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Pyramid-Textured Antireflective Silicon Surface In Graphene Oxide/Single-Wall Carbon Nanotube–Silicon Heterojunction solar cells

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Energy & Environmental Materials 2018年第4期1卷 232-240页

作者： LePing Yu Munkhbayar Batmunkh Mahnaz Dadkhah Cameron J.Shearer Joseph G.Shapter Flinders Institute for Nanoscale Science and Technology College of Science and EngineeringFlinders UniversityBedford ParkSA 5042Australia School of Chemistry and Chemical EngineeringShanghai University of Engineering ScienceShanghai201620PR China Flinders Institute for Nanoscale Science and Technology College of Science and EngineeringFlinders UniversityBedford ParkSA 5042Australia Australian Institute for Bioengineering and Nanotechnology University of QueenslandSt.Lucia Qld 4072Australia Department of Chemistry The University of AdelaideAdelaideSA 5005Australia

Antireflection layers are commonly used in photovoltaics to increase light absorption and therefore increase maximum photocurrent.Here,pyramid structures are created on Si surfaces with alkaline solution etching.The extent of pyramid coverage depends directly on the reaction time and as a result,the surface reflectance decreases with reaction time.

关键词： antireflection treatment carbon nanotubes solar cells

Challenges and Prospects of Nanopillar-Based solar cells

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Nano Research 2009年第11期2卷 829-843页

作者： Zhiyong Fan Daniel J.Ruebusch Asghar A.Rathore Rehan Kapadia Onur Ergen Paul W.Leu Ali Javey Department of Electrical Engineering and Computer Sciences University of California at BerkeleyBerkeleyCA 94720USA Berkeley Sensor and Actuator Center University of California at BerkeleyBerkeleyCA 94720USA Materials Sciences Division Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA

Materials and device architecture innovations are essential for further enhancing the performance of solar cells while potentially enabling their large-scale integration as a viable source of alternative energy.In this regard,tremendous research has been devoted in recent years with continuous progress in the field.In this article,we review the recent advancements in nanopillar-based photovoltaics while discussing the future challenges and prospects.Nanopillar arrays provide unique advantages over thin films in the areas of optical properties and carrier collection,arising from their three-dimensional geometry.The choice of the material system,however,is essential in order to gain the advantage of the large surface/interface area associated with nanopillars with the constraints different from those of the thin film devices.

关键词： Nanopillar-based photovoltaics solar cells nanowires(NWs)

Development of Inorganic solar cells by Nanotechnology

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Nano-Micro Letters 2012年第2期4卷 124-134页

作者： Yafei Zhang Huijuan Geng Zhihua Zhou Jiang Wu Zhiming Wang Yaozhong Zhang Zhongli Li Liying Zhang Zhi Yang Huey Liang Hwang Key Laboratory for Thin Film and Microfabrication of the Ministry of Education Research Institute of Micro/Nano Science and Technology Shanghai Jiaotong University

Inorganic solar cells, as durable photovoltaic devices for harvesting electric energy from sun light,have received tremendous attention due to the fear of exhausting the earth's energy resources and damaging the living environment due to greenhouse gases. Some recent developments in nanotechnology have opened up new avenues for more relevant inorganic solar cells produced by new photovoltaic conversion concepts and effective solar energy harvesting nanostructures. In this review, the multiple exciton generation effect solar cells, hot carrier solar cells, one dimensional material constructed asymmetrical schottky barrier arrays, noble nanoparticle induced plasmonic enhancement, and light trapping nanostructured semiconductor solar cells are highlighted.

