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学者姓名：吴炯桦
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Abstract ：
制备了基于不同碘化铅浓度的反式钙钛矿太阳能电池,并用SEM、XRD、紫外-可见吸收谱、空间电荷限制电流曲线、瞬态光电压谱进行了表征.研究发现,碘化铅浓度对电池性能有很大影响,即随着碘化铅浓度的增加,短路电流略有降低,而开路电压和填充因子上升较大.同时,较高的PbI2浓度可有效减弱迟滞现象.通过结合光学表征与电学表征,进一步发现过量的PbI2可以在钙钛矿晶界处钝化缺陷,降低薄膜缺陷密度,从而提高器件的开路电压和填充因子.最终,在优化的摩尔量下,采用ITO/MeO-2PACz/PVSK/PC61BM/BCP/Ag的反式结构,制备的钙钛矿太阳能电池表现出卓越的功率转换效率(PCE),达到了22.90%.
Keyword ：
反式钙钛矿太阳能电池 反式钙钛矿太阳能电池 碘化铅 碘化铅 缺陷钝化 缺陷钝化
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| GB/T 7714 | 黄少彪 , 吴炯桦 . 碘化铅含量对反式钙钛矿太阳能电池性能的影响 [J]. | 光电子技术 , 2025 , 45 (1) : 45-51 . |
| MLA | 黄少彪 等. "碘化铅含量对反式钙钛矿太阳能电池性能的影响" . | 光电子技术 45 . 1 (2025) : 45-51 . |
| APA | 黄少彪 , 吴炯桦 . 碘化铅含量对反式钙钛矿太阳能电池性能的影响 . | 光电子技术 , 2025 , 45 (1) , 45-51 . |
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提出了一种引入苯乙胺硫氰酸盐作为拟卤化物功能添加剂优化钙钛矿层埋底界面,从而制备高性能钙钛矿太阳能电池的新策略.通过在二氧化锡层和钙钛矿层界面处加入微量苯乙胺硫氰酸盐,利用其阴阳离子的特性对薄膜生长进行调控、对界面缺陷进行钝化,从而提升钙钛矿晶体质量,降低钙钛矿层埋底界面的缺陷密度.优化后的钙钛矿薄膜均匀致密,制备的钙钛矿太阳能电池性能优异,实现了22.83%的功率转换效率且几乎无迟滞现象.
Keyword ：
埋底界面 埋底界面 拟卤化物 拟卤化物 界面钝化 界面钝化 钙钛矿太阳能电池 钙钛矿太阳能电池
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| GB/T 7714 | 杭陈旺 , 吴炯桦 . 拟卤化物添加剂优化的高效钙钛矿太阳能电池 [J]. | 光电子技术 , 2025 , 45 (1) : 28-32 . |
| MLA | 杭陈旺 等. "拟卤化物添加剂优化的高效钙钛矿太阳能电池" . | 光电子技术 45 . 1 (2025) : 28-32 . |
| APA | 杭陈旺 , 吴炯桦 . 拟卤化物添加剂优化的高效钙钛矿太阳能电池 . | 光电子技术 , 2025 , 45 (1) , 28-32 . |
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The construction of metal–organic frameworks that possesses the tunable metal active sites and synergistic effect for the reactant activation is an attractive strategy for the optimization of photocatalytic performance. Herein, a series of MIL-88A(Fe1-xCux) were synthesized for photocatalytic nitrogen reduction reaction (NRR). It was characterized that the Fe2+ and oxygen vacancies were produced in MIL-88A(Fe) due to the partly reduction of ligand fumaric acid in synthesis process. The substitution of Fe3+ with Cu2+ induces charge imbalance and lattice distortion, further increasing the content of Fe2+ and oxygen vacancies. The optimal sample MIL-88A(Fe0.95Cu0.05) (CMA-5 %) exhibits the highest nitrogen fixation performance of 68.6 μmol·g−1·h−1, which is 8 times higher than that of the pristine material. It is attributable to the synergistic effect of the abundant Fe2+ and oxygen vacancies as active sites to promote N2 coordination and photogenerated carrier separation, resulting in the efficient conversion of activated N2 to NH3. Furthermore, the in-situ Diffuse Reflectance Infrared Fourier Transform Spectroscopy provide clear evidence of the behavior of the N2 adsorption and activation on the catalyst. Finally, we propose a potential mechanism at molecular level regarding the relationship between the synergistic effect and the nitrogen fixation activity. © 2025 Elsevier Inc.
