Provided are a perovskite optoelectronic device containing an exciton buffer layer, and a method for manufacturing the same. The optoelectronic device of the present invention comprises: an exciton buffer layer in which a first electrode, a conductive layer disposed on the first electrode and comprising a conductive material, and a surface buffer layer containing fluorine-based material having lower surface energy than the conductive material are sequentially deposited; a photoactive layer disposed on the exciton buffer layer and containing a perovskite photoactive layer; and a second electrode disposed on the photoactive layer. Accordingly, a perovskite is formed with a combined FCC and BSS crystal structure in a nanoparticle photoactive layer. The present invention can also form a lamellar or layered structure in which an organic plane and an inorganic plane are alternatively deposited; and an exciton can be bound by the inorganic plane, thereby being capable of expressing high color purity.

A solar battery of the present disclosure includes a first electrode; a photoelectric conversion layer; an intermediate layer; and a second electrode that are arranged in this order. The photoelectric conversion layer contains a perovskite compound. The intermediate layer contains a heterocyclic compound, the heterocyclic compound contains one or more and three or less six-membered rings, and at least one of the six-membered rings has 1-position and 4-position each occupied by an element having a lone pair.

A solar battery of the present disclosure includes a first electrode; a photoelectric conversion layer; an intermediate layer; and a second electrode that are arranged in this order. The photoelectric conversion layer contains a perovskite compound. The intermediate layer contains a heterocyclic compound, the heterocyclic compound contains one or more and three or less six-membered rings, and at least one of the six-membered rings has 1-position and 4-position each occupied by an element having a lone pair.

A hybrid organic-inorganic solar cell is provided that includes a substrate, a transparent conductive oxide (TCO) layer deposited on the substrate, an n-type electron transport material (ETM) layer, a p-type hole transport material (HTM) layer, an i-type perovskite layer, and an electrode layer, where the substrate layers are arranged in an n-i-p stack, or a p-i-n stack, where the passivating barrier layer is disposed between the layers of the (i) perovskite and HTM, (ii) perovskite and ETM, (iii) perovskite and HTM, and perovskite and ETM, or (iv) TCO and ETM, and ETM and perovskite, and perovskite and HTM, or (v) substrate and TCO, and TCO and ETM, and ETM and perovskite, and perovskite layer and HTM, or (vi) a pair of ETM layers, or (vii) a pair of HTM layers.

A hybrid organic-inorganic solar cell is provided that includes a substrate, a transparent conductive oxide (TCO) layer deposited on the substrate, an n-type electron transport material (ETM) layer, a p-type hole transport material (HTM) layer, an i-type perovskite layer, and an electrode layer, where the substrate layers are arranged in an n-i-p stack, or a p-i-n stack, where the passivating barrier layer is disposed between the layers of the (i) perovskite and HTM, (ii) perovskite and ETM, (iii) perovskite and HTM, and perovskite and ETM, or (iv) TCO and ETM, and ETM and perovskite, and perovskite and HTM, or (v) substrate and TCO, and TCO and ETM, and ETM and perovskite, and perovskite layer and HTM, or (vi) a pair of ETM layers, or (vii) a pair of HTM layers.

A photoelectric conversion apparatus according to an embodiment includes a semiconductor substrate, a first electrode layer disposed on the semiconductor substrate, a second electrode layer disposed between the first electrode layer and the semiconductor substrate, an accumulation layer disposed between the first electrode layer and the second electrode layer and configured to accumulate signal electric charges generated by photoelectric conversion, an insulating layer disposed between the accumulation layer and the second electrode layer, a blocking layer disposed between the accumulation layer and the insulating layer and configured to prevent the signal electric charges in the accumulation layer from reaching the insulating layer, and a circuit unit disposed in the semiconductor substrate and connected to the second electrode layer to receive a signal based on the signal electric charges.

The present invention relates to an organic solar cell for a current-voltage test and a preparation method thereof. The disclosed organic solar cell for the current-voltage test comprises a substrate with a preset ITO pattern, wherein ITO on the substrate with the preset ITO pattern is used as the anode layer, and a hole transport layer, an active layer, an electron transport layer and a cathode layer are stacked successively to form a solar cell. A plurality of cell positions are designed on the substrate in the present invention. Each cell has an independent cathode test site and an anode test site. The distance between the test site of each cell and the cell is kept the same and the distance is short enough; and the cells are distributed evenly on the substrate discretely. The present invention has high substrate utilization rate, high data accuracy and good parallelism.

The present invention relates to an organic solar cell for a current-voltage test and a preparation method thereof. The disclosed organic solar cell for the current-voltage test comprises a substrate with a preset ITO pattern, wherein ITO on the substrate with the preset ITO pattern is used as the anode layer, and a hole transport layer, an active layer, an electron transport layer and a cathode layer are stacked successively to form a solar cell. A plurality of cell positions are designed on the substrate in the present invention. Each cell has an independent cathode test site and an anode test site. The distance between the test site of each cell and the cell is kept the same and the distance is short enough; and the cells are distributed evenly on the substrate discretely. The present invention has high substrate utilization rate, high data accuracy and good parallelism.

An aspect of the present disclosure is a method that includes exchanging at least a portion of a first cation of a perovskite solid with a second cation, where the exchanging is performed by exposing the perovskite solid to a precursor of the second cation, such that the precursor of the second cation oxidizes to form the second cation and the first cation reduces to form a precursor of the first cation.

The invention discloses a perovskite solar cell and a method of fabrication thereof. The perovskite solar cell sequentially comprises a transparent electrode, a mesoporous P-I-N framework and a counter electrode from the bottom to top; the mesoporous P-I-N framework is composed of an n-type semiconductor layer, an insulating layer, and a p-type semiconductor layer in a sequentially stacked mode, and the n-type semiconductor layer, the insulating layer and the p-type semiconductor layer all comprise mesopores filled with a perovskite material. The preparation method sequentially includes preparing the mesoporous P-I-N framework on a transparent conductive substrate through a spin-coating method or a screen printing method, filling with the perovskite material and preparing the counter electrode layer.