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学者姓名：邓辉
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Abstract ：
Antimony selenosulfide (Sb-2(S,Se)(3)) solar cells have achieved an efficiency of over 10.0%. However, the uncontrollable hydrothermal process makes preparing high-quality Sb-2(S,Se)(3) thin films a bottleneck for efficient Sb-2(S,Se)(3) solar cell. To address this problem, triethanolamine (TEA) additive is innovatively utilized to regulate the reaction kinetic process of Sb-2(S,Se)(3) thin films in this work. The results show that TEA chelator can realize the time-domain control of the reaction process, optimizing the Se/(S+Se) elemental distribution of Sb-2(S,Se)(3) thin film and shrinking the bandgap offset of Sb-2(S,Se)(3) thin film. Meanwhile, the (021) and (061) crystal orientation of Sb-2(S,Se)(3) thin film are enhanced and the harmful V-Se1 defects in Sb-2(S,Se)(3) solar cells are passivated. Interestingly, a uniform back surface gradient for Sb-2(S,Se)(3) thin film is formed to reduce the minority carrier recombination at the back contact, increase the photocurrent and decrease the diode current of Sb-2(S,Se)(3) solar cells. Finally, the J(sc) and FF of Sb-2(S,Se)(3) solar cells are significantly improved by 8.6% and 5.5% respectively, and the open-circuit voltage deficit of the device is reduced by 44 mV, which leads to an efficiency of 9.94% which is the highest values of Sb-2(S,Se)(3) solar cells by sodium selenosulfate system.
Keyword ：
additive additive hydrothermal deposition hydrothermal deposition reaction kinetic reaction kinetic Sb-2(S, Se)(3) solar cells Sb-2(S, Se)(3) solar cells sodium selenosulfate sodium selenosulfate
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| GB/T 7714 | Zhu, Qiqiang , Wang, Weihuang , Chen, Zhirong et al. Fabricating High-Efficiency Sb2(S,Se)3 Solar Cells by Novel Additive-Assisted Longitudinal Component Engineering [J]. | SMALL , 2024 . |
| MLA | Zhu, Qiqiang et al. "Fabricating High-Efficiency Sb2(S,Se)3 Solar Cells by Novel Additive-Assisted Longitudinal Component Engineering" . | SMALL (2024) . |
| APA | Zhu, Qiqiang , Wang, Weihuang , Chen, Zhirong , Cao, Zixiu , Wang, Weiyu , Feng, Xinxin et al. Fabricating High-Efficiency Sb2(S,Se)3 Solar Cells by Novel Additive-Assisted Longitudinal Component Engineering . | SMALL , 2024 . |
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Abstract ：
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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基于水热法的硫化锑(Sb_3S_3)太阳能电池性能具有较大前景,利用掺杂剂、硒化、硫化等方法可以实现硫化锑太阳能电池的进一步提升。退火是水热硫化锑必不可少的过程,利用这一过程实现无定形薄膜到结晶态的转变。目前,水热法制备的硫化锑仍面临着体相缺陷制约其效率的进步,而如何提升薄膜体相结晶态还是一个难题,有关这一方面的工作还需要更多的研究。我们针对薄膜的退火进行了一些研究,研究空气、手套箱热台及Ar管式炉下的退火,对比不同退火工艺下的薄膜晶态转变及晶粒的融合生长过程,进一步分析薄膜内部缺陷的影响因素。最后,基于Ar管式炉退火的Sb_2S_3获得了最好的薄膜质量,得益于其结晶态的增强及取向的调控,优化后的器件实现了PCE 7.53%,这位于硫化锑太阳能电池的第一梯队。该结果为硫化锑缺陷态的形成过程提供了研究思路,也将促进高效Sb_2S_3太阳能电池的快速发展。
Keyword ：
水热沉积 水热沉积 硫化锑薄膜 硫化锑薄膜 退火 退火
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| GB/T 7714 | 冯信信 , 邓辉 , 程树英 . 水热法Sb_2S_3太阳能电池的退火工艺研究 [C] //第十一届新型太阳能材料科学与技术学术研讨会 . 2024 . |
