A polymer-based optoelectronic interface comprises an elastomeric substrate (10) and a plurality of discrete photovoltaic pixel elements (20) disposed on top of the substrate. Each pixel element comprises at least one active layer comprising a semiconducting polymer or polymer mixture. The pixel elements are excitable by light to generate an electric signal via a photovoltaic process. For mechanically protecting the pixel elements, an elastomeric encapsulation layer (30) can be disposed on top of the substrate, the encapsulation layer defining access openings (31) for the pixel elements (20). Pillar-like structures (40) can be disposed on the pixel elements. Methods for fabricating such an optoelectronic interface are also disclosed. The optoelectronic interface can be used as a retinal prosthesis.

A photovoltaic panel (1) is provided, comprising in the order named, a first electrically conductive layer (10), a photo-voltaic layer (20) of a perovskite photovoltaic material, a second electrically conductive layer (30), and a protective coating (40) that at least forms a barrier against moisture. The first electrically conductive layer (10) is partitioned along first partitioning lines (L11, L12) extending in a first direction (D1). The second electrically conductive layer (30) and the photovoltaic layer (20) are partitioned along second partitioning lines (L21, L22) extending in the first direction (D1) and along third partitioning lines (L31, L32) extending in a second direction (D2) different from the first direction (D11). The first and the second partitioning lines alternate each other and a space (50) is defined by the first and third partitioning lines that is filled with a protective filler material forming a barrier against moisture, therewith defining photovoltaic cells encapsulated by the protective material of the coating and the protective filler material.

To provide a photoelectric conversion element, including a first substrate, a first transparent electrode disposed on the first substrate, a hole-blocking layer disposed on the first transparent electrode, an electron-transporting layer that is disposed on the hole-blocking layer and includes an electron-transporting semiconductor on a surface of which a photosensitizing compound is adsorbed, a hole-transporting layer that is connected to the electron-transporting layer and includes a hole-transporting material, and a second electrode disposed on the hole-transporting layer, wherein the photoelectric conversion element includes an output extraction terminal part configured to extract electricity out from the photoelectric conversion element, and the output extraction terminal part is formed with a plurality of micropores piercing through the hole-blocking layer.

Disclosures of the present invention mainly describe a method for manufacturing perovskite solar cell module. At first, a laser scribing is adopted for forming multi transparent conductive films (TCFs) on a transparent substrate. Subsequently, by using a first mask, multi HTLs, active layers, and ETLs are sequentially formed on the TCFs. Consequently, by the use of a second make, each of the ETLs is formed with an electrically connecting layer thereon, such that a perovskite solar cell module comprising a plurality of solar cell units is hence completed on the transparent substrate. It is worth explaining that, during the whole manufacturing process, each of the solar cell units is prevented from receiving bad influences that are provided by laser scribing or manufacture environment, such that each of the solar cell units is able to exhibit outstanding photoelectric conversion efficiency.

A self-powered module for gesture recognition is presented that utilizes small, low-cost photodiodes for both energy harvesting and gesture sensing. Operating in the photovoltaic mode, photodiodes harvest energy from ambient light. In the meantime, the instantaneously harvested power from individual photodiodes is monitored and exploited as a clue for sensing finger gestures in proximity. Harvested power from all photodiodes is aggregated to drive the whole gesture-recognition module including a micro-controller running the recognition algorithm. A robust, lightweight algorithm is provided to recognize finger gestures in the presence of ambient light fluctuations. Two prototypes are fabricated to facilitate user's interaction with smart glasses and smart watches.

Systems and devices can include a first optical element and a second optical element, the first and second optical elements transparent to visible light; and a photovoltaic element residing between the first optical element and the second optical element, the photovoltaic element transparent to visible light, the photovoltaic element to generate electricity based on the absorption of ultraviolet (UV) and near-infrared (NIR) light. The photovoltaic element can include a conductive element to conduct electricity generated from the absorption of UV and NIR light.

Disclosed is a bus stop using a large-scale perovskite solar cell in which a perovskite solar cell is prepared using a hybrid structure including a graphene-carbon nanotube. The bus stop includes a body unit fixed to the ground to maintain the overall shape, a solar cell unit for producing electrical energy from sunlight, and an energy storage system (ESS) for storing the electrical energy produced by the solar cell part.

A hybrid junction solar light sensitive photodiode includes at least one inorganic p-n junction and at least one organic semiconductor p-n junction (pnpn) in series. The photoresponse properties of the photodiode is controlled using an inorganic layer and an organic layer. The photoactive layer is an organic semiconducting material having a mobility higher than 0.5 cm.sup.2/Vs. The metal oxide layer is an oxide semiconductor comprising of ternary oxides.

The present invention concerns a method for deposition layers of an electronic device by slot-die deposition. Preferably, the method comprises slot-die deposition of formulation for providing compact inorganic layers, mesoporous inorganic layers, a carbon layer and a layer comprising organic-inorganic perovskite. In a preferred embodiment, the layers of a monolithic perovskite solar cell are entirely deposited by slot-die deposition. The method renders the manufacturing process of such electronic devices more efficient.

An oxide sintered body containing indium, hafnium, tantalum, and oxygen as constituent elements, in which when indium, hafnium, and tantalum are designated as In, Hf, and Ta, respectively, the atomic ratio of Hf/(In+Hf+Ta) is equal to 0.002 to 0.030, and the atomic ratio of Ta/(In+Hf+Ta) is equal to 0.0002 to 0.013.