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1. Solar-driven capacity enhancement of aqueous redox batteries with a vertically oriented tin disulfide array as both the photo-cathode and battery-anode

Author:
TianThese authors contributed equally to this work., Zhengnan; Li, Chao; Cai, Jingsheng; Zhang, Li; Lu, Chen; Song, Yingze; Jiang, Tao; Sun, Jingyu; Dou, Shixue
Source:
Chemical communications 2019 v.55 no.9 pp. 1291-1294
ISSN:
1364-548X
Subject:
lighting,   etc   ; batteries; photocatalysis; tin;     Show all 4 Subjects
Abstract:
... An innovative photo-enhanced aqueous redox battery (PEARB) built upon a simple two-electrode configuration is demonstrated. The synergy of the photo-cathode and battery-anode is realized by directly growing vertically oriented SnS₂ arrays on Ti mesh, manifesting advanced photo-electrocatalytic activities. The assembled PEARB achieves 2.5-fold capacity enhancement under solar illumination. ...
DOI:
10.1039/c8cc08684b

2. Analogue of dual-controlled electromagnetically induced transparency based on a graphene metamaterial

Author:
Liu, Chenxi; Liu, Peiguo; Yang, Cheng; Lin, Yue; Liu, Hanqing
Source:
Carbon 2019 v.142 pp. 354-362
ISSN:
0008-6223
Subject:
lighting,   etc   ; angle of incidence; buffers; energy; graphene;     Show all 5 Subjects
Abstract:
... Analogue of dual-controlled electromagnetically induced transparency (EIT) based on graphene metamaterial is proposed and investigated. The structure consists of a simple graphene patch array connected by horizontal wires. The phase coupling induced by the oblique illumination results in the EIT-like spectral response in the investigated frequency range. By mechanically adjusting the incidence ang ...
DOI:
10.1016/j.carbon.2018.10.061

3. Randomized trial of polychromatic blue-enriched light for circadian phase shifting, melatonin suppression, and alerting responses

Author:
Hanifin, J.P.; Lockley, S.W.; Cecil, K.; West, K.; Jablonski, M.; Warfield, B.; James, M.; Ayers, M.; Byrne, B.; Gerner, E.; Pineda, C.; Rollag, M.; Brainard, G.C.
Source:
Physiology & behavior 2019 v.198 pp. 57-66
ISSN:
0031-9384
Subject:
fluorescent lighting,   etc   ; melatonin; photons; protocols; sleep; wavelengths;     Show all 6 Subjects
Abstract:
... Wavelength comparisons have indicated that circadian phase-shifting and enhancement of subjective and EEG-correlates of alertness have a higher sensitivity to short wavelength visible light. The aim of the current study was to test whether polychromatic light enriched in the blue portion of the spectrum (17,000 K) has increased efficacy for melatonin suppression, circadian phase-shifting, and aler ...
DOI:
10.1016/j.physbeh.2018.10.004

4. Synthesis of Two-Dimensional Alloy Ga₀.₈₄In₀.₁₆Se Nanosheets for High-Performance Photodetector

Author:
Yu, Miaomiao; Li, Hang; Liu, He; Qin, Fanglu; Gao, Feng; Hu, Yunxia; Dai, Mingjin; Wang, Lifeng; Feng, Wei; Hu, PingAn
Source:
ACS applied materials & interfaces 2018 v.10 no.50 pp. 43299-43304
ISSN:
1944-8252
Subject:
lighting,   etc   ; alloys; nanosheets;     Show all 3 Subjects
Abstract:
... The electronic and optoelectronic properties of 2D alloy Ga₀.₈₄In₀.₁₆Se were investigated for the first time. 2D Ga₀.₈₄In₀.₁₆Se FETs show p-type conduction behaviors. 2D Ga₀.₈₄In₀.₁₆Se photodetectors show high photoresponse in the visible light range of 500 to 700 nm. The responsivity value is 258 A/W for alloy photodetector (500 nm illumination), and it is 92 times and 20 times higher than those ...
DOI:
10.1021/acsami.8b15317

5. Development of powder distribution model of discontinuous coaxial powder stream in laser direct metal deposition

Author:
Wu, Jiazhu; Zhao, Penghui; Wei, Haiying; Lin, Qida; Zhang, Yi
Source:
Powder technology 2018 v.340 pp. 449-458
ISSN:
0032-5910
Subject:
lighting,   etc   ; models; powders;     Show all 3 Subjects
Abstract:
... For laser direct metal deposition (LDMD) process, a general powder distribution model of discontinuous coaxial powder stream (DCPS) was developed based on homogeneous transformation. An image-based powder measurement (IBPM) technique, whose illumination light is a cylindrical light, was used to acquire powder distribution characteristics. A set of data preprocessing methods were proposed to valida ...
DOI:
10.1016/j.powtec.2018.09.032

