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1. Full Text Electron-hole diffusion lengths > 175 μm in solution-grown CH3NH3PbI3 single crystals
by Dong, Qingfeng and Fang, Yanjun and Shao, Yuchuan and Mulligan, Padhraic and Qiu, Jie and Cao, Lei and Huang, Jinsong and Univ. of Nebraska, Lincoln, NE (United States)
Science, ISSN 0036-8075, 02/2015, Volume 347, Issue 6225, pp. 967 - 970
Long, balanced electron and hole diffusion lengths greater than 100 nanometers in the polycrystalline organolead trihalide compound CH3NH3PbI3 are critical for... 
SOLAR ENERGY | MATERIALS SCIENCE
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2. Full Text Highly narrowband perovskite single-crystal photodetectors enabled by surface-charge recombination
by Fang, Yanjun and Dong, Qingfeng and Shao, Yuchuan and Yuan, Yongbo and Huang, Jinsong
Nature Photonics, ISSN 1749-4885, 09/2015, Volume 9, Issue 10, pp. 679 - 686
Organolead trihalide perovskite is an emerging low-cost, solution-processable material with a tunable bandgap from the violet to near-infrared, which has... 
ELECTRON | PHYSICS, APPLIED | PASSIVATION | DEPOSITION | LIGHT | HALIDE PEROVSKITE | LENGTHS | DIFFUSION | OPTICS | HETEROJUNCTION SOLAR-CELLS | CH3NH3PBI3 | EFFICIENCY | Carriers | Electrodes | Single crystals | Crystal surfaces | Perovskites | Photodetectors | Spectra | Narrowband
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3. Full Text Giant switchable photovoltaic effect in organometal trihalide perovskite devices
by Xiao, Zhengguo and Yuan, Yongbo and Shao, Yuchuan and Wang, Qi and Dong, Qingfeng and Bi, Cheng and Sharma, Pankaj and Gruverman, Alexei and Huang, Jinsong and Univ. of Nebraska, Lincoln, NE (United States)
Nature Materials, ISSN 1476-1122, 2015, Volume 14, Issue 2, pp. 193 - 197
Organolead trihalide perovskite (OTP) materials are emerging as naturally abundant materials for low-cost, solution-processed and highly effcient solar... 
HIGH-PERFORMANCE | PHYSICS, CONDENSED MATTER | PHYSICS, APPLIED | SOLAR-CELLS | MECHANISM | DEPOSITION | MATERIALS SCIENCE, MULTIDISCIPLINARY | CHEMISTRY, PHYSICAL | LENGTHS | HALIDE PEROVSKITES | BIFEO3 | Photovoltaic cells | Materials science | Solar cells | Photoelectric effect | Photocurrent | Photovoltaic effect | Ferroelectric materials | Perovskites | Devices | Electric fields | SOLAR ENERGY | MATERIALS SCIENCE | solar cells
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4. Full Text Air‐Stable, Efficient Mixed‐Cation Perovskite Solar Cells with Cu Electrode by Scalable Fabrication of Active Layer
by Deng, Yehao and Dong, Qingfeng and Bi, Cheng and Yuan, Yongbo and Huang, Jinsong
Advanced Energy Materials, ISSN 1614-6832, 06/2016, Volume 6, Issue 11, pp. 1600372 - n/a
High efficiency and air stable doctor‐blade coated perovskite solar cells are reported. The high quality mixed cation perovskite film (FA x MA1− x PbI3) is... 
perovskite | solar cells | scalable fabrication | stability | HIGH-PERFORMANCE | PHYSICS, CONDENSED MATTER | PHYSICS, APPLIED | LOW-COST | ENERGY & FUELS | MATERIALS SCIENCE, MULTIDISCIPLINARY | CHEMISTRY, PHYSICAL | ORGANOMETAL TRIHALIDE PEROVSKITE | DEGRADATION | Solar cells | Solar batteries | Perovskite | Photovoltaic cells | Electrodes | Stability | CATHODES | Perovskites | FABRICATION | Coating | Copper | Paving
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5. Full Text Chloride Incorporation Process in CH3NH3PbI3-xClx Perovskites via Nanoscale Bandgap Maps
by Chae, Jungseok and Dong, Qingfeng and Huang, Jinsong and Centrone, Andrea
Nano Letters, ISSN 1530-6984, 12/2015, Volume 15, Issue 12, pp. 8114 - 8121
CH 3 NH 3 PbI 3-x Cl x perovskites enable fabrication of highly efficient solar cells. Chloride ions benefit the morphology, carrier diffusion length and... 