Keyword ：
Active sites Active sites Coordination activation Coordination activation Defect manipulation Defect manipulation MIL-88A(Fe1-xCux) MIL-88A(Fe1-xCux) Photocatalytic N2 fixation Photocatalytic N2 fixation
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| GB/T 7714 | Liu, R. , Chen, Q. , Qiu, J. et al. Cu mediated defect manipulation in MIL-88A(Fe) for boosting photocatalytic N2 fixation [J]. | Journal of Colloid and Interface Science , 2025 , 692 . |
| MLA | Liu, R. et al. "Cu mediated defect manipulation in MIL-88A(Fe) for boosting photocatalytic N2 fixation" . | Journal of Colloid and Interface Science 692 (2025) . |
| APA | Liu, R. , Chen, Q. , Qiu, J. , Liu, C. , Wu, J. , Yu, J.C. et al. Cu mediated defect manipulation in MIL-88A(Fe) for boosting photocatalytic N2 fixation . | Journal of Colloid and Interface Science , 2025 , 692 . |
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2D perovskite materials are ideal candidates for indoor photovoltaic (IPV) applications due to their tunable bandgap, high absorption coefficients, and enhanced stability. However, attaining uniform crystallization and overcoming low carrier mobility remain key challenges for 2D perovskites, limiting their overall performance. In this study, a 2D perovskite light-absorbing layer is constructed using a Dion-Jacobson (DJ)-phase EDA(FA)(4)Pb5I16 (n = 5) and introduced butylammonium iodide (BAI) for interface modification, thereby creating a novel DJ/Ruddlesden-Popper (RP) dual 2D perovskite heterostructure. By adjusting the thickness of the BAI-based perovskite layer, the relationship between interfacial defect states and carrier mobility is investigated under varying indoor light intensities. The results indicate that, by achieving a balance between interfacial defect passivation and carrier transport, the optimized 2D perovskite device reaches a power conversion efficiency (PCE) of 30.30% and an open-circuit voltage (V-OC) of 936 mV under 1000 lux (3000 K LED). 2D-DJ/RP perovskite IPV exhibits a twentyfold increase in T-90 lifetime compared to 3D perovskite devices. It is the first time to systematically study 2D perovskites in IPV applications, demonstrating that rationally designed and optimized 2D perovskites hold significant potential for fabricating high-performance indoor PSCs.
