PVFIFTY · TOWARDS A 50% EFFICIENT CONCENTRATOR SOLAR CELL AND A 40% EFFICIENT SPACE SOLAR CELL
„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“
- Период
- 2015-05-01 → 2017-04-30
- Финансиране от ЕС
- 183 455 €
- Участници
- 1
- Схема
- MSCA-IF-EF-ST
Линиите свързват координатора с партньорите.
Накратко на български
Слънчевите конвертори се изследват чрез нови материали и оптика, за да се повиши ефективността им до 50% при генерирането на ток и топлина. Това помага за намаляване на парниковите газове на Земята и за разширяване на възможностите за космически изследвания.
Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.
Резултати накратко
TOWARDS A 50% EFFICIENT CONCENTRATOR SOLAR CELL AND A 40% EFFICIENT SPACE SOLAR CELL
The purpose of the project was to research and develop a range of technologies, each aimed at improving the efficiency of solar-energy converters. Specifically, the project aimed at developing materials, devices and optics to allow solar energy converters to reach 50% efficiency. The project included sun-to-electricity converters, sun-to-heat converters, and hybrid converters which generate both electricity and heat. Some of the developed technologies are specifically aimed at terrestrial energy generation for homes and businesses. The societal importance of this is to reduce greenhouse gas emission, and improve energy access and security. Some technologies aimed at generating power for space vehicles. The societal importance of this is to improve and reduce the cost of satellite telecommunications, and to increase the range of space exploration missions. Some technologies had both terrestrial and space applications.
Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз
Цел на проекта
Concentrator photovoltaic solar collectors have the potential to generate electricity at costs as low as 6¢/kWh, a price where they compete favourably with wholesale electricity prices. To achieve this, a solar cell with an efficiency in excess of 50% is required and will require considerable development over the present state of the art. In particular, a new semiconductor absorber layer with a 1eV band-gap will be required in addition to solar concentrations in excess of 1000X. The proposed research addresses both of these areas.Preliminary work has identified the use of bismide semiconductors to achieve the required 1eV semiconductor junction. A 1eV GaAsBi0.062 layer can be grown that has only 0.6% mismatch to GaAs, as compared to conventional In0.3GaAs that introduces >2% mismatch. We will develop high-performance photovoltaic devices based on this material. We will characterise the optical and electronic structure of these new materials using spectroscopic ellipsometry and photo/electroreflectance. The nature and concentration of defects will be determined using time-resolved optical spectroscopy and correlated with solar cell performance data by extending existing computer models.To achieve high efficiencies at high concentrations, it is necessary to reduce the resistive loss. Here, we propose to exploit lateral emission in tensile quantum well (QW) layers to provide a parallel radiative transport pathway that delivers photogenerated charges to the electrical contacts. A series of InGaP/InGaAsP QW test structures in compressive, tensile and unstrained configurations will be grown to control the directionality of emission, which will be confirmed using spectroscopic measurements. Concentrator solar cell device structures will be processed and the effective sheet resistivity evaluated using electroluminescent imaging. Front grid structures we be redesigned to account for radiative transport.
Оригинален текст от CORDIS (на английски).
Участници
- IMPERIAL COLLEGE OF SCIENCE TECHNOLOGY AND MEDICINE · LondonКоординаторОбединеното кралство
Връзки
Данни: CORDIS, © Европейски съюз