An organic photoelectronic device may include a photoelectronic conversion layer between a first electrode and a second electrode and a buffer layer on the photoelectronic conversion layer. The photoelectronic conversion layer may be between a first electrode and a second electrode, and the buffer layer may be between the first electrode and the photoelectronic conversion layer. The photoelectronic conversion layer may include at least a first light absorbing material and a second light absorbing material configured to provide a p-n junction. The buffer layer may include the first light absorbing material and a non-absorbing material associated with a visible wavelength spectrum of light. The non-absorbing material may have a HOMO energy level of about 5.4 eV to about 5.8 eV. The non-absorbing material may have an energy bandgap of greater than or equal to about 2.8 eV.

The present technology relates to, in a photoelectric conversion element using a photoelectric conversion film, the photoelectric conversion element and a method of manufacturing the same, a solid state image sensor, an electronic device, and a solar cell, for enabling improvement of quantum efficiency. The photoelectric conversion element includes two electrodes constituting an anode and a cathode, and a photoelectric conversion layer arranged between the two electrodes, and at least one electrode side of the two electrodes is doped with an impurity at impurity density of 1e16/cm3 or more in the photoelectric conversion layer. The present technology can be applied to, for example, a solid state image sensor, an electronic device, a solar cell and the like.

The present disclosure provides a photoelectric conversion device including a semiconductor substrate including a signal output portion, an electrode, and an organic compound layer disposed between the signal output portion and the electrode and including a photoelectric conversion layer, wherein the signal output portion is in contact with the organic compound layer.

Organic photoelectric conversion element has a first electrode, a photoelectric conversion layer, and a second electrode. The photoelectric conversion layer has a first organic layer that contains a first organic semiconductor containing principally a p-type organic semiconductor, a second organic layer that contains a second organic semiconductor containing principally an n-type organic semiconductor, and an intermediate layer that contains the first organic semiconductor and the second organic semiconductor. The second organic layer is disposed at a side of the second electrode relative to the first organic layer. The intermediate layer is between the first organic layer and the second organic layer and reaches each of these layers. The thickness of the second organic layer is greater than the sum of the thicknesses of the first organic layer and intermediate layer.

An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer, wherein the organic layer includes the compound of Formula 1: ##STR00001##
When the compound of Formula 1 is used in an organic light-emitting device, the organic light-emitting device may have high-efficiency characteristics as compared to a case where a compound of the related art is used, resulting particularly in excellent lifespan improvement effects, and accordingly, significantly improved lifespan.

Bandgap-tunable perovskite compositions are provided having the formula CsPb(A.sub.xB.sub.y).sub.3, wherein A and B are each a halogen. The mixed halide perovskite composition has a morphology which suppresses phase segregation to stabilize a tuned bandgap of the mixed halide perovskite composition. For example, the perovskite may be in the form of nanocrystals embedded in a non-perovskite matrix, which, for example, may have the formula Cs.sub.4Pb(A.sub.xB.sub.y).sub.6, wherein A and B are each a halogen. Solar cells and light-emitting diodes comprising the mixed perovskite compositions are also provided.

The present disclosure provides a photovoltaic device and a method for forming the photovoltaic device. The photovoltaic device comprises a first solar cell structure having a photon absorbing layer comprising an organic material having a first bandgap; and a second solar cell structure having a photon absorbing layer comprising a material that has a Perovskite structure and having a second bandgap. The first and second solar cell structures are positioned at least partially onto each other.

The present specification provides a photoactive layer including: an electron donor; and an electron acceptor, in which the electron donor includes: a single molecular material; and a polymer material, a content of the electron donor is higher than a content of the electron acceptor, and in the electron donor, a content of the single molecular material is higher than a content of the polymer material, and an organic solar cell including the same.

The invention concerns a method of manufacturing a photovoltaic module comprising at least two electrically connected photovoltaic cells, each photovoltaic cell (4.sub.i) being multi-layered structure disposed on a substrate (6) having down-web direction (X) and a cross-web direction (Y). The method comprises providing a plurality of spaced-apart first electrode strips (8.sub.i) over the substrate (6), each first electrode strip extending along the cross-web direction (Y), and providing, over the first electrode strips layer, at least one insulating strip (14a, 14b) of an insulator material extending along the down-web direction (X), each insulating strip defining a connecting area and an active area. A functional stack (20) comprising a full web coated layer of photoactive semiconductor material is formed over the first layer and within the active area. A plurality of spaced-apart second electrode strips (28.sub.i) are provided within the active area, each second electrode strip extending along the cross-web direction (Y), so as to form photovoltaic cells and a photovoltaic module is formed by electrically connecting at least two adjacent photovoltaic cells, by extending over the insulating strips (14a, 14b) electrical connection patterns to electrically connect, within the connecting area(s), the second electrode strip of an photovoltaic cell to the first electrode strip of an adjacent photovoltaic cell.

A polymer solar cell includes a photoactive layer, a cathode electrode, and an anode electrode. The photoactive layer includes a polymer layer and a carbon nanotube layer. The polymer layer includes a first polymer surface and a second polymer surface opposite to the first polymer surface. A portion of the carbon nanotube layer is embedded in the polymer layer, and another portion of the carbon nanotube layer is exposed from the polymer layer. The cathode electrode is located a surface of the carbon nanotube layer away from the polymer layer. The anode electrode is located on the first polymer surface and spaced apart from the carbon nanotube layer. The entire second polymer surface is exposed.