An organic x-ray detector and a method of making the organic x-ray detector are disclosed. The x-ray detector includes a TFT array disposed on a substrate, an organic photodiode layer disposed on the TFT array, a barrier layer disposed on the photodiode layer, and a scintillator layer disposed on the barrier layer, such that the barrier layer includes at least one inorganic material.

A display device having a photosensing function is provided. A display device having a biometric authentication function typified by fingerprint authentication is provided. A display device having a touch panel function and a biometric authentication function is provided. The display device includes a first substrate, a light guide plate, a first light-emitting element, a second light-emitting element, and a light-receiving element. The first substrate and the light guide plate are provided to face each other. The first light-emitting element and the light-receiving element are provided between the first substrate and the light guide plate. The first light-emitting element has a function of emitting first light through the light guide plate. The second light-emitting element has a function of emitting second light to a side surface of the light guide plate. The light-receiving element has functions of receiving the first light and converting the first light into an electric signal and functions of receiving the second light and converting the second light into an electric signal. The first light includes visible light, and the second light includes infrared light.

A light emitting component is disclosed. In an embodiment a light-emitting device includes at least one active layer stack configured to generate light, a first electrode electrically contacting the at least one active layer stack, a second electrode electrically contacting the at least one active layer stack and at least one light-emitting face for emitting light. The device further includes a first contact structure electrically conductively connected to the first electrode and a second contact structure electrically conductively connected to the second electrode, wherein the first contact structure laterally surrounds a major part of the at least one light-emitting face and a major part of the second contact structure, and wherein the second contact structure laterally surrounds a major part of the at least one light-emitting face.

A light emitting device and method of fabricating the same using a wafer level package process are disclosed. The light emitting device has improved heat dissipation to prevent damage by heat, thereby achieving improvement in reliability and luminous efficacy. In addition, the light emitting device has a small difference in coefficients of thermal expansion and thus can reduce stress applied to a light emitting structure to prevent damage to the light emitting structure, thereby achieving improvement in reliability and luminous efficacy.

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.

A photovoltaic device includes one or more features that taken alone or in combination enhance its efficiency. Some embodiments may comprise a tandem solar device in which a top PV cell is fabricated upon a front transparent substrate, that also serves as the top encapsulating substance. The top PV cell including the front encapsulating substance is then bonded (e.g., using adhesive) to a bottom PV cell in order to complete the tandem device. Using the same transparent, insulating element as both front encapsulating substance and a substrate for fabricating the top PV cell, obviates to the need to provide a separate structure (with resulting interfaces) to perform the latter role. For tandem and non-tandem PV devices, a Through-Substrate-Via (TSV) structure may extend through an insulating substrate in order to provide contact with an opposite side (e.g., back electrode). Embodiments may find particular use in fabricating shingled perovskite photovoltaic solar cells.

An energy harvesting system for generating electrical energy, includes a first substrate, a perovskite layer formed on the first substrate, a charge transport layer disposed on the perovskite layer, and the charge transport layer being configured to slide over the perovskite layer, and a second substrate formed on the charge transport layer.

The present invention concerns a device for room temperature reverse-bias operation photo-detection. The device comprising:—a planar first electrode extending in a planar direction;—a second electrode positioned above the first electrode in a direction substantially perpendicular to said planar direction; and—an active region sandwiched between the first and second electrode. The active region consists of a light absorbing perovskite and wherein the light absorbing perovskite is in direct contact with at least one of the first and second electrodes.

This invention relates to a novel structure of photovoltaic devices (e.g. photovoltaic cells also called as solar cells) are provided. The cells are based on the micro or nano scaled structures which could not only increase the surface area but also have the capability of reducing the reflection and increasing the absorption of incident light. More specifically, the structures are based on 3D structure which are made of electric materials covering semiconductors, insulators, dielectric, polymer, and metallic type materials. By using such structures reflection loss of the light from the cell is significantly reduced, increasing the absorption, which results in increasing the conversion efficiency of the solar cell, and reducing the usage of material while increasing the flexibility of the solar cell. The structures can be also used in other optical devices wherein the reflection loss and absorption are required to enhance significantly improve the device performances.