Perovskite solar cells show tremendous promise in propelling solar power into the marketplace.
The cells use a hole-transportation layer, which promotes the efficient movement of electrical current after exposure to sunlight. However, manufacturing the hole-transportation organic materials is very costly and lack long term stability. Publishing in Science, a team of scientists in China, led by Professor Hongwei Han in cooperation with Professor Michael Grätzel at EPFL, have developed a perovskite solar cell that does not use a hole-transporting layer, with 12.8% conversion efficiency and over 1000 hours stability under full sunlight in ambient temperature. The innovation can reduce the cost of perovskite cells, and firmly propel them into the marketplace.
Hybrid organic–inorganic methylammonium lead halide perovskites have attracted intense attention for thin-film photovoltaics, due to their large absorption coefficient, high charge carrier mobility and long diffusion length. However, these cells are also costly because of the hole-transportation layer, which demands high purity materials and complicated fabrication procedures.
A team of scientists at the Michael Grätzel Center for Mesoscopic Cells of Huazhong University in China in cooperation with the Laboratory for Photonics and Interfaces at EPFL directed by Michael Grätzel have successfully manufactured a perovskite solar cell that does not need a hole-transportation layer. The solar cell shows comparative energy conversion efficiency (12.8%) and was shown to be stable for over 1000 hours in direct sun exposure.
The Latest on: Perovskite solar cell
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The Latest on: Perovskite solar cell
- How (and Why) Solar Will Take Over The Worldon July 6, 2019 at 6:06 am
where do we go from here? Prof. Charles Chee Surya, of The Hong Kong Polytechnic University, posing with a perovskite-silicon tandem solar cell that has some of the world’s highest efficiency ratings. ... […]
- Chemical Vapor Deposition of Organic-Inorganic Bismuth-Based Perovskite Films for Solar Cell Applicationon July 5, 2019 at 2:23 am
Perovskite solar cells have shown a rapid increase of performance and overcome the threshold of 20% power conversion efficiency (PCE). The main issues hampering commercialization are the lack of ... […]
- Meyer Burger tops up Oxford PV funding roundon July 4, 2019 at 6:06 pm
Oxford PV says it is on track to begin producing high-efficiency perovskite-on-silicon tandem solar cells by the end of next year, after key collaborator Meyer Burger and others topped up the UK ... […]
- Scientists Increase Stability and Efficiency of Perovskite Solar Cellson July 3, 2019 at 10:18 pm
MOSCOW: Scientists from NUST MISIS and IPCE RAS (Moscow, Russia) together with Italian colleagues from University of Rome Tor Vergata managed to significantly increase stability and effectiveness of ... […]
- Novel materials enable VIS-IR-sensitive solar cellson July 3, 2019 at 6:30 am
The perovskite is coupled with a hydrocarbon called rubrene, which emits the upconverted light. The idea behind this process is to create more efficient solar cells that can detect and utilize ... […]
- Global Quantum Dots Market Report 2019 (14th Edition): Optoelectronics Dominate the QD-based Products Market, chiefly High Definition TVs-QLED-TVson July 1, 2019 at 11:15 am
Since their synthesis over 30 years ago, QDs have featured in a range of optoelectronic devices, including TVs and displays, light-emitting devices (LEDs), solar cells, photodiodes ... […]
- High Power UV-Light Irradiation as a New Method for Defect Passivation in Degraded Perovskite Solar Cells to Recover and Enhance the Performanceon July 1, 2019 at 2:46 am
Although the power conversion efficiency (PCE) of perovskite solar cells (PSCs) reached up to 23%, their short lifetime and fast degradation still remain as the main challenges. In this work, a new ... […]
- UK project discovers why tin-based perovskite solar cells are pooron June 28, 2019 at 10:44 am
University of Surrey researchers have uncovered one of the mechanism that makes tin-based perovskite solar cells worse than similar cells made using lead (Pb), and found a cure. The finding, could ... […]
- Researchers explore use of new materials to create more efficient solar cellson June 28, 2019 at 6:23 am
The perovskite is coupled with a hydrocarbon called rubrene, which emits the upconverted light. "That means there is a large amount of the solar spectrum that can't be absorbed by a solar cell ... […]
- ‘Self-Healing’ Coating Minimizes Lead Leakage from Perovskite Cellson June 25, 2019 at 3:45 am
ONNA, Japan, June 25, 2019 — Adding a protective layer of epoxy resin to the top of a perovskite solar cell (PSC) can significantly reduce the amount of lead that the cell discharges into the ... […]
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