6. Phase-Engineering-Driven Enhanced Electronic and Optoelectronic Performance of Multilayer In2Se3 Nanosheets

Author:
Feng, Wei; Gao, Feng; Hu, Yunxia; Dai, Mingjin; Liu, He; Wang, Lifeng; Hu, PingAn
Source:
ACS applied materials & interfaces 2018 v.10 no.33 pp. 27584-27588
ISSN:
1944-8252
Subject:
lighting,   etc   ; engineering; nanosheets;     Show all 3 Subjects
Abstract:
... Here, we report electronic and optoelectronic performance of multilayer In₂Se₃ are effectively regulated by phase engineering. The electron mobility is increased to 22.8 cm² V–¹ s–¹ for β-In₂Se₃ FETs, which is 18 times higher than 1.26 cm² V–¹ s–¹ of α-In₂Se₃ FETs. The enhanced electronic performance is attributed to larger carrier sheet density and lower contact resistance. Multilayer β-In₂Se₃ ph ...
DOI:
10.1021/acsami.8b10194

7. Inkjet-Printed Multiwavelength Thermoplasmonic Images for Anticounterfeiting Applications

Author:
Kang, Hongki; Lee, Jee Woong; Nam, Yoonkey
Source:
ACS applied materials & interfaces 2018 v.10 no.7 pp. 6764-6771
ISSN:
1944-8252
Subject:
lighting,   etc   ; heat; nanoparticles; wavelengths;     Show all 4 Subjects
Abstract:
... Inkjet printing of thermoplasmonic nanoparticles enables instantaneous, large-area heat pattern generation upon light illumination from distance. By printing multiple metal nanoparticles of different shapes overlaid, we can fabricate multiwavelength thermoplasmonic images, which generate different heat patterns from a single printed image depending on the wavelength choice of light. In this work, ...
DOI:
10.1021/acsami.7b19342

8. On The Estimation of Temporal Changes of Snow Water Equivalent by Spaceborne Sar Interferometry: A New Application for the Sentinel-1 Mission

Author:
Conde, Vasco; Nico, Giovanni; Mateus, Pedro; Catalão, João; Kontu, Anna; Gritsevich, Maria
Source:
Vodohospodársky časopis 2019 v.67 no.1 pp. 93-100
ISSN:
0042-790X
Subject:
lighting,   etc   ; interferometry; models; snow; synthetic aperture radar; temporal variation; Finland;     Show all 7 Subjects
Abstract:
... In this work we present a methodology for the mapping of Snow Water Equivalent (SWE) temporal variations based on the Synthetic Aperture Radar (SAR) Interferometry technique and Sentinel-1 data. The shift in the interferometric phase caused by the refraction of the microwave signal penetrating the snow layer is isolated and exploited to generate maps of temporal variation of SWE from coherent SAR ...
DOI:
10.2478/johh-2018-0003

9. A novel rotational symmetry (RS) connection approach for dense-array concentrator photovoltaic (DA-CPV) modules

Author:
Pan, Xinyu; Ju, Xing; Xu, Chao; Du, Xiaoze; Yang, Yongping
Source:
Energy conversion and management 2019 v.181 pp. 359-371
ISSN:
0196-8904
Subject:
lighting,   etc   ; energy conversion; equipment performance; heat; solar collectors;     Show all 5 Subjects
Abstract:
... Dense array concentrator photovoltaic (DA-CPV) system is facing large mismatch losses due to the highly concentrated non-uniform radiation. In this paper, a novel rotational symmetry (RS) connection approach with two examples is proposed to reduce mismatch losses. The output performances of the two RS connections are compared with that of four conventional connections by using a two-stage simulati ...
DOI:
10.1016/j.enconman.2018.12.018

10. Direct Photothermal Measurement of Optical Absorption in a Flow System

Author:
Chouhan, Bikash; Dasgupta, Purnendu K.
Source:
Analytical chemistry 2019 v.91 no.4 pp. 2923-2931
ISSN:
1520-6882
Subject:
lighting,   etc   ; absorption; detection limit; dimerization; methylene blue; standard deviation; temperature;     Show all 7 Subjects
Abstract:
... We describe here a simple photothermal detection scheme in a flow stream based on the temperature difference upstream and downstream of the point of illumination. We use a single, two-junction 25 μm diameter thermocouple to measure the temperature change. The baseline standard deviation in the dark is ∼0.001 °C that increases up to 0.0016 °C depending on the illumination source. We demonstrate the ...
DOI:
10.1021/acs.analchem.8b05091

