Self-adherent flexible thin film stacks and photovoltaic devices including same
A flexible photovoltaic thin film device is provided, the flexible photovoltaic thin film device comprising: a support film; wires, the support film retaining the wires, the wires terminating in at least one contact point; and a plurality of flexible photovoltaic thin film stacks adhered on the support film and electrically connected to the wires, each flexible photovoltaic thin film stack comprising, in order, an outer protective layer, an outer electrode layer, an electron transport layer, a semi-conductor perovskite layer, a hole transport layer, an inner electrode layer and an adherent layer.
1 . A flexible photovoltaic thin film device, the flexible photovoltaic thin film device comprising: a support film; a plurality of wires, the support film retaining the plurality of wires, each wire of the plurality of wires independently terminating in a contact point; and a plurality of flexible photovoltaic thin film stacks adhered on the support film and each flexible photovoltaic thin stack independently electrically connected to one wire of the plurality of wires, each flexible photovoltaic thin film stack comprising, in order, an outer protective layer, an outer electrode layer, an electron transport layer, a semi-conductor perovskite layer, a hole transport layer, an inner electrode layer and an adherent layer, wherein the plurality of flexible photovoltaic thin film stacks are arranged in an array on the support film.
2 . The flexible photovoltaic thin film device of claim 1 , further comprising a second support film, the second support film sandwiching the plurality of flexible photovoltaic thin film stack between the second support film and the support film.
3 . The flexible photovoltaic thin film device of claim 1 , wherein the support film includes an adhesive backing.
4 . The flexible photovoltaic thin film device of claim 3 , wherein the support film includes a printed grid which divides the support film into a plurality of zones, each zone of the plurality of zones supporting at least one flexible photovoltaic thin film stack.
5 . The flexible photovoltaic thin film device of claim 4 , wherein the support film is polyimide, polyetheretherketone or transparent conductive polyester film.
6 . The flexible photovoltaic thin film device of claim 5 , wherein the hole transport layer is 2,2′,7,7′-Tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spiro-bifluorene.
7 . The flexible photovoltaic thin film device of claim 5 , further comprising a sensor layer between the inner electrode layer and the adherent layer, wherein the sensor layer is a photosensor or a temperature sensor.
8 . The flexible photovoltaic thin film device of claim 5 , further comprising a light emitting layer between the inner electrode layer and the adherent layer.
9 . The flexible photovoltaic thin film device of claim 5 , wherein the perovskite layer is orange.
10 . The flexible photovoltaic thin film device of claim 3 , further comprising slave contact points which are in electrical communication with the contact point and the wires and are retained on the support film.
11 . The flexible photovoltaic thin film device of claim 7 , wherein each flexible photovoltaic thin film stack further comprises, in order, a second inner electrode layer, which is adjacent to and in electrical communication with the inner electrode layer, an electron transport layer, a semi-conductor layer, a hole transport layer, an electrode layer, between the inner electrode layer and the adherent layer.