Publication

Sub-Nanometer Conformal TiO2 Blocking Layer for High Efficiency Solid-State Perovskite Absorber Solar Cells

Michael Graetzel, Mohammad Khaja Nazeeruddin, Peng Gao, Peng Gao, Aswani Yella, Aravind Kumar Chandiran, Matthew Thomas Mayer
2014
Journal Articles

Abstract

A mere 2 nm conformal titanium dioxide overlayer coated by atomic layer deposition is shown to act as a blocking layer for high-efficiency solid-state perovskite (CH3NH3PbI3) absorber-based solar cells. Surpassing the existing multilayer passivation, this ultrathin sub-nanometer layer leads to a photovoltaic power conversion efficiency of 11.5%.

Official source

https://infoscience.epfl.ch/entities/publication/67fa4e4a-567e-4922-b502-2288c025336f

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Michael Graetzel, Mohammad Khaja Nazeeruddin, Peng Gao, Peng Gao, Aswani Yella, Aravind Kumar Chandiran, Matthew Thomas Mayer
2014
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/67fa4e4a-567e-4922-b502-2288c025336f

About this result

Ontological neighbourhood

Energy engineering

Solar power: Topics in solar power

Related concepts (18)

Solar cell

A solar cell, or photovoltaic cell, is an electronic device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical phenomenon. It is a form of photoelectric cell, defined as a device whose electrical characteristics, such as current, voltage, or resistance, vary when exposed to light. Individual solar cell devices are often the electrical building blocks of photovoltaic modules, known colloquially as solar panels.

Solar-cell efficiency

Solar-cell efficiency refers to the portion of energy in the form of sunlight that can be converted via photovoltaics into electricity by the solar cell. The efficiency of the solar cells used in a photovoltaic system, in combination with latitude and climate, determines the annual energy output of the system. For example, a solar panel with 20% efficiency and an area of 1 m2 will produce 200 kWh/yr at Standard Test Conditions if exposed to the Standard Test Condition solar irradiance value of 1000 W/m2 for 2.

Photovoltaic power station

A photovoltaic power station, also known as a solar park, solar farm, or solar power plant, is a large-scale grid-connected photovoltaic power system (PV system) designed for the supply of merchant power. They are different from most building-mounted and other decentralized solar power because they supply power at the utility level, rather than to a local user or users. Utility-scale solar is sometimes used to describe this type of project.

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