摘要:
An illustrative solar cell may include an electron conductor, an absorber, a hole conductor, and one or more other layers that help reduce interfacial charge recombination within the solar cell for improved solar cell efficiency. In one example, an electron inhibiting/hole transporting layer is provided that blocks or at least substantially inhibits movement of electrons that may otherwise move from within the absorber and/or electron conductor into the hole conductor of the solar cell, while permitting holes to travel from the absorber to the hole conductor. In some cases, the electron inhibiting/hole transporting layer may be transparent or substantially transparent to incident light so that the incident light may reach the absorber material.
摘要:
An illustrative solar cell may include an electron conductor, an absorber, a hole conductor, and one or more other layers that help reduce interfacial charge recombination within the solar cell for improved solar cell efficiency. In one example, an electron inhibiting/hole transporting layer is provided that blocks or at least substantially inhibits movement of electrons that may otherwise move from within the absorber and/or electron conductor into the hole conductor of the solar cell, while permitting holes to travel from the absorber to the hole conductor. In some cases, the electron inhibiting/hole transporting layer may be transparent or substantially transparent to incident light so that the incident light may reach the absorber material.
摘要:
Solar cells and methods for manufacturing solar cells and/or components or layers thereof are disclosed. An example method for manufacturing a multi-bandgap quantum dot layer for use in a solar cell may include providing a first precursor compound, providing a second precursor compound, and combining a portion of the first precursor compound with a portion of the second precursor compound to form a multi-bandgap quantum dot layer that includes a plurality of quantum dots that differ in bandgap.
摘要:
Quantum dot solar cells with enhanced efficiency are disclosed. An example solar cell includes an electron conductor layer, a quantum dot layer and a hole conductor layer. The electron conductor layer may include a plurality of nanoparticles having an average outer dimension that is greater than about 25 nanometers. The hole conductor layer may include an electrolytic salt, and/or a low surface tension solvent, as desired.
摘要:
Disclosed are solar cells and methods for making solar cells. Also disclosed are counter electrodes for solar cells including dye-sensitized and/or nanocrystal-sensitized solar cells. An example counter electrode for a solar cell may include a substrate, a microstructured template disposed on the substrate, and a layer of catalytic material disposed on the microstructured template.
摘要:
Photovoltaic cells and methods for manufacturing photovoltaic cells. An example photovoltaic cell may include an electron conductor, a hole conductor and an active region situated therebetween. The electron conductor may include a nanowire array and a sheath disposed over the nanowire array. The nanowire array may include a material having an electron mobility that is greater than the electron mobility of the sheath. The sheath may have a density of states that is greater than the density of states of the nanowire array.
摘要:
A solar cell includes an electron conductor, a plurality of quantum dots on a surface of the electron conductor forming a quantum dot layer, and a supplemental light-absorbing material in one or more gaps in the quantum dot layer. The supplemental light-absorbing material is capable of absorbing light that passes through the one or more gaps in the quantum dot layer and converting the absorbed light into holes and electrons. The supplemental light-absorbing material may also inhibit a hole conductor from coming into contact with the electron conductor. The supplemental light-absorbing material could include one or more polymers, semiconductors, fluorophores, metal particles, nanowires, nanotubes, and nanoparticles. The supplemental light-absorbing material could also include one or more supplementary quantum dots attached to the electron conductor through one or more linkers, where electrons generated by the one or more supplementary quantum dots are transferred to the electron conductor through the one or more linkers.