11. Unexpected wavelength dependency of the photocatalytic CO₂ reduction performance of the well-known (bpy)Re(CO)₃Cl complex

Author:
LangThe authors P. Lang and R. Giereth contributed equally to this article., Philipp; Giereth, Robin; Tschierlei, Stefanie; Schwalbe, Matthias
Source:
Chemical communications 2019 v.55 no.5 pp. 600-603
ISSN:
1364-548X
Subject:
lighting,   etc   ; carbon dioxide; carbon monoxide; filters; photocatalysis; spectroscopy; wavelengths;     Show all 7 Subjects
Abstract:
... The selective photocatalytic reduction of CO₂ to CO has often been accomplished using complexes incorporating the Re(CO)₃Cl fragment. We now discovered that the photocatalytic performance of the well-known parent compound (bpy)Re(CO)₃Cl (bpy = 2,2′-bipyridine) surprisingly depends on the illumination wavelengths: the turnover numbers (TONs) measured using various cut-off filters showed an increase ...
DOI:
10.1039/c8cc08742c

12. Efficient hydrogen evolution on (CuInS₂)ₓ(ZnS)₁₋ₓ solid solution-based photocathodes under simulated sunlight

Author:
ZhaoPresent address: Institute of Environmental Remediation, Dalian Maritime University, Dalian, Liaoning, 116026, China., Jiao; Minegishi, Tsutomu; Kaneko, Hiroyuki; Ma, Guijun; Zhong, Miao; Nakabayashi, Mamiko; HisatomiPresent address: Center for Energy & Environmental Science, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan., Takashi; Katayama, Masao; Shibata, Naoya; Yamada, Taro; Domen, Kazunari
Source:
Chemical communications 2019 v.55 no.4 pp. 470-473
ISSN:
1364-548X
Subject:
lighting,   etc   ; cathodes; chemical reactions; hydrogen production; zinc sulfide;     Show all 5 Subjects
Abstract:
... A thin film of (CuInS₂)ₓ(ZnS)₁₋ₓ has been developed as a photocathode for solar water splitting for the first time. A superior photoelectrochemical performance has been achieved, mainly attributed to the formation of a solid solution by CuInS₂ and ZnS, which proved to be an effective strategy to improve the onset potential and efficiency of CuInS₂ photocathodes. ...
DOI:
10.1039/c8cc08623k

13. New ferrocenyl-containing organic hole-transporting materials for perovskite solar cells in regular (n-i-p) and inverted (p-i-n) architectures

Author:
Jia, Jingwen; Duan, Liangsheng; Chen, Yu; Zong, Xueping; Sun, Zhe; Wu, Quanping; Xue, Song
Source:
RSC advances 2019 v.9 no.1 pp. 216-223
ISSN:
2046-2069
Subject:
lighting,   etc   ; energy; moieties; porous media; solar cells; solar energy; solubility;     Show all 7 Subjects
Abstract:
... Three triphenylamine derivatives containing ferrocenyl groups (JW6, JW7 and JW8) were synthesized by facile syntheses. Their HOMO levels match the valence band energy of CH₃NH₃PbI₃. The introduction of ferrocenyl was aimed to obtain hole transporting materials with high mobility for perovskite solar cells. JW7 shows higher hole mobility (4.2 × 10⁻⁴ cm² V⁻¹ s⁻¹) than JW6 (1.3 × 10⁻⁴ cm² V⁻¹ s⁻¹) an ...
DOI:
10.1039/c8ra08946a

14. Surface texture induced light extraction of novel Ce:YAG ceramic tubes for outdoor lighting

Author:
Sun, Bingheng; Zhang, Le; Huang, Guocan; Zhou, Tianyuan; Shao, Cen; Wang, Kaigang; Chen, Hao
Source:
Journal of materials science 2019 v.54 no.1 pp. 159-171
ISSN:
0022-2461
Subject:
lighting,   etc   ; ceramics; color; grinding; particle size; photons; temperature; texture;     Show all 8 Subjects
Abstract:
... Ce:YAG transparent ceramics for white LEDs devices suffered from the issues of low light extraction, narrow luminous angle and poor thermal performance. In this paper, the different textures were grown on the surface of Ce:YAG transparent ceramics by a simple mechanical grinding to enhance the light extraction, and the luminous angle of 4π was realized by the novel design of hexahedral ceramic tub ...
DOI:
10.1007/s10853-018-2874-3

