Perovskite solar cell

A perovskite solar cell, including:

• a module, including:
• a first encapsulation layer;
• a first light-transmitting electrode layer disposed on a rear facing surface of the first encapsulation layer;
• a first carrier transport layer disposed on a rear facing surface of the first light-transmitting electrode layer;
• a light-absorbing layer disposed on a rear facing surface of the first carrier transport layer;
• a second carrier transport layer disposed on a rear facing surface of the light-absorbing layer;
• a second light-transmitting electrode layer disposed on a rear facing surface of the second carrier transport layer;
• and
• a filling material layer disposed on a rear facing surface of the second light-transmitting electrode layer or only on traces of the module;
• and
• an encapsulation glue used to adhere module to a second encapsulation layer, wherein a surface of the filling material layer that is not in contact with the second light-transmitting electrode layer is covered by the encapsulation glue,
• wherein the filling material layer is a filling pigment layer, and wherein the ΔE difference set by the International Commission on Illumination between a color of the filling pigment layer and a color of the light-absorbing layer is less than 2, and a light transmittance difference is less than 10%.

A perovskite solar cell, including:

• a module, including:
• a first encapsulation layer;
• a first light-transmitting electrode layer disposed on a rear facing surface of the first encapsulation layer;
• a first carrier transport layer disposed on a rear facing surface of the first light-transmitting electrode layer;
• a light-absorbing layer disposed on a rear facing surface of the first carrier transport layer;
• a second carrier transport layer disposed on a rear facing surface of the light-absorbing layer;
• a second light-transmitting electrode layer disposed on a rear facing surface of the second carrier transport layer;
• and
• a filling material layer disposed on a rear facing surface of the second light-transmitting electrode layer or only on traces of the module;
• and
• an encapsulation glue used to adhere the module to a second encapsulation layer, wherein the filling material layer and the encapsulation glue are different layers;
• wherein ΔE difference set by the International Commission on Illumination between a color of the filling material layer and a color of the light-absorbing layer is less than 2, and a transmittance difference is less than 10%;
• wherein a thickness of the filling material layer ranges between 1 and 100 nm.

A perovskite solar cell, including:

• a module, including:
• a first encapsulation layer;
• a first light-transmitting electrode layer disposed on a rear facing surface of the first encapsulation layer;
• a first carrier transport layer disposed on a rear facing surface of the first light-transmitting electrode layer;
• a light-absorbing layer disposed on a rear facing surface of the first carrier transport layer;
• a second carrier transport layer disposed on a rear facing surface of the light-absorbing layer;
• a second light-transmitting electrode layer disposed on a rear facing surface of the second carrier transport layer;
• and
• a filling material layer disposed on a rear facing surface of the second light-transmitting electrode layer or only on traces of the module;
• and
• an encapsulation glue used to adhere the module to a second encapsulation layer, wherein a surface of the filling material layer that is not in contact with the second light-transmitting electrode layer is covered by the encapsulation glue;
• wherein ΔE difference set by the International Commission on Illumination between a color of the filling material layer and a color of the light-absorbing layer is less than 2, and a transmittance difference is less than 10%;
• wherein a thickness of the filling material layer ranges between 1 and 100 nm.