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CoTCPP integrates with BiOBr microspheres for improved solar-driven CO_(2)reduction performance

Green Energy & Environment 2025年第1期10卷 193-202页

作者： Lina Li Yi Zhang Gaopeng Liu Tiange Wei Junze Zhao Bin Wang Mengxia Ji Yuanbin She Jiexiang Xia Huaming Li School of Chemistry and Chemical Engineering Institute for Energy ResearchJiangsu University301 Xuefu RoadZhenjiang212013China State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology College of Chemical EngineeringZhejiang University of TechnologyHangzhou310014China

CO_(2) photoreduction into carbon-based chemicals has been considered as an appropriate way to alleviate the energy issue and greenhouse ***,the 5,10,15,20-tetra(4-carboxyphenyl)porphyrin cobalt(II)(CoTCPP)has been integrated with BiOBr microspheres and formed the CoTCPP/BiOBr *** as-prepared CoTCPP/BiOBr-2 composite shows optimized photocatalytic performance for CO_(2) conversion into CO and CH_(4) upon irradiation with 300 W Xe lamp,which is 2.03 and 2.58 times compared to that of BiOBr,*** introduced CoTCPP significantly enhanced light absorption properties,promoted rapid separation of photogenerated carriers and boosted the chemisorption of CO_(2) *** metal Co^(2+) at the center of the porphyrin molecules also acts as adsorption center for CO_(2) molecules,accelerating the CO_(2) conversion into CO and *** possible mechanism of CO_(2) photoreduction was explored by in-situ FT-IR *** work offers a new possibility for the preparation of advanced photocatalysts.

关键词： BiOBr CoTCPP CO_(2)photoreduction carriers transfer CO_(2)adsorption-activation

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2D Nb_(2)CT_(x) MXene/MoS_(2) heterostructure construction for nonlinear optical absorption modulation

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Opto-Electronic Advances 2023年第10期6卷 6-16页

作者： Yiduo Wang Yingwei Wang Yulan Dong Li Zhou Jianlong Kang Ning Wang Yejun Li Xiaoming Yuan Zhengwei Zhang Han Huang Mengqiu Long Si Xiao Jun He Hunan Key Laboratory of Nanophotonics and Devices School of Physics and ElectronicsCentral South UniversityChangsha 410083China Key Laboratory of Hunan Province for Statistical Learning and Intelligent Computation School of Mathematics and StatisticsHunan University of Technology and BusinessChangsha 410205China.

Two-dimensional(2D)nonlinear optical mediums with high and tunable light modulation capability can significantly stimulate the development of ultrathin,compact,and integrated optoelectronics devices and photonic elements.2D carbides and nitrides of transition metals(MXenes)are a new class of 2D materials with excellent intrinsic and strong light-matter interaction ***,the current understanding of their photo-physical properties and strategies for improving optical performance is *** address this issue,we rationally designed and in situ synthesized a 2D Nb_(2)C/MoS_(2) heterostructure that outperforms pristine Nb2C in both linear and nonlinear optical *** agreement between experimental and theoretical results demonstrated that the Nb_(2)C/MoS_(2) inherited the preponderance of Nb_(2)C and MoS_(2) in absorption at different wavelengths,resulting in the broadband enhanced optical absorption *** addition to linear optical modulation,we also achieved stronger near infrared nonlinear optical modulation,with a nonlinear absorption coefficient of Nb_(2)C/MoS_(2) being more than two times that of the pristine Nb_(2)*** results were supported by the band alinement model which was determined by the X-ray photoelectron spectroscopy(XPS)experiment and first-principal theory *** presented facile synthesis approach and robust light modulation strategy pave the way for broadband optoelectronic devices and optical modulators.

关键词： MXenes optical properties modulation in situ growth carriers transfer nonlinear optical absorption

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Graphdiyne oxide doping for aggregation control of hole-transportnanolayer in inverted perovskite solar cells

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Nano Research 2022年第11期15卷 9734-9740页

作者： Xu Cai Jin Tang Min Zhao Le Liu Zhibin Yu Jiajia Du Ling Bai Fushen Lu Tonggang Jiu Yuliang Li Science Center for Material Creation and Energy Conversion Institute of Frontier and Interdisciplinary Science&School of Chemistry and Chemical EngineeringShandong UniversityQingdao 266237China Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province Shantou UniversityShantou 515063China Beijing National Laboratory for Molecular Sciences(BNLMS) Institute of ChemistryChinese Academy of SciencesBeijing 100190China

The strong aggregation tendency of hole transport material poly[3-(4-carboxylbutyl)thiophene-K(P3CT-K)restricts its further application in inverted perovskite solar cells(PSCs).Here,we report an effective strategy to address this issue and achieve the superior performance of inverted methylammonium lead triiodide(MAPbI3)PSCs,in which graphdiyne oxide(GDYO)doped P3CT-K nanocomposites are applied as the hole transport nanolayer(HTL).It is revealed that the strongπ–πstacking interaction occurs between GDYO and P3CT-K,which is proved by the blue shift of the absorption peak of P3CT-K *** aggregation control via GDYO contributes to the property improvement of P3CT-K ***,the homogeneous coverage induces the growth of perovskite grain with larger size than that based on the undoped *** a result,the optimized surface morphology,enhanced conductivity,charge extraction as well as better crystal quality,finally improve the device *** optimal power conversion efficiency of 19.06%is achieved,with simultaneously improved fill factor and short circuit current *** work presents the potential of functional graphdiyne(GDY)in the development of highly efficient photovoltaic device.

关键词： graphdiyne oxide perovskite solar cells hole transport layer aggregation control carriers transfer

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