关键词： Inorganic solar cells Photovoltaic Nanotechnology

First-principles calculations of nitrogen-doped antimony triselenide： A prospective material for solar cells and infrared optoelectronic devices

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Frontiers of physics 2018年第3期13卷 129-140页

作者： Sajid-ur-Rehman Faheem K. Butt Chuanbo Li Bakhtiar U1 Haq Zeeshan Tariq F. Aleem State Key Laboratory on Integrated Optoelectronics Institute of Semiconductors Chinese Academy of Sciences College of Materials Science and Opto-Electronic Technology University of Chinese Academy of Sciences Beijing 100083 China University of Chinese Academy of Sciences Beijing 100049 China Department of Physics Division of Science and Technology University of Education College Road Township Lahore 54770 Pakistan Physik-Department ECS Technische Universitat Miinchen James-Franck-Str. 1 D-85748 Garching Germany School of Science Minzu University of China Beijing 100081 China Advanced Functional Materials & Optoelectronics Laboratory (AFMOL) Department of Physics Faculty of Science King Khalid University P.O. Box 9004 Abha Saudi Arabia Research Center for Advanced Materials Science (RCAMS) King Khalid University Abha 61413 P.O. Box 9004 Saudi Arabia Department of Physics The University of Lahore l-Kin Raiwind Road Lahore 53700 Pakistan

This study is focused on calculation of the electronic structure and optical properties of non-metal doped Sb2Se3 using the first-principles method. One and two N atoms are introduced to Sb and Se sites in a Sb2Se3 crystal. When one and two N atoms are introduced into the Sb2Se3 lattice at Sb sites, the electronic structure shows that the doping significantly modifies the bandgap of Sb2Se3 from 1.11 eV to 0.787 and 0.685 eV, respectively. When N atoms are introduced to Se sites, the material shows a metallic behavior. The static dielectric constants el（0） for Sb16Se24, SblsN1Se24, Sb14N2Se24, Sb16Se23N1, and Sb16Se22N2 are 14.84, 15.54, 15.02, 18.9, and 39.29, respectively. The calculated values of the refractive index n（0） for Sb16Se24, SblsN1Se24, Sb14N2Se24, Sb16Se23N1, and Sb16Se22N2 are 3.83, 3.92, 3.86, 4.33, and 6.21, respectively. The optical absorbance and optical conductivity curves of the crystal for N-doping at Sb sites show a significant redshift towards the short-wave infrared spectral region as compared to N-doping at Se sites. The modulation of the static refractive index and static dielectric constant is mainly dependent on the doping level. The optical properties and bandgap narrowing effect suggest that the N-doped Sb2Se3is a promising new semiconductor and can be a replacement for GaSb due to its very similar bandgap and low cost.

关键词： Sb2Se3 infrared optical properties solar cells optoelectronic devices

Highly compact and uniform CH3NH3Sn0.5Pb0.5I3 films for efficient panchromatic planar perovskite solar cells

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Science Bulletin 2016年第20期61卷 1558-1562页

作者： Miaoqiang Lyu Meng Zhang Nathan A. Cooling Yalong Jiao Qiong Wang Jung-Ho Yun Ben Vaughan Gerry Triani Peter Evans Xiaojing Zhou Krishna Feron Aijun Du Paul Dastoor Lianzhou Wang Nanomaterials Centre School of Chemical Engineering and AIBN The University of Queensland St. Lucia BrisbaneQLD 4072 Australia Centre for Organic Electronics University of NewcastleUniversity Drive Callaghan NSW 2308 Australia School of Chemistry Physics and Mechanical EngineeringQueensland University of Technology Garden Point CampusBrisbane QLD 4001 Australia School of Chemistry Queensland University of TechnologyBrisbane QLD 4001 Australia ANSTO Institute of Materials and Engineering PMB 1 MenaiNSW 2234 Australia CSIRO Energy Mayfield West NSW 2304 Australia

An efficient panchromatic planar perovskite solar cell is developed based on highly uniform,lead-reduced CH3NH3Sn0.5Pb0.5I3 perovskite films with full film-coverage on the substrates.We demonstrate here that full-coverage of the CH3NH3Sn0.5Pb0.5I3 films can be developed by a facile chlorobenzene-assisted spin-coating method.A power conversion efficiency of 7 % is achieved using low-temperature processes,which is among the best-reported performance for panchromatic planar perovskite solar cells with a light-absorption over 1,000 nm.