| MLA | 冯信信 et al. "水热法Sb_2S_3太阳能电池的退火工艺研究" 第十一届新型太阳能材料科学与技术学术研讨会 . (2024) . |
| APA | 冯信信 , 邓辉 , 程树英 . 水热法Sb_2S_3太阳能电池的退火工艺研究 第十一届新型太阳能材料科学与技术学术研讨会 . (2024) . |
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光电探测器是光通信系统中重要器件,现在以硅基为主,其蓝绿波段光的吸光系数较低,且成本高昂。硫化锑(Sb_2S_3)是一种二元化合物,且具有物相单一、无毒环保和价格低廉等,吸光吸收较大,可实现可见光探测应用于光通信领域。构建自供电的Sb_2S_3光伏探测器PDMS/glass/FTO/TiO_2/Sb_2S_3/Au。在内部实现吸收层厚度与耗尽区宽度匹配,增强电荷传输;在外部设计金字塔状的聚二甲基硅氧烷(PDMS)陷光膜,增强光吸收能力。最终,器件实现在530 nm波长下1μW/cm~2光强下响应度3.41A/W和比探测率2.84×10~(13) Jones。Sb_2S_3光伏电池可实现光电信号检测,用于实现高效的光电转换和信号的高保真传输,在可见光通信系统中具有应用前景。通过SCAPS-1D软件模拟获得了结构的最佳厚度,优化后的器件具有高性能参数,探测器获得440kHz的带宽。此外,通过设计匹配的光检测电路,成功地将由此产生的Sb_2S_3光伏型探测器集成到可见光通信系统中,实现了语音的传输。
Keyword ：
光伏探测器 光伏探测器 光通信 光通信 硫化锑 硫化锑
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| GB/T 7714 | 邓辉 , 程树英 , 夏勇 . 面向光通信应用的硫化锑光伏器件 [C] //第十一届新型太阳能材料科学与技术学术研讨会 . 2024 . |
| MLA | 邓辉 et al. "面向光通信应用的硫化锑光伏器件" 第十一届新型太阳能材料科学与技术学术研讨会 . (2024) . |
| APA | 邓辉 , 程树英 , 夏勇 . 面向光通信应用的硫化锑光伏器件 第十一届新型太阳能材料科学与技术学术研讨会 . (2024) . |
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物联网行业的发展带动室内能源消耗的提升,光伏电池在室内环境应用的需求也逐步增加。不同于传统户外太阳光照射条件,室内光源针对于人眼设计,主要波长分布在可见光范围,理论计算所得的最佳带隙为1.9 eV~([1]);同时室内环境的光照强度相较于室外弱了2-3个数量级,两者较大的光照条件差异使得老牌的诸如硅基等光伏电池在室内环境的表现并不理想。硫化锑薄膜电池的带隙为1.7 eV,与室内光伏的最佳带隙较为匹配,同时拥有较大的吸收系数(10~(5 )cm~(-1))~([2]),针对于弱光环境实现一个良好的吸光效果,是一种可应用于室内光伏的优秀材料。在常用的室内照明用台灯的照射下,基础的硫化锑薄膜电池(FTO/TiO_2/Sb_2S_3/Au)实现了1000 lux照度下超过10%的光电转换效率(AM 1.5G下5%)。对于室内光照的特定环境,再针对硫化锑薄膜电池进行带隙提升、界面改性等处理,有望实现在室内弱光环境下的更高光电转换效率~([3])。
Keyword ：
室内光伏 室内光伏 带隙匹配 带隙匹配 开压改善 开压改善 硫化锑薄膜电池 硫化锑薄膜电池
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| GB/T 7714 | 吴可非 , 邓辉 , 程树英 . 全无机硫化锑薄膜室内光伏电池 [C] //第十一届新型太阳能材料科学与技术学术研讨会 . 2024 . |
| MLA | 吴可非 et al. "全无机硫化锑薄膜室内光伏电池" 第十一届新型太阳能材料科学与技术学术研讨会 . (2024) . |
| APA | 吴可非 , 邓辉 , 程树英 . 全无机硫化锑薄膜室内光伏电池 第十一届新型太阳能材料科学与技术学术研讨会 . (2024) . |
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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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The high photovoltaic conversion efficiency (PCE) of ternary organic solar cells (OSCs) based on PTB7-Th, PC71BM and IEICO-4F material is obtained, the short-circuit current density (J SC), fill factor (FF), and open-circuit voltage is 25.90 mA cm-2, 73.20% and 0.71 V, respectively. PCE is as high as 13.53%. It is the highest PCE of ternary OSCs based on PTB7-Th, PC71BM and IEICO-4F materials for all we know. The narrow bandgap material of IEICO-4F is deposited on PTB7-Th:PC71BM bulk heterojunction (BHJ) by layer-by-layer process. We constructed the dual bandgap active layer both BHJ and pseudo-planar heterojunction (P-PHJ), it could be defined as ternary BHJ/P-PHJ of OSCs. This type of OSCs is not only the complementary bandgap material of the active layer, but also increasing the donor/acceptor (D/A) interface. The excitons generation and collection of the device are increased leading a higher J SC and FF. The semitransparent OSCs (ST-OSCs) is prepared by varying the thickness of Ag electrode and PCE can reach 9.70%, and the average visible light transmittance and light use efficiency of ST-OSCs are improved effectively.