15. Efficient seamline determination for UAV image mosaicking using edge detection

Author:
Nguyen, Truong Linh; Byun, Younggi; Han, Dongyeob; Huh, Jungwon
Source:
Remote sensing letters 2018 v.9 no.8 pp. 763-769
ISSN:
2150-7058
Subject:
lighting,   etc   ; algorithms; remote sensing; roads;     Show all 4 Subjects
Abstract:
... Image mosaicking of data from individual high-resolution unmanned aerial vehicle (UAV) images is required to obtain sufficient coverage over extensive roads. During the mosaicking process, seamlines may be generated due to differences in illumination or projection between individual images, or the presence of moving objects. This study presents an efficient seamline determination technique based o ...
DOI:
10.1080/2150704X.2018.1475772

16. Study on the Photoresponse Characteristics of Organic Light-Emitting Field-Effect Transistors C

Author:
Li, Dongwei; Hu, Yongsheng; Guo, Xiaoyang; Lv, Ying; Zhang, Nan; Lin, Jie; Liu, Xingyuan
Source:
Journal of physical chemistry 2018 v.122 no.27 pp. 15190-15197
ISSN:
1932-7455
Subject:
lighting,   etc   ; absorption; image analysis; transistors;     Show all 4 Subjects
Abstract:
... Organic photodetectors have attracted great attention because of their promising applications in the fields of imaging, optical communication, and biosensing. Although the optical and electrical performances of the organic light-emitting field effect transistors (OLEFETs) have improved substantially in the past decade, the photodetection property of the OLEFETs has rarely been studied. Here, we in ...
DOI:
10.1021/acs.jpcc.8b04320

17. Illuminating the Evolution of Iridescence

Author:
White, Thomas E.
Source:
Trends in ecology & evolution 2018 v.33 no.6 pp. 374-375
ISSN:
0169-5347
Subject:
lighting,   etc   ; color; geometry; insects; memory;     Show all 5 Subjects
Abstract:
... Iridescence, a change in hue with viewing or illumination geometry, is a common feature of colour patterns in nature, though its significance remains elusive. Recent studies of floral iridescence reveal its functional versatility in enhancing the detection and discrimination of resources by insect viewers, as well as augmenting higher-level processes of memory and perception. Coupled with a known ...
DOI:
10.1016/j.tree.2018.03.011

18. Ambipolar organic phototransistors based on 6,6′-dibromoindigo

Author:
Kim, Hyoeun; Kim, Gyoungsik; Song, Inho; Lee, Jungho; Abdullah, Hanum; Yang, Changduk; Oh, Joon Hak
Source:
RSC advances 2018 v.8 no.27 pp. 14747-14752
ISSN:
2046-2069
Subject:
lighting,   etc   ; electric potential; light intensity;     Show all 3 Subjects
Abstract:
... Ambipolar organic phototransistors were fabricated using a natural pigment 6,6′-dibromoindigo (6-BrIG) as the active channel. These phototransistors yielded significantly enhanced currents upon light illumination with photoresponsivities and external quantum efficiencies as high as 10.3 A W⁻¹ and 2437% for the n-channel, and 55.4 mA W⁻¹ and 13.1% for the p-channel, respectively. In addition, simpl ...
DOI:
10.1039/c8ra02346h

19. Synergistic Effect of Charge Generation and Separation in Epitaxially Grown BiOCl/Bi2S3 Nano-Heterostructure

Author:
Wang, Yanjie; Jin, Jiarui; Chu, Weiguo; Cahen, David; He, Tao
Source:
ACS applied materials & interfaces 2018 v.10 no.17 pp. 15304-15313
ISSN:
1944-8252
Subject:
lighting,   etc   ; absorption; nanorods; nanosheets; temperature;     Show all 5 Subjects
Abstract:
... Nano-heterostructures are widely used in the field of optoelectronic devices, and an optimal proportion usually exists between the constituents that make up the structures. Investigation on the mechanism underlying the optimal ratio is instructive for fabricating nano-heterostructures with high efficiency. In this work, BiOCl/Bi₂S₃ type-II nano-heterostructures with different Bi₂S₃/BiOCl ratios ha ...
DOI:
10.1021/acsami.8b03390

20. Effect of non-uniform illumination and temperature distribution on concentrating solar cell - A review

Author:
Li, Guiqiang; Xuan, Qingdong; Pei, Gang; Su, Yuehong; Ji, Jie
Source:
Energy 2018 v.144 pp. 1119-1136
ISSN:
0360-5442
Subject:
lighting,   etc   ; researchers; solar cells; temperature;     Show all 4 Subjects
Abstract:
... Concentrated photovoltaic (CPV) technology as a typical PV application is becoming popular due to its advantages of high conversion efficiency and low cost etc. However an important issue for CPV technology is the non-uniformity on the illumination and the temperature which can finally influence the overall electrical efficiency of solar cells. This study presents the feature of the non-uniform il ...
DOI:
10.1016/j.energy.2017.12.067