An indoor evaporation rate of 2.15 kg m−2 h−1 and outdoor freshwater reclamation of 10–16 kg m−2 per day can be obtained with multiple fiber staircase arrays using carbon cloth as the base under one sun illumination.
研究领域:
材料科学
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能源工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Yanjun Li,Ruhao Zan,Yuanjin Wang,Longqiang Shang,Ronghui Wu,Yue Liu,Zhenggang Rao,Kai Yao,Yi Liu,Linfeng Fei
Graphene-based materials are frequently highlighted as the candidate for solar steam generation (SSG) because of their advantages such as high solar absorption, tunable structure and low cost. However, graphene itself is not a “perfect” absorber for full solar spectrum and cannot efficiently transport water on its surface due to its intrinsic physicochemical characteristics. Here we designed and synthesized a graphene foam in a three-dimensional (3D) interconnected porous structure with silicon carbide nanoparticles anchored on graphene surfaces. The systematical characterizations confirm that the hybrid structure extends the solar absorption window of graphene in full solar spectrum; and moreover, the in situ environmental scanning electron microscopy (ESEM) experiments suggest the incorporation of SiC nanoparticles on two-dimensional graphene surface improves the condensation and transportation kinetics of water in the foam. As a result, the SSG device based on the graphene-SiC composite demonstrates an improved energy conversion efficiency up to 95% under one sun illumination compared with those of previous reported graphene-based materials. The findings may shed new light on the technologies for solar-energy-water nexus.
研究领域:
材料科学
·
能源技术
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2016
·
IF 6.333
Jinlian Bi,Liyong Yao,Jianping Ao,Shoushuai Gao,Guozhong Sun,Qing He,Zhiqiang Zhou,Yun Sun,Yi Zhang
The issues of rough surface morphology and the incorporated additives of the electro-deposited Cu layers, which exists in electrodeposition-based processes, is one of the major obstacles to improve the efficiency of Cu(In,Ga)Se 2 (CIGSe) and Cu 2 ZnSnSe 4 (CZTSe) solar cells. In this study, the pulse current electro-deposition method is employed to deposit smooth Cu film on Mo substrate in CuSO 4 solution without any additives. Grain size of the deposited Cu film is decreased by high cathode polarization successfully. And the concentration polarization , which results from high pulse current density, is controlled successfully by adjusting the pulse frequency. Flat Cu film with smooth surface and compact structure is deposited as pulse current density @ 62.5 mA cm −2 , pulse frequency @100,000 Hz, and duty cycle @ 25%. CIGSe and CZTSe absorber films with flat surface and uniform elemental distribution are prepared by selenizing the stacking metal layers electro-deposited by pulse current method. Finally, the CIGSe and CZTSe solar cells with conversion efficiency of 10.39% and 7.83% respectively are fabricated based on the smooth Cu films, which are better than the solar cells fabricated by the rough Cu film deposited by direct current electro-deposition method.
研究领域:
材料科学
·
可再生能源
·
电化学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Longshi Rao,Shengxin Zhu,Yang Liu,Qiuling Bai,Jiaying Liu,Mingfu Wen,Qingxian Liu,Guisheng Zhong,Xiaodong Niu
Halide perovskite solar cells (HPSCs) are a promising technology for solar energy conversion, owing to their low cost and high efficiency. However, their practical deployment is limited by instability and degradation under prolonged sunlight exposure. This study addresses these challenges by integrating fluorescent solar concentrators (FSCs) with HPSCs. FSCs, which combine fluorescent materials with an optical waveguide medium, offer a promising solution by enhancing light harvesting while reducing the direct exposure of solar cells. We present a multi-colored carbon dots (CDs)-based FSC designed to tackle key issues related to light efficiency, reabsorption, and stability. The CDs are synthesized to exhibit high photoluminescence quantum yield, substantial Stokes shifts, and excellent photothermal stability. Additionally, the optical waveguide structure is optimized through simulation tools to maximize light gathering efficiency. Simulation results demonstrate that a five-layered equilateral triangular waveguide structure can achieve up to 100% light gathering efficiency, effectively overcoming the limitations of traditional materials’ refractive indices. The integration of optimized FSCs with HPSCs reduces temperature stress mitigates UV degradation, and minimizes spatial footprint. The combination of the multi-colored CDs and optimized waveguide structure leads to a significant performance boost, achieving an optical efficiency of up to 16.95%. This work offers a cost-effective and scalable approach for improving the optical efficiency and stability of HPSCs, with promising applications in building-integrated photovoltaics, smart windows, and rooftop solar systems.
研究领域:
材料科学
·
光学工程
·
可再生能源技术
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Energy
·
2025
·
IF 8.6
Dandan Chen,Fengxia Yang,Mei Yang,Wenming Chai,Weidong Zhu,Chunfu Zhang,Yun Zhao,Yan Li
Perovskite and Cu(InGa)Se 2 (CIGS) tandem solar cells are emerging as an exciting prospect to achieve high-performance, cost effective, and lightweight all-thin-film photovoltaics, wherein perovskite solar cells (PSCs) fabricated using high-quality wide-bandgap perovskite films are critical to realize the high-efficiency PSC/CIGS tandem solar cells. Herein, a stepwise dimethyl sulfoxide (DMSO) solvent-annealing strategy is proposed to fabricate wide-bandgap (1.68 eV) Cs 0.15 FA 0.65 MA 0.2 PbI 2.4 Br 0.6 films via stepwise heating recipe, that is annealed at 100 °C firstly and then 80 °C. This modified solvent-annealing method makes for the Cs 0.15 FA 0.65 MA 0.2 PbI 2.4 B r0.6 films with full coverage, large grains, improved crystallinity, and free of impurities. Opaque PSCs with the desired Cs 0.15 FA 0.65 MA 0.2 PbI 2.4 B r0.6 films exhibit a champion power conversion efficiency (PCE) of 21.66 % and excellent stability. Furthermore, using an optimized IZO transparent electrode, the semitransparent PSCs with an impressive PCE of 21.26 % and a high bifaciality factor of 92.2 % are fabricated. These PSCs can further enable the four-terminal (4-T) PSC/CIGS tandem solar cells with a summed PCE of 29.36 %, surpassing of most the similar tandem solar cells reported earlier.
研究领域:
材料科学
·
光伏技术
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）