Keyword ：
bulk heterojunction bulk heterojunction donor/acceptor interface donor/acceptor interface dual bandgap active layer dual bandgap active layer layer-by-layer layer-by-layer pseudo-planar heterojunction pseudo-planar heterojunction ternary organic solar cells ternary organic solar cells
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| GB/T 7714 | Zheng, Qiao , Zhou, Hui , Guo, Zhaohuang et al. Improved performance of ternary organic solar cells based on both bulk and pseudo-planar heterojunction active layer [J]. | JOURNAL OF PHYSICS D-APPLIED PHYSICS , 2024 , 57 (31) . |
| MLA | Zheng, Qiao et al. "Improved performance of ternary organic solar cells based on both bulk and pseudo-planar heterojunction active layer" . | JOURNAL OF PHYSICS D-APPLIED PHYSICS 57 . 31 (2024) . |
| APA | Zheng, Qiao , Zhou, Hui , Guo, Zhaohuang , Zhuang, Jinyong , Deng, Hui , Wu, Jionghua et al. Improved performance of ternary organic solar cells based on both bulk and pseudo-planar heterojunction active layer . | JOURNAL OF PHYSICS D-APPLIED PHYSICS , 2024 , 57 (31) . |
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Perovskite solar cells have gradually become the most attractive alternative for next-generation photovoltaic devices due to their excellent photovoltaic conversion efficiencies and low manufacturing costs. Defect engineering is an essential topic for improving the performance of perovskite devices. In this study, we utilize a bifunctional alkylamine sulfonate to modify the perovskite interfaces. The TsO- of sulfonates coordinates with Pb2+, while -NH2 of alkylamine forms hydrogen bonds with iodine, which reduces charge recombination and improves energy level arrangement. The molecular size and the alkylamine's dielectric constant significantly influence the interface modification performance. For the champion device with BATsO treatment, there is an enhancement in both the fill factor and the open-circuit voltage, resulting in a power conversion efficiency (PCE) of 23.53%. After 400 h of working condition, the device maintains roughly 90.40% of its initial efficiency. Therefore, this study postulates that modifying bifunctional alkylamine sulfonates could effectively enhance the PSC's performance.
