A solar battery cell, comprises a substrate; a first electrode provided on the substrate; a photoelectric conversion layer provided on the first electrode; a second electrode provided on the photoelectric conversion layer; and a barrier layer so provided as to cover a side portion of the photoelectric conversion layer, wherein the photoelectric conversion layer has an electron transport layer, a light absorption layer provided on the electron transport layer, and a hole transport layer provided on the light absorption layer, the light absorption layer includes a compound having a perovskite crystal structure, and the barrier layer is a dense inorganic material layer.

Provided is an energy harvester having excellent portability. The energy harvester includes a flat plate-shaped energy harvesting section and a pair of connectors that are electrically conductive. The energy harvesting section includes an electricity generating region that utilizes energy in the external environment to generate electrical power and metal foils. The metal foils extend from the electricity generating region to a peripheral part of the energy harvesting section. The electrical power of the electricity generating region is supplied to the metal foils. The peripheral part includes a pair of holes that expose part of each of the metal foils. Each of the connectors includes a spring, a terminal part that is electrically connected to the spring and is connectable to an external device, and a flat plate part that overlaps with the energy harvesting section. The springs are electrically connected to the metal foils exposed via the holes.

Thin-film solar cell modules and serial cell-to-cell interconnect structures and methods of fabrication are described. In an embodiment, solar cell module and interconnect includes a conformal transport layer over a subcell layer. The conformal transport layer may also laterally surround an outside perimeter the subcell layer.

A photoelectric conversion device includes: a first base plate; a second base plate disposed in opposition to the first base plate; a plurality of photoelectric conversion cells that are disposed between the first base plate and the second base plate and that each include a photoelectrode and a counter electrode disposed at a side closer than the photoelectrode to the second base plate; a first wiring structure disposed adjacently to the photoelectric conversion cells and capable of electrically connecting adjacent photoelectrode conversion cells; and a second wiring structure at least partly disposed between the counter electrode and the second base plate and capable of electrically connecting any photoelectric conversion cells among the plurality of photoelectric conversion cells.

A photovoltaic device (1) is provided with a first electrode layer (11), a photovoltaic layer (13), a second charge carrier transport layer (14) and a second electrode layer (15). The photovoltaic device (1) has a plurality of mutually subsequent photovoltaic device cells (1A, . . . , 1F) arranged in a first direction (D1). Each pair of a photovoltaic cell (1C) and its successor are serially connected in an interface region (1CD). The interface region comprises an elongate region (RO) between successive first electrode layer portion (11C, 11D), a first elongate region (R1) between successive photovoltaic layer portions (13A, 13B), a second elongate region (R2) between successive second charge carrier transport layer portions (14C, 14D) and a third elongate region (R3) between successive second electrode layer (15) portions (15C, 15D). The second elongate region (R2) extends within the first elongate region (R1), and its lateral boundaries are distinct from those of the first elongate region (R1).

A solar battery unit (100) is provided that includes: a substrate (120); a sola battery (110) attached to a back face of the substrate (120); and a communications module (130) attached to the substrate (120). The communications module (130) includes an antenna (132) disposed so as not to overlap solar cells (115) in the solar battery (110) in a front view.

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 solar cell includes elements, a connecting portion, and a transparent portion. The elements include first and second elements arrayed in a first direction. The transparent portion is located between the connecting portion and the second element. Each of the elements includes first and second electrode layers and a semiconductor layer interposed between the first and second electrode layers. Between the first element and the second element, their first electrode layers sandwich a first gap and their second electrode layers sandwich a second gap shifted in the first direction from the first gap. The connecting portion electrically connects the second electrode layer of the first element to the first electrode layer of the second element. The transparent portion is located between the second electrode layer of the first element and the first electrode layer of the second element at a position shifted in the first direction from the connecting portion.

A solar cell module (100) includes: one or more cells that are enclosed by a barrier packaging material (13A, 13B) and that include first and second base plates (3, 7) and a functional layer; and first and second lead-out electrodes (11A, 11B) that are respectively connected to electrodes (2, 6) disposed at the sides of the respective base plates (3, 7) via electrical connectors (12A, 12B). The electrical connectors (12A, 12B) are separated from the functional layer in a base plate surface direction. The lead-out electrodes (11A, 11B) are disposed on an outer surface of the barrier packaging material (13A, 13B). Gaps between the barrier packaging material (13A, 13B) and the lead-out electrodes (11A, 11B) are sealed by a lead-out electrode seal (15).

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.