JOURNAL OF APPLIED POLYMER SCIENCE
·
2017
·Vol. 134
·期 35
·45235
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IF 1.86
Wei Yuan,Gaoyi Han,Yaoming Xiao,Yunzhen Chang,Ying Zhang,Hua Song
Polypyrrole deposited on titanium mesh (PPy–TiM) was fabricated via a galvanostatic method with titanium mesh as the substrate to electrochemically deposit polypyrrole (PPy) doped with p -toluene sulfonate anions. The influence of the deposition time on the characteristics of the PPy–TiM samples was investigated. Then, semitransparent flexible electrochemical capacitors were assembled with the optimal samples of PPy–TiM as electrodes and H 3 PO 4 –poly(vinyl alcohol) as the gel electrolyte. The testing results show that PPy in the optimal PPy–TiM electrode had a specific capacitance of about 326 F/g, and the capacitance of the assembled cells still remained unchanged or up even after 20,000 cycles. Just as expected, the cells possessed semitransparent and good flexibility, and three cells connected in series could drive an LED device. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2017
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
International Journal of Nanomedicine
·
2019
·
IF 4.471
Shiqi Dai,Ying Chen,Jiaxue Yang,Feng He,Chen Chen,Haifeng Xie
Purpose To investigate the effects of nanozirconia fillers conditioned with 10-methacryloyloxydecyl dihydrogen phosphate (MDP) with or without zirconium hydroxide precoating on bending strength, Vickers hardness, and translucence of dental resin composites.Methods We obtained nanozirconia fillers coated with different concentrations of Zr(OH)4 using wet-chemical synthesis. We analyzed coating quality by observing electron-diffraction patterns using transmission electron microscopy. We conditioned zirconia fillers, with or without prior Zr(OH)4-coating, using MDP-containing primers and evaluated the formation of chemical bonds using nuclear magnetic resonance (NMR) and X-ray photoelectron spectroscopy (XPS). We then performed three-point bending-strength tests, Weibull analysis, Vickers hardness, and translucence-parameter analysis with or without addition of different concentrations of zirconia using untreated zirconia fillers as controls.Results We achieved desirable Zr(OH)4 coating using 5 mmol/L zirconium chloride. NMR and XPS analysis detected stronger Zr–O–P peaks on MDP-conditioned zirconia fillers with prior Zr(OH)4-coating compared with MDP-conditioned fillers alone, suggesting that MDP bonding with zirconia was enhanced by zirconium hydroxide. Our three-point bending-strength tests revealed that increasing levels of untreated zirconia fillers decreased the three-point bending strength of the resin composites, while MDP-conditioned zirconia fillers with or without prior Zr(OH)4 coating improved three-point bending strengths. Adding 5 wt% and 7.5 wt% MDP-conditioned zirconia fillers with prior Zr(OH)4 coating achieved the highest three-point bending strength. Furthermore, addition of zirconia fillers decreased the translucence of silica-based resin composites.Conclusion MDP conditioning with prior Zr(OH)4 coating is recommended for treating nanozirconia fillers of resin composites.
研究领域:
牙科材料学
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复合材料科学
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产品关联
DOI
PubMed
高影响因子
Advanced Optical Materials
·
2023
·Vol. 11
·期 15
·2203140
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IF 9
Jing Yang,Ziyu Wang,Lu Liu,Le Wang,Zhen Chang,Jianxun Li,Kai Wang,Shengzhong (Frank) Liu
Organic lead halide perovskites are regarded as qualified candidates for the photoactive layers of semitransparent solar cells. The critical aspect of boosting the performance of semitransparent perovskite solar cells (PSCs) to a higher level lies in preparing perovskite films with both excellent photoelectric properties and high transmittance. Herein, it is realized that, through theoretical analysis, perovskite materials with bandgap of 2.00–2.30 eV are suitable for the preparation of semitransparent PSCs that can simultaneously achieve low thermal-energy loss, allow transmission of light for high photopic response, and provide acceptable transmittance for photovoltaic greenhouses. Then the study aims at improving the crystallinity and morphology of wide-bandgap perovskite films by using additive engineering. As such, PSCs with absorber bandgaps of 2.02, 2.16, and 2.32 eV deliver maximum power-conversion efficiencies of 12.08%, 9.17%, and 8.42%, respectively. Then the corresponding semitransparent PSCs are crafted with average transmittance of light detectable by the human eye of 9.41%, 23.26%, and 43.47%, respectively. Furthermore, the crop growth factors are predicted to be 21.25%, 29.48%, and 37.07%, respectively. This work gives full play to bandgap modulation in the fabrication of semitransparent PSCs, which will broaden the application of semitransparent solar cells in the field of building integrated photovoltaics.