PTIR | solar cells | bandgap | nanoscale mapping | Mixed-halide organolead perovskites | mixed-halide organolead perovskites
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6. Full Text Enhancing stability and efficiency of perovskite solar cells with crosslinkable silane-functionalized and doped fullerene
by Bai, Yang and Dong, Qingfeng and Shao, Yuchuan and Deng, Yehao and Wang, Qi and Shen, Liang and Wang, Dong and Wei, Wei and Huang, Jinsong and Univ. of Nebraska-Lincoln, Lincoln, NE (United States)
Nature Communications, ISSN 2041-1723, 10/2016, Volume 7, Issue 1, p. 12806
The instability of hybrid perovskite materials due to water and moisture arises as one major challenge to be addressed before any practical application of the... 
THIN-FILMS | ABSORBER | PERFORMANCE | HYSTERESIS | MULTIDISCIPLINARY SCIENCES | GROWTH | LENGTHS | EMERGENCE | SOLAR ENERGY | solar cells | electronic devices
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7. Full Text A nanocomposite ultraviolet photodetector based on interfacial trap-controlled charge injection
by Guo, Fawen and Yang, Bin and Yuan, Yongbo and Xiao, Zhengguo and Dong, Qingfeng and Bi, Yu and Huang, Jinsong
Nature Nanotechnology, ISSN 1748-3387, 2012, Volume 7, Issue 12, pp. 798 - 802
Ultraviolet photodetectors have applications in fields such as medicine, communications and defence(1), and are typically made from single-crystalline silicon,... 
NANOPARTICLES | POLYMER SOLAR-CELLS | FILMS | FULLERENE | MATERIALS SCIENCE, MULTIDISCIPLINARY | NANOSCIENCE & NANOTECHNOLOGY | ZNO | QUANTUM-DOT PHOTODETECTORS | SPECTRAL RESPONSE | EFFICIENCY | BLENDS | MORPHOLOGY
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8. Full Text Quantification of re-Absorption and re-emission processes to determine photon recycling efficiency in perovskite single crystals
by Fang, Yanjun and Wei, Haotong and Dong, Qingfeng and Huang, Jinsong
Nature Communications, ISSN 2041-1723, 02/2017, Volume 8, Issue 1, p. 14417
Photon recycling, that is, iterative self-absorption and re-emission by the photoactive layer itself, has been speculated to contribute to the high... 
SOLAR-CELLS | PHOTOLUMINESCENCE | DEPOSITION | MULTIDISCIPLINARY SCIENCES | GROWTH | MU-S | DIFFUSION | SELF-ABSORPTION | HALIDE PEROVSKITES | GAAS | DOUBLE HETEROSTRUCTURES
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9. Full Text Efficient Semitransparent Perovskite Solar Cells for 23.0%‐Efficiency Perovskite/Silicon Four‐Terminal Tandem Cells
by Chen, Bo and Bai, Yang and Yu, Zhengshan and Li, Tao and Zheng, Xiaopeng and Dong, Qingfeng and Shen, Liang and Boccard, Mathieu and Gruverman, Alexei and Holman, Zachary and Huang, Jinsong and Univ. of Nebraska-Lincoln, Lincoln, NE (United States)
Advanced Energy Materials, ISSN 1614-6832, 10/2016, Volume 6, Issue 19, pp. 1601128 - n/a
Semitransparent perovskite solar cells based on smooth perovskite films and ultrathin Cu (1 nm)/Au (7 nm) metal electrode demonstrate an efficiency of 16.5%.... 