Keyword ：
2D perovskite solar cells 2D perovskite solar cells carrier transport carrier transport defect passivation defect passivation dual-phase 2D perovskite heterostructures dual-phase 2D perovskite heterostructures indoor photovoltaic indoor photovoltaic
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| GB/T 7714 | Wang, Renjie , Wu, Jionghua , Zheng, Qiao et al. Stable and Efficient Indoor Photovoltaics Through Novel Dual-Phase 2D Perovskite Heterostructures [J]. | ADVANCED MATERIALS , 2025 , 37 (18) . |
| MLA | Wang, Renjie et al. "Stable and Efficient Indoor Photovoltaics Through Novel Dual-Phase 2D Perovskite Heterostructures" . | ADVANCED MATERIALS 37 . 18 (2025) . |
| APA | Wang, Renjie , Wu, Jionghua , Zheng, Qiao , Deng, Hui , Wang, Weihuang , Chen, Jing et al. Stable and Efficient Indoor Photovoltaics Through Novel Dual-Phase 2D Perovskite Heterostructures . | ADVANCED MATERIALS , 2025 , 37 (18) . |
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Antimony sulfide (Sb2S3) solar cells fabricated via hydrothermal deposition have attracted widespread attention. The annealing crystallization process plays a crucial role in achieving optimal crystallinity in hydrothermal Sb2S3 thin films. Nevertheless, incomplete crystallization and the loss of sulfur at high-temperature contribute to defect recombination, constraining device performance. Herein, a two-step rapid thermal processing (RTP) annealing strategy is proposed to improve the crystal quality and efficiency of Sb2S3 solar cells. The annealing process in Ar protection with atmospheric pressure can suppress S loss caused by saturated vapor pressure. The two-step RTP annealing with the 330°C low-temperature and 370°C high-temperature process ensures high crystallinity and vertical orientations of Sb2S3 thin films, accompanied by a reduction in defect concentration from 1.01 × 1012 to 5.97 × 1011 cm−3. The Sb2S3 solar cell achieves an efficiency of 8.20% with an enhanced open circuit voltage (VOC) of 784 mV. The build-in voltage (Vbi) of 1.17 V and irradiation-dependent ideal factor (n) of 1.48 demonstrate enhanced heterojunction quality and suppressed defect recombination in the devices. The presented two-step annealing strategy and physical mechanism study will open new prospects for high-performance Sb2S3 solar cells. © Science China Press 2024.
Keyword ：
defect passivation defect passivation hydrothermal hydrothermal Sb2S3 solar cells Sb2S3 solar cells two-step annealing two-step annealing
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| GB/T 7714 | Deng, H. , Feng, X. , Zhu, Q. et al. 8.2%-Efficiency hydrothermal Sb2S3 thin film solar cells by two-step RTP annealing strategy; [两步快速热处理退火策略实现8.2%效率的水热法硫化锑薄膜太阳能电池] [J]. | Science China Materials , 2024 , 67 (11) : 3666-3674 . |
| MLA | Deng, H. et al. "8.2%-Efficiency hydrothermal Sb2S3 thin film solar cells by two-step RTP annealing strategy; [两步快速热处理退火策略实现8.2%效率的水热法硫化锑薄膜太阳能电池]" . | Science China Materials 67 . 11 (2024) : 3666-3674 . |
| APA | Deng, H. , Feng, X. , Zhu, Q. , Liu, Y. , Wang, G. , Zhang, C. et al. 8.2%-Efficiency hydrothermal Sb2S3 thin film solar cells by two-step RTP annealing strategy; [两步快速热处理退火策略实现8.2%效率的水热法硫化锑薄膜太阳能电池] . | Science China Materials , 2024 , 67 (11) , 3666-3674 . |
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This work develops a series of bimetallic MIL-68(InFe) MOF nanorods (NM(In1-xFex)) mimicking the nitrogenase for biomimetic photocatalytic N2 fixation. The partial substitution of In3+ with Fe3+ leads to the electron redistribution from In3+ to Fe3+, generating electron-poor In3+ (In(3+δ)+) sites and electron-rich Fe3+ (Fe(3–δ)+) sites as an electron acceptor–donor combination to promote the N2 activation by a π back-donation mechanism. The smaller size of the nanorods further provides more accessible active sites than the bulk counterpart. In cooperation with the H+ released from the H2O, the activated N2 molecules were reduced by photogenerated electrons to give NH3. The optimal sample NM(In0.90Fe0.10) exhibited the highest NH4+ production rate of 30.8 µmol·h−1·g−1 without any sacrificial agent, attributed to the presence of abundant In/Fe bimetallic sites for N2 activation and enhanced charge mobility. This work provides new insights into rational design for artificial N2 fixation systems by mimicking natural nitrogenase. © 2024 Elsevier B.V.