研究领域:
材料科学
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光伏技术
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能源转换
✓ 已验证
产品关联
DOI
高影响因子
Nano Energy
·
2025
·
IF 17.1
Haozhou Huang,Yifan Wu,Yuxin Ma,Peng Xue,Yan Cao,Bo Wang,Xinzhao Zhang,Shudi Wang,Zhenqian Pang,Tengyao Jiang,Yanghua Lu,Gang Tan
Semitransparent organic photovoltaic (ST-OPV) windows have emerged as a promising solution for sustaining renewable energy and enhancing energy efficiency in buildings, for their ability to provide natural lighting while simultaneously generating electricity. However, the building field lacks a unified and comprehensive framework to guide the selection of materials and structural design for ST-OPVs in building envelopes, especially windows. To address this gap, this work establishes a systematic screening framework for ST-OPV device structures, focusing on active layer materials, interface layer materials, and electrode thicknesses. Instead of solely focusing on enhancing light utilization efficiency (LUE), the screening process integrates conventional photovoltaic performance metrics such as power conversion efficiency (PCE) and average visible transmittance (AVT) with essential architectural indices, including color rendering index (CRI), thermal performance, and overall building energy efficiency, ensuring that the designed ST-OPV can be truly applied in real world. The results indicates that ST-OPVs based on the PM6:Y6 system with a wide-bandgap donor showing top-tier performance cannot meet building code requirements for exterior windows, while ST-OPVs using the PCE10–2F:Y6 system with a narrow-bandgap donor can be fabricated into fully code-compliant photovoltaic windows, providing energy-saving benefits in any climate zone worldwide. The correspondingly designed ST-OPV window demonstrates a U-factor of 0.654 W/m 2 K, a solar heat gain coefficient (SHGC) of 0.236, and an AVT/SHGC ratio of 1.356. Compared to conventional commercial windows, this ST-OPV window can achieve annual energy savings of 74.8–239.7 kWh/m 2 around the world, showcasing its potential for real-world energy-efficient building applications.
研究领域:
材料科学
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能源工程
·
建筑设计
✓ 已验证
产品关联
DOI
高影响因子
Solar RRL
·
2024
·Vol. 8
·期 10
·2400126
·
IF 6
Linge Xiao,Hong Zhang,Shilin Li,Qian Cheng,Yingyu Zhang,Yanxun Li,Yuan Zhang,Huiqiong Zhou
Semitransparent organic solar cells (ST-OSCs) generally suffer from voltage loss in comparison to their opaque counterparts. Herein, ST-OSCs constructed with conventional and inverted structures have been explored. The voltage losses of the inverted ST-OSCs are lower than that of the conventional architectures when the thicknesses of the top transparent electrodes approach the percolation threshold, which is attributed to the larger surface energy of the bottom seeding layers, higher built-in electric fields, and lower recombination losses. Moreover, ST-OSCs with conventional architectures based on four commonly used electrode transporting layers (ETLs) PDINN, PDINO, PNDIT-F3N, and PFN-Br are employed to distinguish the V oc variation when capping with 10 nm top electrodes. It is revealed that ETL with larger surface energy and a stronger ability to reduce the cathode work function is more beneficial for reducing the voltage loss for ST-OSCs. This work demonstrates the crucial role of device structure and interfacial layers in optimizing the ST-OSC device performance.
研究领域:
材料科学
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光伏技术
✓ 已验证
产品关联
DOI
高影响因子
EcoMat
·
2021
·Vol. 3
·期 4
·e12117
·
IF 0
Yiyi Zhu,Lei Shu,Qianpeng Zhang,Yudong Zhu,Swapnadeep Poddar,Chen Wang,Zhubing He,Zhiyong Fan
Semi-transparent perovskite solar cells (ST-PSCs) engendered enormous attention for practical applications such as power generation windows. However, it is still challenging to achieve high-performance, robust and neutral-colored ST-PSCs. Herein we demonstrate a moth-eye-inspired structure (MEIS) for light-trapping photons in the wavelength range where the human eye is less perceptive. This biomimetic structure contributes to the improvements in ST-PSCs performance and visual appearance simultaneously. Consequently, a record high figure-of-merit for ST-PSC, defined as the product of power conversion efficiency and the average visible transmittance, is achieved. Meanwhile, the optical appearance is converted to a desired near-neutral color after introducing the MEIS. The investigation of ST-PSCs with long-term stability is implemented via engineering blend ratio of halides. The modified device exhibited appealing tolerance against moisture and solar irradiation. This work reveals an in-depth understanding of light trapping along with modifying the visual appearance of solar cells.
