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学者姓名：吴炯桦
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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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二维钙钛矿材料由于其可调节的带隙、高吸收系数和增强的稳定性，被认为是室内光伏(IPV)应用的理想候选材料。然而，实现高质量的二维钙钛矿制备以及克服低载流子迁移率仍是二维钙钛矿面临的关键挑战，限制了其整体性能。在本研究中，我们使用Dion-Jacobson(DJ)相的EDA(FA)4Pb5I16(n=5)构建了一种二维钙钛矿光吸收层，并引入了碘化丁胺(BAI)进行界面修饰，从而形成了一种新型DJ/Ruddlesden-Popper(RP)双二维钙钛矿异质结构。
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| GB/T 7714 | 吴炯桦 . 高效稳定DJ/RP型2D钙钛矿太阳能电池在室内光伏中的应用 [C] //第三届全国太阳能电池材料与器件发展研讨会论文集 . 2025 : 121-122 . |
| MLA | 吴炯桦 . "高效稳定DJ/RP型2D钙钛矿太阳能电池在室内光伏中的应用" 第三届全国太阳能电池材料与器件发展研讨会论文集 . (2025) : 121-122 . |
| APA | 吴炯桦 . 高效稳定DJ/RP型2D钙钛矿太阳能电池在室内光伏中的应用 第三届全国太阳能电池材料与器件发展研讨会论文集 . (2025) : 121-122 . |
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Encapsulation is a critical strategy for mitigating the instability of perovskites, which remains the primary challenge for their commercialization. Traditional encapsulation adhesives, such as ethylene vinyl acetate and epoxy resin, are constrained by high-temperature processes and potential chemical reactions that can impair the efficiency of perovskite devices. The use of vacuum silicone grease, primarily composed of polydimethylsiloxane (PDMS), not only shields the perovskite devices from moisture and oxygen but also significantly enhances their power conversion efficiency from 23.91% to 25.34%. Further investigations reveal that this improvement can be attributed to the formation of coordination bonds between the oxygen atoms in PDMS and lead within the perovskite structure. This mechanism boosts efficiency and inhibits the formation of Pb0 defects, significantly contributing to efficiency loss and instability. A ten-fold increase in stability is observed at approximate to 90% humidity, underscoring its potential as a low-temperature, non-damaging, and effective encapsulation method for enhancing the stability and performance of perovskite solar cells.
Keyword ：
defect suppression defect suppression encapsulation encapsulation PDMS PDMS perovskite solar cells perovskite solar cells stability stability
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| GB/T 7714 | Wu, Jionghua , Lan, Junxing , Wang, Renjie et al. Low-Temperature Encapsulation with Silicone Grease Enhances Efficiency and Stability of Perovskite Solar Cells via Pb0 Defect Passivation [J]. | ADVANCED FUNCTIONAL MATERIALS , 2025 . |
| MLA | Wu, Jionghua et al. "Low-Temperature Encapsulation with Silicone Grease Enhances Efficiency and Stability of Perovskite Solar Cells via Pb0 Defect Passivation" . | ADVANCED FUNCTIONAL MATERIALS (2025) . |
| APA | Wu, Jionghua , Lan, Junxing , Wang, Renjie , Cheng, Can , Wang, Weihuang , Deng, Hui et al. Low-Temperature Encapsulation with Silicone Grease Enhances Efficiency and Stability of Perovskite Solar Cells via Pb0 Defect Passivation . | ADVANCED FUNCTIONAL MATERIALS , 2025 . |
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Moisture enabled electric generation (MEG) is an innovative green energy technology that converts the chemical potential energy of atmospheric water vapor into electricity. Here, we report a novel molecular-level zero-dimensional (0D) perovskite-based MEG device that efficiently harvests ambient moisture to generate electric power, which makes perovskite a new kind of potential MEG. The 0D perovskite, DAP(2)PbI(6), (where DAP is 1,3-bis(ammonium)-2-hydroxypropane diiodide.) features a unique hydrogen-bonding network formed between its ammonium (-NH3+) and hydroxyl (-OH) groups, imparting water stability and remarkable hydrophilicity. Such robust interactions facilitate water adsorption and the subsequent release of hydrogen ions under humid conditions. These protonic species establish an ion gradient, driving a directional current via the ion-gradient diffusion-induced voltage. We demonstrated a maximum volumetric power density of 45 mWcm-3-substantially exceeding previously reported values for protein- or carbon-based MEG. Additionally, SEM and AFM analyses confirm DAP(2)PbI(6) is stable upon moisture exposure, while temperature-dependent impedance spectroscopy and theoretical calculations reveal that proton diffusion is the primary mechanism for the observed moisture-driven electricity. These findings underscore the promise of hydrophilic 0D perovskite materials for high-efficiency MEG and pave the way for next-generation sustainable power applications.
