We demonstrate that an optimized layer-by-layer organic photovoltaic can effectively improve the photophysical properties of the device, resulting in a conversion efficiency of 16.21%, surpassing the bulk heterojunction counterpart.
The photovoltaic effect is a process that generates voltage or electric current in a photovoltaic cell when it is exposed to sunlight.These solar cells are composed of two different types of semiconductors—a p-type and an n-type—that are joined together to create a p-n junction joining these two types of semiconductors, an electric field is formed in the region of the
Multilayer photoconductive compositions have been formulated in the past, for xerographic application, using porphyrinic compounds overlayered with a charge-transport layer, as disclosed, for example, in U.S. Pat. Nos. 3,895,944 and 3,992,205. However, such charge-transport layers in the U.S. Pat. No. 3,895,944 patent have required the use of binders, as well as sensitizers,
The multilayer MoS 2 shows dominant p-type behavior under dark conditions while its shows dominant n-type conduction under light illumination. In addition, this MoS 2
Efficient and stable perovskite tandem solar cells are demonstrated by incorporating novel conductive cross-linkable interfacial layer. The resulting devices afford a
Organic photovoltaic (OPV) cells, also known as organic solar cells, are a type of solar cell that converts sunlight into electricity using organic materials such as polymers and small molecules. 83,84 These materials are carbon-based and can be synthesized in a laboratory, unlike inorganic materials like silicon that require extensive mining and processing. 84,85 OPV
Photoconductive atomic force microscopy (PC-AFM) is a variant of atomic force microscopy that measures photoconductivity in addition to surface forces. Multi-layer photovoltaic cells have gained popularity since mid 1980s. At the time, research was primarily focused on single-layer photovoltaic (PV) devices between two electrodes, in which PV properties rely heavily on the
A novel multilayer, organic composition, a photovoltaic element fabricated therefrom having enhanced conversion efficiencies, and their use to generate power, are disclosed. Compounds with generally planar polycyclic nuclei such as organic photoconductive dyes comprise the several layers of the composition.
Molecular photon upconversion via triplet–triplet annihilation (TTA-UC) is an intriguing strategy to increase solar cell efficiencies and surpass the Shockley–Quiesser (SQ) limit. In this Perspective, we recount our group''s efforts to harness TTA-UC by directly incorporating metal ion linked multilayers of acceptor and sensitizer
These results demonstrate the potential application of a single multilayer MoS 2 sheet in optoelectronics, such as light-emitting diodes (LEDs), field-effect photovoltaic cells and photodetectors.
Molecular photon upconversion via triplet–triplet annihilation (TTA-UC) is an intriguing strategy to increase solar cell efficiencies and surpass the Shockley–Quiesser (SQ)
In the field of organic photovoltaic cells (OPVs), ternary planar heterojunction allows widening absorption range. Optimization of the energy levels at the organic interfaces is the first task to achieve in order to obtain OPVs with high efficiency. In ternary OPVs, carrier mobility, charge transfer and presence of energy transfer
A solar cell, also known as a photovoltaic cell (PV cell), is an electronic device that converts the energy of light directly into electricity by means of the photovoltaic effect. [1] It is a form of photoelectric cell, a device whose electrical characteristics (such as current, voltage, or resistance) vary when it is exposed to light. Individual solar cell devices are often the electrical
Herein, we demonstrate highly thermally stable OSCs using multicomponent photoactive layer synthesized via a facile one-pot polymerization, which show the advantages
The multilayer MoS 2 shows dominant p-type behavior under dark conditions while its shows dominant n-type conduction under light illumination. In addition, this MoS 2 phototransistor shows an evident photovoltaic effect.
Here we demonstrate a photovoltaic-nanocell enhancement strategy, which overcomes the trade-off and enables high-performance organic phototransistors at a level beyond large-scale integration
When illuminated, the reduced cell resistance causes Q 1 to be biased on. Figure 20-15 shows a photoconductive cell used with an op-amp Schmitt trigger circuit. When the cell resistance is low (cell illuminated), the voltage across R 1 is higher than the upper trigger point (UTP) for the Schmitt. Consequently, the op-amp output is tow (negative
We demonstrate that an optimized layer-by-layer organic photovoltaic can effectively improve the photophysical properties of the device, resulting in a conversion
In the field of organic photovoltaic cells (OPVs), ternary planar heterojunction allows widening absorption range. Optimization of the energy levels at the organic interfaces is
Here we demonstrate a photovoltaic-nanocell enhancement strategy, which overcomes the trade-off and enables high-performance organic phototransistors at a level
Thus, there are tremendous opportunities to develop 2D material–based photovoltaic solar cells by improving the synthesis of high-quality large-scale layered
This paper presents the development of the MoO3/Au/Ag/MoO3 transparent electrode, which is based on the wide-band-gap perovskite solar cell. We show that using a 1
Thus, there are tremendous opportunities to develop 2D material–based photovoltaic solar cells by improving the synthesis of high-quality large-scale layered semiconductors, designing heterostructure of 2D materials for high absorption of solar spectrum and engineering the solar cell devices for better performance.
Herein, we demonstrate highly thermally stable OSCs using multicomponent photoactive layer synthesized via a facile one-pot polymerization, which show the advantages of low synthetic cost and...
Efficient and stable perovskite tandem solar cells are demonstrated by incorporating novel conductive cross-linkable interfacial layer. The resulting devices afford a power conversion efficiency (PCE) up to 18.69%, which represents the highest PCE among all reported monolithic all-perovskite tandem cells.
InP and InZnP colloidal quantum dots (QDs) are promising materials for application in light-emitting devices, transistors, photovoltaics, and photocatalytic cells. In addition to possessing an appropriate bandgap, high absorption coefficient, and high bulk carrier mobilities, the intrinsic toxicity of InP and InZnP is much lower than for competing QDs that contain Cd or
The first HgZnTe photoconductive detectors were fabricated by Z. Nowak and M.E. Ejsmont in the early 1970s (see Ref. in Rogalski []).Then, it was shown that Hg 0.885 Zn 0.15 Te can be used as a material for high-quality ambient-temperature 10.6 μm photoconductors with detectivity around 10 8 cm Hz 1/2 W −1 [].The research group at Santa Barbara Research Center has developed
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