semitransparent | metal electrodes | silicon solar cells | perovskite solar cells | tandem | PHYSICS, CONDENSED MATTER | PHYSICS, APPLIED | ENERGY & FUELS | DEPOSITION | MATERIALS SCIENCE, MULTIDISCIPLINARY | SILICON | IODIDE | CHEMISTRY, PHYSICAL | REFLECTORS | LAYERS | EXTRACTION | GROWTH | LEAD BROMIDE | ELECTRODE | Solar cells | Solar batteries | Perovskite | Photovoltaic cells | Electrodes | Gold | Efficiency | Heterojunctions | Silicon | Perovskites | ENERGY STORAGE | perovskite solar cell | metal electrode | semi-transparent | MATERIALS SCIENCE | silicon solar cell
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10. Full Text Abnormal crystal growth in CH 3 NH 3 PbI 3-x Cl x using a multi-cycle solution coating process
by Dong, Qingfeng and Yuan, Yongbo and Shao, Yuchuan and Fang, Yanjun and Wang, Qi and Huang, Jinsong
Energy and Environmental Science, ISSN 1754-5692, 2015, Volume 8, Issue 8, pp. 2464 - 2470
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11. Full Text 清风夏梦午后窗
by 董希源
荣宝斋, ISSN 1009-0649, 2016, Issue 1, pp. F0003 - F0003
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12. Full Text Composition Engineering in Doctor‐Blading of Perovskite Solar Cells
by Tang, Shi and Deng, Yehao and Zheng, Xiaopeng and Bai, Yang and Fang, Yanjun and Dong, Qingfeng and Wei, Haotong and Huang, Jinsong
Advanced Energy Materials, ISSN 1614-6832, 09/2017, Volume 7, Issue 18, pp. 1700302 - n/a
Organic–inorganic halide perovskite (OIHP) solar cells with efficiency over 18% power conversion efficiency (PCE) have been widely achieved with lab scale... 
composition engineering | doctor‐blading | perovskite solar cells | doctor-blading | PHYSICS, CONDENSED MATTER | PHYSICS, APPLIED | ENERGY & FUELS | STABILIZATION | MATERIALS SCIENCE, MULTIDISCIPLINARY | CHEMISTRY, PHYSICAL | HALIDE PEROVSKITES | PHASE | COST | LEAD IODIDE PEROVSKITES | FABRICATION | Thin films | Perovskite | Dielectric films | Physicians | Solar generators | Solar cells | Bromine | Photovoltaic cells | Conversion coating | Cesium | Silicon | Energy conversion efficiency
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13. Full Text Charge Carrier Lifetimes Exceeding 15 μs in Methylammonium Lead Iodide Single Crystals
by Bi, Yu and Hutter, Eline M and Fang, Yanjun and Dong, Qingfeng and Huang, Jinsong and Savenije, Tom J
The Journal of Physical Chemistry Letters, ISSN 1948-7185, 03/2016, Volume 7, Issue 5, pp. 923 - 928
The charge carrier lifetime in organic–inorganic perovskites is one of the most important parameters for modeling and design of solar cells and other types of... 
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14. Full Text Thin single crystal perovskite solar cells to harvest below-bandgap light absorption
by Chen, Zhaolai and Dong, Qingfeng and Liu, Ye and Bao, Chunxiong and Fang, Yanjun and Lin, Yun and Tang, Shi and Wang, Qi and Xiao, Xun and Bai, Yang and Deng, Yehao and Huang, Jinsong
Nature Communications, ISSN 2041-1723, 12/2017, Volume 8, Issue 1, pp. 1890 - 7
The efficiency of perovskite solar cells has surged in the past few years, while the bandgaps of current perovskite materials for record efficiencies are much... 
CRYSTALLIZATION | TRIHALIDE | PERFORMANCE | DEPOSITION | MULTIDISCIPLINARY SCIENCES | DIFFUSION | FABRICATION | HALIDE PEROVSKITES | EFFICIENT | CH3NH3PBI3 | LAYERS | Crystal growth | Solar cells | Spectral response | Electromagnetic absorption | Crystals | Hydrophobicity | Substrates | Open circuit voltage | Thin films | Thickness | Single crystals | Micrometers | Absorption | Photovoltaic cells | Efficiency | Lead
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15. Full Text Fast Growth of Thin MAPbI3 Crystal Wafers on Aqueous Solution Surface for Efficient Lateral‐Structure Perovskite Solar Cells
by Liu, Ye and Dong, Qingfeng and Fang, Yanjun and Lin, Yuze and Deng, Yehao and Huang, Jinsong
Advanced Functional Materials, ISSN 1616-301X, 11/2019, Volume 29, Issue 47, p. n/a
Solar‐grade single or multiple crystalline wafers are needed in large quantities in the solar cell industry, and are generally formed by a top‐down process... 