Keyword ：
Dual-metal sites Dual-metal sites MOFs MOFs N2 activation N2 activation Photocatalysis Photocatalysis
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| GB/T 7714 | Liu, C. , Chen, M. , Chen, Y. et al. Bimetallic MIL-68(InFe) MOF nanorods for biomimetic photocatalytic N2 fixation [J]. | Chemical Engineering Journal , 2024 , 498 . |
| MLA | Liu, C. et al. "Bimetallic MIL-68(InFe) MOF nanorods for biomimetic photocatalytic N2 fixation" . | Chemical Engineering Journal 498 (2024) . |
| APA | Liu, C. , Chen, M. , Chen, Y. , Chen, Q. , Wu, J. , Lin, S. et al. Bimetallic MIL-68(InFe) MOF nanorods for biomimetic photocatalytic N2 fixation . | Chemical Engineering Journal , 2024 , 498 . |
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Abstract ：
采用偏置电压调控钙钛矿太阳电池离子迁移，抑制钙钛矿离子在界面的堆积、填充太阳电池缺陷，恢复老化太阳电池的性能。在对老化太阳电池引入正向偏置电压修复手段后，太阳电池光电转换效率从老化后的17.8%恢复到21.5%；在100 h的最大功率点跟踪中引入偏置电压修复手段后，获得3.1%总能量增益。通过自主搭建的集成表征环境，原位实时测量偏压修复太阳电池前后太阳电池电学性能和光学特性的变化规律，建立偏压调控钙钛矿离子迁移的物理模型，探究偏置电压修复太阳电池的背后机理。结果表明，该修复策略可通过调控离子迁移，钝化缺陷、优化载流子提取和输运、进而修复太阳电池。
Keyword ：
修复 修复 偏置电压 偏置电压 离子迁移 离子迁移 钙钛矿太阳电池 钙钛矿太阳电池
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| GB/T 7714 | 郑志江 , 王仁杰 , 黄少彪 et al. 正向偏置电压修复钙钛矿太阳电池的研究 [J]. | 太阳能学报 , 2024 , 45 (04) : 59-64 . |
| MLA | 郑志江 et al. "正向偏置电压修复钙钛矿太阳电池的研究" . | 太阳能学报 45 . 04 (2024) : 59-64 . |
| APA | 郑志江 , 王仁杰 , 黄少彪 , 杭陈旺 , 吴炯桦 , 程树英 . 正向偏置电压修复钙钛矿太阳电池的研究 . | 太阳能学报 , 2024 , 45 (04) , 59-64 . |
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Antimony sulfide (Sb2S3) photodetectors (PDs) possess extensive application prospects. Efficient carrier transport of a PD significantly affects the detectivity and response speed. Herein, we propose an all-inorganic self-powered Sb2S3 PD based on vertical TiO2 nanorods (NRs). The spray-coated 15-nm TiO2 thin film as a seed layer ensures the growth of compact vertical TiO2 nanorod arrays by the hydrothermal method. One-dimensional TiO2 nanorods facilitate photocarrier separation and transport to enhance device performance. Ultimately, the Sb2S3 PD achieves a responsivity of 0.29 A/W, a specific detectivity of 3.37 x 1012 Jones, and a response time of 7.8 mu s, showing great potential in commercial applications. (c) 2024 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.
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| GB/T 7714 | Kang, Yubin , Deng, Hui , Wu, Kefei et al. Self-powered Sb2S3 photodetectors with efficient carrier transport enabled by compact vertical TiO2 nanorods [J]. | OPTICS LETTERS , 2024 , 49 (22) : 6533-6536 . |
| MLA | Kang, Yubin et al. "Self-powered Sb2S3 photodetectors with efficient carrier transport enabled by compact vertical TiO2 nanorods" . | OPTICS LETTERS 49 . 22 (2024) : 6533-6536 . |
| APA | Kang, Yubin , Deng, Hui , Wu, Kefei , Wang, Guidong , Hong, Jinwei , Wang, Weihuang et al. Self-powered Sb2S3 photodetectors with efficient carrier transport enabled by compact vertical TiO2 nanorods . | OPTICS LETTERS , 2024 , 49 (22) , 6533-6536 . |
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We report a simple, effective, and universal lattice reconstruction approach to improve the quality of perovskite films by using nonpolar solvents with high Gutmann donor numbers (DNs). We find that high-DN nonpolar solvents, for instance, ethyl acetate, can interact with perovskite precursors. Such a solvent can make the perovskite lattice more ordered and "harder" and promote the formation of heterostructures with low-dimensional perovskite impurities and residual solvent molecules. As a result, the lattice-reconstructed perovskite films exhibit reduced defect densities and suppressed ion migration. The resultant mixed-halide blue perovskite light-emitting diodes (PeLEDs) show greatly enhanced tolerance to high driving current densities and voltages, demonstrating high brightness, outstanding color stability and low efficiency roll-off. Our work provides a deep understanding of the interactions between nonpolar solvents and perovskites and offers useful guidelines for further development of high-power PeLEDs.