Keyword ：
Double -functional additive Double -functional additive Passivation defects Passivation defects Perovskite solar cells Perovskite solar cells
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| GB/T 7714 | Huang, Shaobiao , Wang, Renjie , Zheng, Qiao et al. Optimal interfacial engineering with different bifunctional alkylamine sulfonates for efficient perovskite solar cells [J]. | SOLAR ENERGY MATERIALS AND SOLAR CELLS , 2024 , 270 . |
| MLA | Huang, Shaobiao et al. "Optimal interfacial engineering with different bifunctional alkylamine sulfonates for efficient perovskite solar cells" . | SOLAR ENERGY MATERIALS AND SOLAR CELLS 270 (2024) . |
| APA | Huang, Shaobiao , Wang, Renjie , Zheng, Qiao , Deng, Hui , Zhang, Caixia , Wang, Weihuang et al. Optimal interfacial engineering with different bifunctional alkylamine sulfonates for efficient perovskite solar cells . | SOLAR ENERGY MATERIALS AND SOLAR CELLS , 2024 , 270 . |
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Efficient ternary organic solar cells were achieved by utilizing an ultra-narrow bandgap material, IEICO-4 F, mixed with the fullerene material PC71BM as the acceptor and PTB7-Th polymer as the donor. The different weights of IEICO-4 F were dropped into the active layer to adjust the ratio of acceptor and donor, optimizing the performance of the cells. The results showed the ternary organic solar cells with 10wt% IEICO-4 F could obtain a higher short-circuit current density resulting in the power conversion efficiency (PCE) up to 9.56%. MoO3/Ag/MoO3 as the transparent electrodes of the semitransparent organic solar cell (ST-OSCs) were prepared. The different thicknesses of Ag impacts on the performance of the ST-OSCs were investigated. The PCE of the ternary ST-OSCs was increased to 7.34% and the average visible light transmittance (AVT) was increased to 28.74% when Ag was 10 nm thickness. The ternary ST-OSCs presented both a good light transmittance and a high PCE. In addition, the light utilization efficiency of the ST-OSCs was increased to 2.1%, and the color reproduction index was improved too. The PCE and AVT of the ST-OSCs could improve simultaneously due to the appropriate ratio of the acceptor and donor as well as the optimized transparent electrodes.
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| GB/T 7714 | Zheng, Qiao , Zhou, Hui , Du, Shunli et al. Efficiency and average visible light transmittance improved simultaneously of the semitransparent organic solar cells [J]. | JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS , 2024 , 35 (6) . |
| MLA | Zheng, Qiao et al. "Efficiency and average visible light transmittance improved simultaneously of the semitransparent organic solar cells" . | JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 35 . 6 (2024) . |
| APA | Zheng, Qiao , Zhou, Hui , Du, Shunli , Chen, Pengsen , Huang, Jingang , Deng, Hui et al. Efficiency and average visible light transmittance improved simultaneously of the semitransparent organic solar cells . | JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS , 2024 , 35 (6) . |
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Perovskite solar cells (PSCs) efficiency has recently achieved significant advancements, surpassing the 26% threshold. Excessive PbI2, often used in high-efficiency PSCs, will also cause stability or defect problems. To address these challenges, we introduce anionic and cationic bifunctional additives to passivate PSCs synergistically. Phenylethylamine trifluoroacetate (PEATFA) is utilized as an additive to passivate the perovskite film. The PEA(+) cation facilitates the formation of two-dimensional perovskite while TFA(-) anion passivate the uncoordinated Pb2+ ions and iodine vacancies, enhancing perovskite crystal quality without excess PbI2. Furthermore, PEATFA modification optimizes the energy level matching between the perovskite and charge transfer layers, thereby enhancing charge transfer and extraction capabilities. Finally, the device achieves an impressive power conversion efficiency of 24.05% while exhibiting minimal hysteresis and good stability.
Keyword ：
double-functional additive double-functional additive passivation defects passivation defects perovskite solar cells perovskite solar cells phenethylamine trifluoroacetate phenethylamine trifluoroacetate
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| GB/T 7714 | Wu, Jionghua , Hang, Chenwang , Wang, Renjie et al. Double-functional additive strategy for efficient perovskite solar cells [J]. | SCIENCE CHINA-MATERIALS , 2024 , 67 (8) : 2628-2636 . |
| MLA | Wu, Jionghua et al. "Double-functional additive strategy for efficient perovskite solar cells" . | SCIENCE CHINA-MATERIALS 67 . 8 (2024) : 2628-2636 . |
| APA | Wu, Jionghua , Hang, Chenwang , Wang, Renjie , Zheng, Qiao , Deng, Hui , Zhang, Caixia et al. Double-functional additive strategy for efficient perovskite solar cells . | SCIENCE CHINA-MATERIALS , 2024 , 67 (8) , 2628-2636 . |
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