lateral structure | fast growth | perovskite solar cells | crystal wafer | aqueous solution | Solar cells | Crystal growth | Carrier recombination | Electromagnetic absorption | Crystals | Slicing | Raw materials | Perovskites | Crystallinity | Single crystals | Aqueous solutions | Photovoltaic cells | Wafers | Crystal structure | Energy conversion efficiency
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16. Full Text Polydopamine Nanotubes as an Effective Fluorescent Quencher for Highly Sensitive and Selective Detection of Biomolecules Assisted with Exonuclease III Amplification
by Fan, Daoqing and Zhu, Xiaoqing and Zhai, Qingfeng and Wang, Erkang and Dong, Shaojun
Analytical Chemistry, ISSN 0003-2700, 09/2016, Volume 88, Issue 18, pp. 9158 - 9165
In this work, the effective fluorescence quenching ability of polydopamine nanotubes (PDANTs) toward various fluorescent dyes was studied and further applied... 
DNA DETECTION | CHEMISTRY, ANALYTICAL | IN-VITRO | OXIDE | RECOGNITION | NANOPROBE | WS2 NANOSHEET | NANOSPHERES | DOPAMINE | SENSING PLATFORM | PROBES | Nanotubes - ultrastructure | Fluorescent Dyes - chemistry | Spectrometry, Fluorescence - methods | Limit of Detection | Adenosine Triphosphate - analysis | HIV Infections - virology | Humans | DNA, Viral - analysis | HIV - isolation & purification | Adenosine Triphosphate - blood | Nanotubes - chemistry | Animals | Cattle | Exodeoxyribonucleases - metabolism | Biosensing Techniques - methods | Polymers - chemistry | Indoles - chemistry | Fluorescence | Biomolecules | Usage | Research | Chemical properties | Chemical compounds
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17. Full Text Hybrid Spoof Surface Plasmon Polariton and Substrate Integrated Waveguide Transmission Line and Its Application in Filter
by Dong-Fang Guan and Peng You and Qingfeng Zhang and Ke Xiao and Shao-Wei Yong
IEEE Transactions on Microwave Theory and Techniques, ISSN 0018-9480, 12/2017, Volume 65, Issue 12, pp. 4925 - 4932
In this paper, spoof surface plasmon polariton (SPP) is integrated in the closed substrate integrated waveguide (SIW) structure and a novel hybrid SIW-SPP... 
Bandpass filter (BPF) | Surface waves | surface plasmon polariton (SPP) | wideband | Cutoff frequency | substrate integrated waveguide (SIW) | Propagation losses | Plasmons | Dispersion | Substrates | Optical surface waves | Substrate integrated waveguide (SIW) | Surface plasmon polariton (SPP) | Wideband | SIW | COUPLERS | ULTRATHIN | MODE | ANTENNA | BROAD-BAND | ENGINEERING, ELECTRICAL & ELECTRONIC | Waveguides | Usage | Dispersion measures (Statistics) | Research | Electric power transmission | Broadband | Substrate integrated waveguides | Bandwidth | Polaritons | Bandpass filters | Wave dispersion
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18. Full Text Thin Insulating Tunneling Contacts for Efficient and Water‐Resistant Perovskite Solar Cells
by Wang, Qi and Dong, Qingfeng and Li, Tao and Gruverman, Alexei and Huang, Jinsong and Univ. of Nebraska, Lincoln, NE (United States)
Advanced Materials, ISSN 0935-9648, 08/2016, Volume 28, Issue 31, pp. 6734 - 6739
Tunneling contacts made of any insulating polymers, a champion technology in silicon solar cells, are shown to increase the stabilized efficiency of perovskite... 
PHYSICS, CONDENSED MATTER | PHYSICS, APPLIED | PASSIVATION | PERFORMANCE | MATERIALS SCIENCE, MULTIDISCIPLINARY | CHEMISTRY, PHYSICAL | NANOSCIENCE & NANOTECHNOLOGY | HALIDE PEROVSKITES | EMERGENCE | CHEMISTRY, MULTIDISCIPLINARY | LAYERS | MOBILITIES | SINGLE-CRYSTALS | HYSTERESIS | ENHANCEMENT | DIFFUSION | Perovskite | Solar cells | Photovoltaic cells | Charge | Tunneling | Silicon | Perovskites | Polymers | Contact | ENERGY STORAGE | MATERIALS SCIENCE
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