Keyword ：
High performance High performance Ionic transport Ionic transport Moisture enabled electric generation Moisture enabled electric generation Perovskite Perovskite Zero-dimensional halide structures Zero-dimensional halide structures
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| GB/T 7714 | Xu, Yuehao , Wu, Jionghua , Chen, Zhaojie et al. High-Efficiency Moisture-Driven Electric Generator Enabled by Hydrophilic 0D Perovskite† [J]. | CHINESE JOURNAL OF CHEMISTRY , 2025 , 43 (19) : 2519-2524 . |
| MLA | Xu, Yuehao et al. "High-Efficiency Moisture-Driven Electric Generator Enabled by Hydrophilic 0D Perovskite†" . | CHINESE JOURNAL OF CHEMISTRY 43 . 19 (2025) : 2519-2524 . |
| APA | Xu, Yuehao , Wu, Jionghua , Chen, Zhaojie , Xie, Wenchao , Meng, Xin , Sun, Xiaohui et al. High-Efficiency Moisture-Driven Electric Generator Enabled by Hydrophilic 0D Perovskite† . | CHINESE JOURNAL OF CHEMISTRY , 2025 , 43 (19) , 2519-2524 . |
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Zinc oxide (ZnO) is used as an electron transport layer (ETL) in inverted organic solar cells (IOSCs) owing to its excellent performance, such as good light transmission and high conductivity, while its surface defects and photocatalytic properties limit the development of IOSCs. Herein, we apply an antioxidant, syringic acid (SA), to modify the surface of ZnO film, which observably improve the efficiency and stability of IOSCs. It is found that SA can effectively passivate the surface defects of ZnO and optimize surface morphology, as well as reduce the work function (WF) of ZnO resulting in an improvement of the charge transport of IOSCs. The power conversion efficiency (PCE) of PM6:Y6-based IOSCs is increased from 16.19 % to 18.18 %, it is the highest PCE values of the single-junction IOSCs based on PM6:Y6 system as reported. Meanwhile, the photostability of the device is markedly improved due to SA could suppress the photocatalytic of ZnO under the ultraviolet aging.
Keyword ：
Photostability' Inverted organic solar cells Photostability' Inverted organic solar cells Surface defects Surface defects Syringic acid Syringic acid Zinc oxide Zinc oxide
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| GB/T 7714 | Zheng, Qiao , Guo, Zhaohuang , Zhuang, Jinyong et al. 18.18 % Efficiency of organic solar cells based on PM6:Y6 with Syringic acid modified ZnO [J]. | SURFACES AND INTERFACES , 2025 , 65 . |
| MLA | Zheng, Qiao et al. "18.18 % Efficiency of organic solar cells based on PM6:Y6 with Syringic acid modified ZnO" . | SURFACES AND INTERFACES 65 (2025) . |
| APA | Zheng, Qiao , Guo, Zhaohuang , Zhuang, Jinyong , Zhou, Ziqi , Wu, Jionghua , Deng, Hui et al. 18.18 % Efficiency of organic solar cells based on PM6:Y6 with Syringic acid modified ZnO . | SURFACES AND INTERFACES , 2025 , 65 . |
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Antimony sulfide (Sb2S3) thin film have a suitable band gap (1.73 eV) and high absorption coefficient, indicating potential prospects in indoor photovoltaics. The open-circuit voltage (VOC) attenuation under indoor weak light limits the performance and application, which is affected by the heterojunction interface quality. Hence, we propose a hole transport layer free Sb2S3 indoor photovoltaic cell using Li-doped TiO2 as the electron transport layer to overcome weak-light VOC loss. The Li-doped TiO2 films prepared by spray pyrolysis LiCl additive precursor reveal higher surface potentials, enhancing electron collections. The doped interface also promoted subsequent grain growth of Sb2S3 thin film. The champion device, configured as FTO/TiO2:Li/Sb2S3/Au, achieves an efficiency of 6.12% with an optimal Li doping ratio of 8% in the TiO2 layer. The Li introduction at the junction interface suppresses the photocarrier recombinations under indoor light, thus improving device performance. The indoor power conversion efficiency of the Li-TiO2 based Sb2S3 device reaches 12.7% under the irradiation of 1000-lux LED, showing 48% improvement compared with the undoped device. The Li-doped TiO2/Sb2S3 photovoltaic device demonstrates significant advantages, particularly in cold and monochromatic light conditions, opening new prospects for indoor application.
