A preparing method of a quantum dot film is provided. The method includes steps of: providing an electrode layer, the electrode layer including a plurality of strip electrodes spaced apart from each other; coating a quantum dot solution onto the electrode layer; supplying a driving voltage to the strip electrode to cause the quantum dots of the quantum dot solution to aggregate toward a region corresponding to the strip electrode; and curing an aggregated quantum dot solution to obtain the quantum dot film.

A display substrate includes: a backplane; a first electrode layer disposed on a side of the backplane; and a light-emitting layer disposed on a side of the first electrode layer away from the backplane. The light-emitting layer includes nanoparticles and a product that is obtained by an electrochemical reaction of electrochemically active groups contained in first organic ligands coordinated to the nanoparticles. The nanoparticles are cross-linked together through the product.

The present invention relates to a method for manufacturing a photovoltaic device comprising: forming a porous first conducting layer on one side of a porous insulating substrate, coating the first conducting layer with a layer of grains of a doped semiconducting material to form a structure, performing a first heat treatment of the structure to bond the grains to the first conducting layer, forming electrically insulating layers on surfaces of the first conducting layer, forming a second conducting layer on an opposite side of the porous insulating substrate, applying a charge conducting material onto the surfaces of the grains, inside pores of the first conducting layer, and inside pores of the insulating substrate, and electrically connecting the charge conducting material to the second conducting layer.

The embodiments of the present disclosure provide a method of fabricating a display backplate. The method of fabricating the display backplate may include forming a channel layer on a surface of a substrate. The channel layer may include a liquid storage portion, a plurality of pixel channels, and a plurality of moving electrodes. Each of the plurality of pixel channels may include a plurality of sub-pixel grooves. The method of fabricating the display backplate may further include printing ink droplets into the liquid storage portion and moving the ink droplets into the plurality of sub-pixel grooves by applying a moving voltage to the moving electrodes.

A ferroelectric enhanced solar cell, including a conductive substrate, and a hole blocking layer, a mesoporous nanocrystalline layer, a mesoporous spacer layer and a mesoporous back electrode sequentially deposited in that order on the conductive substrate. The mesopores of at least one of the mesoporous nanocrystalline layer, the mesoporous spacer layer and the mesoporous back electrode are filled with a photoactive material. At least one of the hole blocking layer, the mesoporous nanocrystalline layer and the mesoporous spacer layer includes a ferroelectric material or a ferroelectric nanocomposite.

The present invention relates to a photovoltaic device (10) comprising: a first conducting layer (16), a second conducting layer electrically insulated from the first conducting layer, a porous substrate (20) made of an insulating material arranged between the first and second conducting layers, a light absorbing layer (1) comprising a plurality of grains (2) of a doped semiconducting material disposed on the first conducting layer (16) so that the grains are in electrical and physical contact with the first conducting layer, and a charge conductor (3) made of a charge conducting material partly covering the grains and arranged to penetrate through the first conducting layer (16) and the porous substrate such that a plurality of continuous paths (22) of charge conducting material is formed from the surface of the grains (2) to the second conducting layer (18), wherein the first conducting layer (16) comprises a conducting material, an oxide layer (28) formed on the surface of conducting material, and an insulating coating (29) made of an insulating material deposited on the oxide layer (28) so that the oxide layer and the insulating coating together electrically insulate said paths (22) from the conducting material of the first conducting layer (16).

The present invention relates to a light absorbing layer (1a) for a photovoltaic device, comprising a plurality of grains (2) of a doped semiconducting material and a charge conductor (3) made of a charge conducting material in physical contact with the grains. The grains are partly covered with the charge conductor (3) so that a plurality of junctions (4) are formed between the grains and the charge conductor. The present invention also relates to a photovoltaic device comprising the light absorbing layer (1a).

The present disclosure provides a method for encapsulating an organic light-emitting diode (OLED) capsule structure, comprising the operations of: providing a non-polar layered conductive polymer having a plurality of chemical bonds on a surface thereof; capturing a plurality of organic electroluminescent molecules of an organic electroluminescent substance by the plurality of chemical bonds of the non-polar layered conductive polymer; and performing capsule encapsulation of the non-polar layered conductive polymer having the captured plurality of organic electroluminescent molecules. The present disclosure also provides a method for forming an OLED light-emitting layer, and an OLED capsule structure.

According to the disclosure, a method for producing an organic component is provided. The method includes providing a carrier substrate; forming an electrically conductive layer on or above the carrier substrate; applying an electrical potential to the electrically conductive layer; and forming at least one organic, functional layer for forming the organic component on or above the electrically conductive layer at least partly during the process of applying the electrical potential to the electrically conductive layer.

Electropolymerized polymer or copolymer films on a conducting substrate (e.g., graphene) and methods of making such films. The films may be part of multilayer structures. The films can be formed by anodic or cathodic electropolymerization of monomers. The films and structures (e.g., multilayer structures) can be used in devices such as, for example, electrochromic devices, electrical-energy storage devices, photo-voltaic devices, field-effect transistor devices, electrical devices, electronic devices, energy-generation devices, and microfluidic devices.