organic acceptor
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Two-Photon Absorption Enhancement for Organic Acceptor Molecules with QD Antennas

Nanoscale ◽  
2021 ◽  
Author(s):  
Sina Roth ◽  
Phuong Thao Trinh ◽  
Josef Wachtveitl
Keyword(s):  
Optical Spectroscopy ◽  
Hybrid System ◽  
Photon Absorption ◽  
Absorption Enhancement ◽  
Time Resolved ◽  
Two Photon Absorption ◽  
Organic Hybrid ◽  
Two Photon ◽  
Organic Acceptor ◽  
Acceptor Molecules

The photophysics of an inorganic/organic hybrid system was studied by time-resolved optical spectroscopy, focusing on the goal of increasing the two-photon efficiency of photoresponsive systems. The hybrid system consists of...

scholarly journals Hot carrier extraction in CH3NH3PbI3 unveiled by pump-push-probe spectroscopy

2019 ◽  
Vol 5 (11) ◽  
pp. eaax3620 ◽  
Author(s):  
Swee Sien Lim ◽  
David Giovanni ◽  
Qiannan Zhang ◽  
Ankur Solanki ◽  
Nur Fadilah Jamaludin ◽  
...  
Keyword(s):  
Excited State ◽  
Excited State Absorption ◽  
Hot Carrier ◽  
New Class ◽  
Lowest Unoccupied Molecular Orbital ◽  
Organic Acceptor ◽  
Energy States ◽  
Transient Spectroscopy ◽  
Probe Spectroscopy ◽  
Carrier Extraction

Halide perovskites are promising materials for development in hot carrier (HC) solar cells, where the excess energy of above-bandgap photons is harvested before being wasted as heat to enhance device efficiency. Presently, HC separation and transfer processes at higher-energy states remain poorly understood. Here, we investigate the excited state dynamics in CH3NH3PbI3 using pump-push-probe spectroscopy. It has its intrinsic advantages for studying these dynamics over conventional transient spectroscopy, albeit complementary to one another. By exploiting the broad excited-state absorption characteristics, our findings reveal the transfer of HCs from these higher-energy states into bathophenanthroline (bphen), an energy selective organic acceptor far above perovskite’s band edges. Complete HC extraction is realized only after overcoming the interfacial barrier formed at the heterojunction, estimated to be between 1.01 and 1.08 eV above bphen’s lowest unoccupied molecular orbital level. The insights gained here are essential for the development of a new class of optoelectronics.

Two-Dimensional WSe2/Organic Acceptor Hybrid Nonvolatile Memory Devices Based on Interface Charge Trapping

2019 ◽  
Vol 11 (37) ◽  
pp. 34424-34429 ◽  
Author(s):  
Haining Liu ◽  
Menghua Cui ◽  
Chunhe Dang ◽  
Wen Wen ◽  
Xinsheng Wang ◽  
...  
Keyword(s):  
Nonvolatile Memory ◽  
Charge Trapping ◽  
Memory Devices ◽  
Two Dimensional ◽  
Interface Charge ◽  
Nonvolatile Memory Devices ◽  
Organic Acceptor

scholarly journals Fused Benzothiadiazole: A Building Block for n‐Type Organic Acceptor to Achieve High‐Performance Organic Solar Cells

2019 ◽  
Vol 31 (17) ◽  
pp. 1807577 ◽  
Author(s):  
Jun Yuan ◽  
Yunqiang Zhang ◽  
Liuyang Zhou ◽  
Chujun Zhang ◽  
Tsz‐Ki Lau ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Building Block ◽  
High Performance ◽  
Organic Acceptor

scholarly journals Designing an Organic Acceptor with Unsymmetrical Structure Based on Rhodanine and Thiazolidine-2, 4-dione Units to Study the Structure–Property Relationship

2019 ◽  
Vol 35 (3) ◽  
pp. 257-267
Author(s):  
Yang YANG ◽  
◽  
Xiu JIANG ◽  
Xiaowei ZHAN ◽  
Xingguo CHEN ◽  
...  
Keyword(s):  
Structure Property ◽  
Unsymmetrical Structure ◽  
Property Relationship ◽  
Structure Property Relationship ◽  
Organic Acceptor

An unusual donor–acceptor system MnIIPc-TCNQ/F4-TCNQ and the properties of the mixed single crystals of metal phthalocyanines with organic acceptor molecules

2019 ◽  
Vol 48 (46) ◽  
pp. 17252-17257
Author(s):  
Olga Kataeva ◽  
Kirill Metlushka ◽  
Kamil Ivshin ◽  
Kristina Nikitina ◽  
Vladimir Alfonsov ◽  
...  
Keyword(s):  
Single Crystals ◽  
High Spin ◽  
Spin State ◽  
High Spin State ◽  
Radical Anions ◽  
Metal Phthalocyanines ◽  
Π Interactions ◽  
Donor Acceptor ◽  
Organic Acceptor ◽  
Acceptor Molecules

Single crystals of Mn(iii)Pc·2H2O with TCNQ/F4-TCNQ radical anions are stabilized via C–H⋯π interactions. Mn(iii) is in a high spin state.

scholarly journals Ternary polymer solar cells based-on two polymer donors with similar HOMO levels and an organic acceptor with absorption extending to 850 nm

2018 ◽  
Vol 62 ◽  
pp. 89-94 ◽  
Author(s):  
Lian Zhong ◽  
Yongxi Li ◽  
Haijun Bin ◽  
Ming Zhang ◽  
He Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Organic Acceptor ◽  
Ternary Polymer

26-3: Difference in Optical and Hole-injection Properties between Organic Material/Molybdenum Oxide Composite (OMOx) Layer and Hole-injection Layer with Organic Acceptor

2018 ◽  
Vol 49 (1) ◽  
pp. 336-339
Author(s):  
Harue Nakashima ◽  
Yusuke Takita ◽  
Naoaki Hashimoto ◽  
Shiho Nomura ◽  
Tsunenori Suzuki ◽  
...  
Keyword(s):  
Molybdenum Oxide ◽  
Organic Material ◽  
Hole Injection ◽  
Oxide Composite ◽  
Hole Injection Layer ◽  
Organic Acceptor

Theoretical design of three-dimensional non-fullerene acceptor materials based on an arylenediimide unit towards high efficiency organic solar cells

2017 ◽  
Vol 41 (10) ◽  
pp. 3857-3864 ◽  
Author(s):  
Qing-Qing Pan ◽  
Shuang-Bao Li ◽  
Yong Wu ◽  
Ji Zhang ◽  
Hai-Bin Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Three Dimensional ◽  
Tddft Calculations ◽  
Theoretical Design ◽  
Organic Acceptor ◽  
Dft And Tddft Calculations

DFT and TDDFT calculations were performed to search for high-performance non-fullerene organic acceptor materials in organic solar cells.

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