研究领域:
材料科学
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能源技术
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光学工程
✓ 已验证
产品关联
DOI
Materials Today Energy
·
2021
·
IF 7.311
Yifeng Yao,Shiqi Li,Huixia Xu,Zhixiang Gao,Jingkun Ren,Yanxia Cui,Linfeng Cai,Furong Zhu,Yuying Hao
Realization of efficient charge extraction at the cathode and anode interfaces is still one of the challenges for improving the power conversion efficiency (PCE) of the semitransparent perovskite solar cells (PSCs). In this work, we report our effort to enhance the PCE of semitransparent PSCs by incorporating a pair of an energetically favorable cathode buffer layer (CBL) and a hole-transporting layer (HTL). The effects of different CBLs, e.g., bathophenanthroline, bathocuproine, and perylene diimide, on charge extraction efficiency and PCE of the semitransparent PSCs are analyzed. Scanning electron microscopy reveals that UV-plasma-treated poly(bis(4-phenyl) (2,4,6-trimethylphenyl) amine) (PTAA) HTL surface favors the growth of a uniform and dense functional CH 3 NH 3 (I 0.75 Br 0.15 ) 3 perovskite layer across the substrate, with a low defect density for suppressing charge recombination loss. An average PCE of 13.53% and 9.92% was obtained with combination of a bathocuproine CBL and a PTAA HTL measured from the indium tin oxide (ITO) side and Ag side, respectively. Semitransparent PSCs possess an encouraging large average open-circuit voltage of 1.13 V, and an average transparency of 21%. Achieving an efficient charge collection and retaining a high built-in potential across the CH 3 NH 3 (I 0.75 Br 0.15 ) 3 photoactive layer via interfacial modifications are a prerequisite for attaining high-performance semitransparent PSCs.
研究领域:
材料科学
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能源技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Physical Chemistry C
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2021
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IF 4.126
Lingling Zheng,Ming Li,Shijie Dai,Yinghao Wu,Yuhang Cai,Xinyu Zhu,Shaokun Ma,Daqin Yun,Jian-Feng Li
In recent years, semitransparent organic solar cells (ST-OSCs) receive more and more attention due to their applications in building-integrated photovoltaics. There is a complicated trade-off between the average visible transmittance (AVT) and the power conversion efficiency (PCE), which determine the overall light utilization efficiency (LUE) of ST-OSCs. In this work, the ST-OSCs are fabricated using ZnO as the buffer layer between an ultrathin metal electrode and an active layer of PM6:Y7. Moreover, Ag nanowires (Ag NWs) are embedded into ZnO film to increase the conductivity without serious loss of AVT. The LUE improves to 2.63% with a PCE of 13.76% and an AVT of 19.09% for ST-OSC with modification. Significant enhancement of the short-circuit current density and electrical property of the device is attributed to the excellent conductivity, the scattering effect, and the surface plasmon resonance of Ag NWs. This study provides an efficient strategy to fabricate high-performance ST-OSCs with high LUE.
研究领域:
材料科学
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能源技术
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光电技术
✓ 已验证
DOI
高影响因子
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
·
2015
·Vol. 17
·期 37
·23732-23740
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IF 4.493
Wenjuan Yu,Xu Jia,Mengnan Yao,Linghui Zhu,Yongbing Long,Liang Shen
Herein, we demonstrate a kind of high performance semi-transparent polymer solar cell (STPSC) with a significantly improved color rendering index (CRI) and power conversion efficiency (PCE) by introducing one-dimensional photonic crystals (1DPCs), which are intentionally designed to strongly reflect the pristine weak absorbed light to flatten the concavo-convex transmittance spectrum of STPSCs. The transmitted light from the STPSC device with 4 pairs of 1DPCs under AM 1.5G illumination shows extraordinary color rendering capacities, which contribute an increased CRI from 79 to 91, combined with an enhanced PCE from 4.14% to 5.01% compared to devices without 1DPCs. The simultaneously improved optical and electrical performance suggests that STPSCs can provide a unique feature, which is suitable for building integrated photovoltaic applications.