关键词： Metal halide perovskite Mixed metal cations solar cells Film engineering Solvent engineering

A Non-traditional Technique Raising Efficiencies for All Kinds of solar cells

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Journal of Environmental Science and Engineering(A) 2023年第6期12卷 214-222页

作者： Jianming Li Institute of Semiconductors Chinese Academy of SciencesA35 Qinghua East RoadHaidian DistrictBeijing 100083China

A VSM(V-Shaped Module)technique is effective for boosting the efficiencies of solar cells,which has been confirmed by several research groups in Europe and America.In this study,a 60%efficiency enhancement due to the VSM technique is obtained for solar cells with the fewest possible defects,which is verified under direct sunlight illumination.The following three mechanisms are proposed to explain the enhancement:(1)infrared photons emitted from the cells due to the law of energy conservation,(2)residual reflection which cannot be eliminated by an antireflection coating,and(3)photons reflected from electrode metal.At least,the reflection from the cells contributes to the easy-to-reproduce VSM enhancement effect.In the VSM,each tilted cell is a second source of incoming energy for the opposite cell.Due to light trapping,the 3D(Three-Dimension)configuration enables the VSM technique to increase efficiencies for all kinds of solar cells.The VSM technique,which has broken new ground in raising the efficiencies of solar cells,has opened new avenues in area-limited solar-energy applications such as concentrator solar cells,sun tracking solar panels,solar-powered vehicles,and even photodetectors etc.

关键词： solar cells clean energy photovoltaic module V-shaped configuration

Electrodeposition and Characterization of CuInSe_2 Thin Films for solar cells

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Journal of Wuhan University of Technology(Materials Science) 2007年第1期22卷 140-143页

作者：李建庄赵修建 Key Laboratory of State Education Ministry for Silicate Materials Science and Engineering Wuhan University of Technology

CulnSe2 （CIS） thin films were prepared by electrodeposition from the de-ionized water solution consisting of CuCl2, InCl3, H2SeO3 and Na-citrate onto Mo/soda-lime glass （SLG） substrates. A thermal processing in Se atmosphere at 450℃ was carried out for the electrodepositied films to improve the stoichiometry. The composition and morphology of selenized CIS thin films were studied using energy dispersive spectroscopy （EDS） and scanning electron microscopy （SEM）, respectively. X-ray diffraction （XRD） studies show that the annealing in Se atmosphere at 450℃ promotes the structural formation of CIS chalcopyrite structure.

关键词： CuInSe2 （CIS） electrodeposition solar cells

Recent progress in stability of perovskite solar cells

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Journal of Semiconductors 2017年第1期38卷 2-10页

作者： Xiaojun Qin Zhiguo Zhao Yidan Wang Junbo Wu Qi Jiang Jingbi You China Huaneng Group Beijing 100031China China Huaneng Clean Energy-Research Institute Beijing 102209China Key Lab of Semiconductor Materials Science Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China College of Materials Science and Opto-Electronic Technology University of Chinese Academy of SciencesBeijing 100049China

Perovskite solar cells have attracted significant attention in just the past few years in solar cell research fields,where the power conversion efficiency was beyond 22.1%.Now,the most important challenge for perovskite solar cells in practical applications is the stability issue.In this mini-review,we will summarize the degradation mechanism of perovskite solar cells,including the perovskite material itself and also the interfaces.While we also provide our opinion on improving the stability of perovskite solar cells.

关键词： perovskite solar cells stability

Recent developments in sensitizers for mesoporous sensitized solar cells

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Frontiers of Optoelectronics 2013年第4期6卷 373-385页

作者： Kun CAO Mingkui WANG Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan 430074 China

Sensitizers have proven to be extremely important in determining the performance of dye-sensi- tized solar celIs （DSCs）. The design and understanding of sensitizers, especially D-n-A structured porphyrins, has become a recent focus of DSC research. In this perspective article, advances in the conception and performance of various sensitizers including ruthenium complexes, organic dyes and porphyrins are reviewed with respect to their structure and charge transfer dynamics at the dye- sensitized mcsopours heterojunction interface. In particu- lar, the discussion focuses on the trends that perovskite would be the most effective and most likely to be used in DSCs combining with innovative hole transporting materials.

关键词： solar cells sensitizer ruthenium complex,porphyrin organic dye