Keyword ：
conversion efficiency conversion efficiency indoor photovoltaics indoor photovoltaics Li-doped TiO2 Li-doped TiO2 Sb2S3 Sb2S3 VOC improvement VOC improvement
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| GB/T 7714 | Wu, Kefei , Deng, Hui , Feng, Xinxin et al. Suppressing weak-light voltage attenuation in Sb2S3 indoor photovoltaics using Li-doped TiO2 layer [J]. | NANO RESEARCH , 2025 , 18 (10) . |
| MLA | Wu, Kefei et al. "Suppressing weak-light voltage attenuation in Sb2S3 indoor photovoltaics using Li-doped TiO2 layer" . | NANO RESEARCH 18 . 10 (2025) . |
| APA | Wu, Kefei , Deng, Hui , Feng, Xinxin , Hong, Jinwei , Wang, Guidong , Ishaq, Muhammad et al. Suppressing weak-light voltage attenuation in Sb2S3 indoor photovoltaics using Li-doped TiO2 layer . | NANO RESEARCH , 2025 , 18 (10) . |
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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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Photocatalytic N-2 fixation is a green and sustainable pathway for the synthesis of ammonia. However, its efficiency is considerably restricted by the energy-intensive activation of N-2 molecules. Herein, a series of MOF-74(Co) with varying contents of coordinatively unsaturated Co sites were synthesized through the thermal treatment at different temperatures (T = 100, 150, 200, 250 degrees C). These photocatalysts were used for the photocatalytic fixation of N-2 in the absence of a sacrificial agent. The experimental results and theoretical computations indicate that the amount of coordinatively unsaturated Co sites increases as the temperature elevates by the removal of coordinated H2O from MOF-74(Co). These Co sites can function as active sites to promote chemisorption and activation of N-2 molecules. The sample MOF-74(Co)-200 exhibits the highest NH4+ production rate of 84 mu molg(-1)h(-1), which is six times higher than that of the pristine MOF-74(Co) (13.9 mu molg(-1)h(-1)). The enhanced performance can be ascribed to the abundance of active sites and the optimal mobility of the photogenerated charges. Finally, a mechanism is proposed for the photocatalytic N-2 activation at the molecular level.
Keyword ：
coordinatively unsaturated Co sites coordinatively unsaturated Co sites MOF-74(Co) MOF-74(Co) N-2 activation N-2 activation photocatalysis photocatalysis thermal treatment thermal treatment
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| GB/T 7714 | Ye, Binghua , Liu, Cheng , Chen, Yueling et al. Regulating the Unsaturated Co Sites on MOF-74(Co) for Enhancing Photocatalytic N2 to NH3 Conversion [J]. | ACS SUSTAINABLE CHEMISTRY & ENGINEERING , 2025 , 13 (9) : 3588-3599 . |
| MLA | Ye, Binghua et al. "Regulating the Unsaturated Co Sites on MOF-74(Co) for Enhancing Photocatalytic N2 to NH3 Conversion" . | ACS SUSTAINABLE CHEMISTRY & ENGINEERING 13 . 9 (2025) : 3588-3599 . |
| APA | Ye, Binghua , Liu, Cheng , Chen, Yueling , Chen, Qi , Jing, Kaiqiang , Yu, Jimmy C. et al. Regulating the Unsaturated Co Sites on MOF-74(Co) for Enhancing Photocatalytic N2 to NH3 Conversion . | ACS SUSTAINABLE CHEMISTRY & ENGINEERING , 2025 , 13 (9) , 3588-3599 . |
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Defect engineering and single atom incorporation can provide more active sites to modulate the surface electronic structure of a catalyst and to activate reactant molecules. Herein, a series of Ru-anchored DUT-67(Zr) MOFs with explicit defect sites have been prepared for photocatalytic nitrogen reduction. It is characterized that Ru/DUT-67(Zr) possesses uniformly dispersed Ru single atoms and unsaturated Zr. Typically, 1.0 %Ru/DUT-67 (Zr) shows best performance with a NH4+ yield of 61.1 mu mol center dot g-1 center dot h-1, which is approximately 6-folds higher than that of defective DUT-67(Zr) without Ru single atom (DUT-L), while pristine DUT-67(Zr) exhibits a lack of the photocatalytic N2 reduction activity. The observed enhancement can be attributed to the introduction of Ru and unsaturated Zr sites induced by irradiation. Both of them can work together act as active centers to absorb and activate dinitrogen molecule. Furthermore, benefited from the electronic channel (Ru-S) between Ru and DUT-67 (Zr), the separation of photogenerated carriers has been greatly improved, contributing to the collaborative conversion of activated N2 to NH3. This study provides a new insight for designing a dual active sites photo- catalyst with unsaturated coordinated sites and the single atoms by the coordinately interaction of functionalized linker.
Keyword ：
Nitrogen activation Nitrogen activation Ru/DUT-67 MOF Ru/DUT-67 MOF Single atoms Single atoms Synergistic effect Synergistic effect
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| GB/T 7714 | Qiu, Jinjing , Chen, Qi , Liu, Cheng et al. Ru single atom modified DUT-67(Zr) with unsaturated Zr for high-efficiency photocatalytic nitrogen reduction [J]. | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2025 , 366 . |
| MLA | Qiu, Jinjing et al. "Ru single atom modified DUT-67(Zr) with unsaturated Zr for high-efficiency photocatalytic nitrogen reduction" . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY 366 (2025) . |
| APA | Qiu, Jinjing , Chen, Qi , Liu, Cheng , Chen, Yueling , Wu, Jionghua , Jing, Kaiqiang et al. Ru single atom modified DUT-67(Zr) with unsaturated Zr for high-efficiency photocatalytic nitrogen reduction . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2025 , 366 . |
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