Keyword ：
color stability color stability high brightness high brightness ion migration ion migration low efficiency roll-off low efficiency roll-off mixed halide perovskite mixed halide perovskite
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| GB/T 7714 | Wu, Jionghua , Wang, Renjie , Zhang, Rui et al. Lattice reconstruction for mixed-halide blue perovskite light-emitting diodes with high brightness, outstanding color stability and low efficiency roll-off [J]. | SCIENCE CHINA-MATERIALS , 2024 , 67 (11) : 3553-3560 . |
| MLA | Wu, Jionghua et al. "Lattice reconstruction for mixed-halide blue perovskite light-emitting diodes with high brightness, outstanding color stability and low efficiency roll-off" . | SCIENCE CHINA-MATERIALS 67 . 11 (2024) : 3553-3560 . |
| APA | Wu, Jionghua , Wang, Renjie , Zhang, Rui , Portale, Giuseppe , Solano, Eduardo , Liu, Xiaoke et al. Lattice reconstruction for mixed-halide blue perovskite light-emitting diodes with high brightness, outstanding color stability and low efficiency roll-off . | SCIENCE CHINA-MATERIALS , 2024 , 67 (11) , 3553-3560 . |
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This work develops a series of bimetallic MIL-68(InFe) MOF nanorods (NM(In1-xFex)) mimicking the nitrogenase for biomimetic photocatalytic N-2 fixation. The partial substitution of In3+ with Fe3+ leads to the electron redistribution from In3+ to Fe3+, generating electron-poor In3+ (In(3+delta)+) sites and electron-rich Fe3+ (Fe(3-delta)+) sites as an electron acceptor-donor combination to promote the N-2 activation by a pi back-donation mechanism. The smaller size of the nanorods further provides more accessible active sites than the bulk counterpart. In cooperation with the H+ released from the H2O, the activated N-2 molecules were reduced by photogenerated electrons to give NH3. The optimal sample NM(In0.90Fe0.10) exhibited the highest NH4+ production rate of 30.8 mu molh(-1)g(-1) without any sacrificial agent, attributed to the presence of abundant In/Fe bimetallic sites for N-2 activation and enhanced charge mobility. This work provides new insights into rational design for artificial N-2 fixation systems by mimicking natural nitrogenase.
Keyword ：
Dual-metal sites Dual-metal sites MOFs MOFs N-2 activation N-2 activation Photocatalysis Photocatalysis
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| GB/T 7714 | Liu, Cheng , Chen, Mengning , Chen, Yueling et al. Bimetallic MIL-68(InFe) MOF nanorods for biomimetic photocatalytic N2 fixation [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 498 . |
| MLA | Liu, Cheng et al. "Bimetallic MIL-68(InFe) MOF nanorods for biomimetic photocatalytic N2 fixation" . | CHEMICAL ENGINEERING JOURNAL 498 (2024) . |
| APA | Liu, Cheng , Chen, Mengning , Chen, Yueling , Chen, Qi , Wu, Jionghua , Lin, Sen et al. Bimetallic MIL-68(InFe) MOF nanorods for biomimetic photocatalytic N2 fixation . | CHEMICAL ENGINEERING JOURNAL , 2024 , 498 . |
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