研究领域:
材料科学
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光学工程
·
可再生能源
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Energy Technology
·
2023
·Vol. 11
·期 11
·2300611
·
IF 3.8
Yajie Zhao,Rui Ge,Jieyuan Zheng,Lirong Chen,Xingru Wang,Yang Zheng,Liuwen Zhong,Yanqing Zhu,Xueqing Xu,Gang Xu,Xiudi Xiao
Among all-inorganic perovskites, CsPbIBr 2 has become a potential candidate in semitransparent perovskite solar cells (ST-PSCs) due to its excellent thermal stability and suitable bandgap. Herein, by optimizing the ambient temperature in an N 2 -filled glovebox, the growth process of CsPbIBr 2 crystals is regulated to avoid the generation of pinholes and improve the photoelectric conversion capacity of perovskite cells. When the ambient temperature is around 25 °C, the champion power conversion efficiency (PCE) of 10.82% with opaque n–i–p structure is achieved. Based on MoO x /Ag/MoO x (20/12/20 nm) multilayer top electrode, the ST-PSC device achieves a maximum PCE of 7.06% at the fluorine-doped tin oxide side under the simulated 1 sun illumination condition and a PCE of 23.96% at MoO x /Ag/MoO x electrode side under the intensity of 1000 lux (≈350 μW cm −2 ) provided by a white light-emitting diode lamp, along with an average visible transmittance of 29.25%. The resulting perovskite solar cell is the first bifacial inorganic ST-PSC that could be used under both sunlight and indoor light, which is an important step toward all-day power generation of inorganic ST-PSCs and building-integrated photovoltaics.
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
Journal of Materials Chemistry C
·
2021
·Vol. 9
·期 42
·15056-15064
·
IF 7.393
Yuan Yu,Meijia Shang,Tao Wang,Qian Zhou,Yuying Hao,Zhiyong Pang,Deliang Cui,Gang Lian,Xijian Zhang,Shenghao Han
Recently, the demand for semi-transparent perovskite solar cells (SPSCs) to serve as semitransparent windows for urban building and automobile applications has grown. However, it is challenging to prepare high-quality ultra-thin perovskite films, significantly restricting the development of SPSCs. In this paper, we report an all-round performance improvement of ultra-thin perovskite films and SPSCs prepared by using a thermal-pressed recrystallizing (TPR) method. The average grain size of perovskite films increased from ∼340 nm to ∼1.64 μm, after the TPR treatment, along with a dramatic decrease in the surface root mean square (RMS) roughness from ∼14.9 nm to ∼1.04 nm. The SPSCs fabricated by the TPR method showed a significant improvement in all-round performance, such as open-circuit voltage, short-circuit current, fill factor, power conversion efficiency, transmittance and stability. The average power conversion efficiency showed a significant increase of up to 32.8% after TPR treatment, indicating the potential for the development of high performance semitransparent photovoltaic windows.
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
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2018
·
IF 3.057
Huilu Guo,Xiaojian Mao,Jian Zhang,Run Tian,Shiwei Wang
Attempts have been made to manufacture AlON transparent ceramics at low temperature using a new sintering aid system, Y 2 O 3 -La 2 O 3 -MnO. The sintering behaviors, including relative density and microstructure evolution of AlON ceramics doped with Y 2 O 3 -La 2 O 3 , MnO alone, and Y 2 O 3 -La 2 O 3 -MnO were compared. It was found that both the relative densities and grain sizes of samples doped with Y 2 O 3 -La 2 O 3 -MnO were much higher and larger than those of samples doped with Y 2 O 3 -La 2 O 3 or MnO alone, respectively. A liquid phase containing Al, O, N, Mn, and La formed at high temperature and played an important role on both eliminating pores and promoting grain growth of the sintered AlON bodies. Finally, translucent AlON ceramics were obtained through pressureless sintering at 1830 °C for 1 h, ~100 °C lower than those with conventional sintering aid Y 2 O 3 -La 2 O 3 . The ceramics doped with MnO showed green emission at 534 nm, under 445 nm excitation. We believe Y 2 O 3 -La 2 O 3 -MnO is a promising additive for the preparation of AlON transparent ceramic at lower temperature.
研究领域:
材料科学
·
陶瓷工程
·
光学材料
✓ 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）