Organic energy-harvesting devices achieving power conversion efficiencies over 20% under ambient indoor lighting

2019 ◽  
Vol 7 (35) ◽  
pp. 20187-20192 ◽  
Author(s):  
Ryota Arai ◽  
Seiichi Furukawa ◽  
Narumi Sato ◽  
Takuma Yasuda
Keyword(s):  
Energy Harvesting ◽  
Small Molecule ◽  
Organic Photovoltaics ◽  
Power Conversion ◽  
Light Energy ◽  
Solution Processed ◽  
Dim Light ◽  
Indoor Lighting ◽  
Energy Harvesting Devices ◽  
Conversion Efficiencies

The ability of solution-processed organic photovoltaics (OPVs) based on new small-molecule semiconductors, 1DTP-ID and 2DTP-ID, for indoor dim-light energy harvesting is reported.

A privileged ternary blend enabling non-fullerene organic photovoltaics with over 14% efficiency

2020 ◽  
Vol 8 (43) ◽  
pp. 15135-15141
Author(s):  
Jing Yan ◽  
Yuan-Qiu-Qiang Yi ◽  
Jianqi Zhang ◽  
Huanran Feng ◽  
Yanfeng Ma ◽  
...  
Keyword(s):  
Small Molecule ◽  
Organic Photovoltaics ◽  
Power Conversion ◽  
Ternary Blend ◽  
Conversion Efficiencies

Two non-fullerene small molecule acceptors, NT-4F and NT-4Cl, were designed and synthesized. Power conversion efficiencies of 11.44% and 14.55% were achieved for NT-4Cl-based binary and ternary devices, respectively.

Indoor-light-energy-harvesting dye-sensitized photo-rechargeable battery

2020 ◽  
Vol 13 (5) ◽  
pp. 1473-1480 ◽  
Author(s):  
Byung-Man Kim ◽  
Myeong-Hee Lee ◽  
Vijayan Sobhana Dilimon ◽  
Jeong Soo Kim ◽  
Jung Seung Nam ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Light Harvesting ◽  
Light Energy ◽  
Rechargeable Battery ◽  
Dye Sensitized ◽  
Dim Light ◽  
Iot Devices ◽  
Sun Light

Dye-sensitized photo-rechargeable battery (DSPB) harvests and stores dim light efficiently, realizing indoor-light-harvesting battery to operate IoT devices successfully without sun light.

Regioselectivity enhancement in synthesis of [70]fullerene derivatives by introduction of a branched structure

2019 ◽  
Vol 17 (10) ◽  
pp. 2629-2634
Author(s):  
Fukashi Matsumoto ◽  
Shuhei Sumino ◽  
Toshiyuki Iwai ◽  
Takatoshi Ito
Keyword(s):  
Organic Photovoltaics ◽  
Power Conversion ◽  
Fullerene Derivatives ◽  
Branched Structure ◽  
Conversion Efficiencies

Regio-purity in [70]fullerene derivatives is of great importance to improve the power conversion efficiencies of organic photovoltaics.

Ternary organic solar cells: using molecular donor or acceptor third components to increase open circuit voltage

2019 ◽  
Vol 43 (26) ◽  
pp. 10442-10448 ◽  
Author(s):  
Sergey V. Dayneko ◽  
Arthur D. Hendsbee ◽  
Jonathan R. Cann ◽  
Clément Cabanetos ◽  
Gregory C. Welch
Keyword(s):  
Solar Cells ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Open Circuit ◽  
Molecular Semiconductors ◽  
Conversion Efficiencies ◽  
Open Circuit Voltages

The addition of donor or acceptor type molecular semiconductors to PBDB-T:PC60BM based organic photovoltaics leads to increases in open circuit-voltages and overall power conversion efficiencies.

Quantum-structured III-V energy harvesting devices: pathways to ultra-high conversion efficiencies

2012 ◽  
Author(s):  
Roger E. Welser ◽  
Ashok K. Sood ◽  
Nibir K. Dhar ◽  
Priyalal S. Wijewarnasuriya
Keyword(s):  
Energy Harvesting ◽  
High Conversion ◽  
Energy Harvesting Devices ◽  
Conversion Efficiencies

Recent progress in non-fullerene small molecule acceptors in organic solar cells (OSCs)

2017 ◽  
Vol 5 (6) ◽  
pp. 1275-1302 ◽  
Author(s):  
Wangqiao Chen ◽  
Qichun Zhang
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Recent Progress ◽  
Power Conversion ◽  
Conversion Efficiencies

The power conversion efficiencies (PCEs) of non-fullerene small molecule acceptors based on different donors have been compared and summarized.

Large active layer thickness toleration of high-efficiency small molecule solar cells

2015 ◽  
Vol 3 (44) ◽  
pp. 22274-22279 ◽  
Author(s):  
Qian Zhang ◽  
Bin Kan ◽  
Xiangjian Wan ◽  
Hua Zhang ◽  
Feng Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Layer Thickness ◽  
Active Layer ◽  
Small Molecule ◽  
High Efficiency ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Thickness Dependence ◽  
Active Layer Thickness ◽  
Conversion Efficiencies

The thickness dependence of the photovoltaic performance for devices based on the small molecule DR3TSBDT:PC71BM was systematically investigated and the power conversion efficiencies are found to be relatively insensitive to the thickness.

Nonfullerene Acceptors for Organic Photovoltaics: From Conformation Effect to Power Conversion Efficiencies Prediction

Solar RRL ◽  
2019 ◽  
Vol 3 (11) ◽  
pp. 1900258 ◽  
Author(s):  
Ming-Yue Sui ◽  
Zi-Rui Yang ◽  
Yun Geng ◽  
Guang-Yan Sun ◽  
LiHong Hu ◽  
...  
Keyword(s):  
Organic Photovoltaics ◽  
Power Conversion ◽  
Conversion Efficiencies

scholarly journals Numerical Analysis of Optical Absorption Effect in Nonhalogen Solution-Processed, Inverted Small Molecule Solar Cell

Crystals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 113
Author(s):  
Ming-Yi Lin ◽  
Chun-Yu Lee
Keyword(s):  
Small Molecule ◽  
Power Conversion ◽  
Organic Photovoltaic ◽  
Absorption Effect ◽  
Solution Processed ◽  
Solvent Vapor ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing ◽  
Halogen Free ◽  
Photovoltaic Solar Cells

Inverted solution-processed SMPV1:PC71BM small molecule organic photovoltaic solar cells (SM-OPVs) were fabricated. The power conversion efficiency (PCE) of halogen-free SM-OPVs reached around 5.07%. The absorption spectra at different device thicknesses were simulated by software Fluxim SETFOS 5.0, and compared with the experimental results. To further enhance the performance of halogen-free SM-OPVs, the interface between the active layer and the electrode of the optimized device was treated with the solvent vapor annealing (SVA) process, improving the PCE of the inverted halogen-free SM-OPV to 7.21%.

Simple organic donors based on halogenated oligothiophenes for all small molecule solar cells with efficiency over 11%

2020 ◽  
Vol 8 (12) ◽  
pp. 5843-5847 ◽  
Author(s):  
Tainan Duan ◽  
Jie Gao ◽  
Tongle Xu ◽  
Zhipeng Kan ◽  
Wenjing Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Power Conversion ◽  
Conversion Efficiencies

A set of centrally halogenated oligothiophenes were developed for organic solar cells. The devices with a chlorinated donor (2Cl7T) achieved power conversion efficiencies (PCEs) of up to ca. 11.5% (vs. ca. 2.5% for non-halogenated donor DRCN7T).

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