Schematic of the perovskite solar cell developed in this research and a scanning electron microscope image of its cross-sectional view (left) and output characteristics (right). Light is absorbed in the perovskite layer, and electrons and holes (charge carriers) generated by photoexcitation are transported — electrons to the electron transporting layer (PCBM) and holes to the hole transporting layer. Then, they are extracted from the electrode, generating electric power with the output characteristics as shown on the right.
Credit: NIMS
Researchers in Japan succeeded in producing highly reproducible and highly stable perovskite solar cells by a low-temperature solution process.
The results were published the Journal of Materials Chemistry A issued by the Royal Society of Chemistry (UK).
The ad hoc Team on Perovskite PV Cells (Team Leader: Kenjiro Miyano) of the Global Research Center for Environment and Energy based on Nanomaterials Science (GREEN) at the National Institute for Materials Science (NIMS) succeeded in producing highly reproducible and highly stable perovskite solar cells by using a low-temperature solution process, which is essential for realizing next-generation solar cells with such characteristics as low-cost, lightweight and flexible (Figure).
Conventional perovskite solar cells produced by a low-temperature solution process had problems in terms of stability and reproducibility, and details of their operational mechanism were difficult to clarify. In this research, the team newly developed a chlorine-mediated interdiffusion method, in which chlorine is added in the process of forming perovskite crystals, and realized high-efficiency perovskite solar cells having the following excellent characteristics by using a low-temperature solution process.
- A process temperature of less than 140°C at the most (high compatibility with flexible substrates, etc.)
- Excellent stability exhibiting consistent output characteristics for a long period
- Excellent durability maintaining stable output characteristics even under continuous light exposure for about two hours
- Highly reliable output characteristics and reproducibility exhibiting consistent conversion efficiency irrespective of the voltage sweep direction, etc.
Use of a low-temperature solution process makes it possible to produce solar cells with lightweight and flexible substrates such as plastic. In addition, the realization of highly stable, durable, and reproducible devices based on this research result enables detailed analysis of the operation of the devices even under continuous light exposure. Therefore, elucidation of the operational mechanism, which had been difficult in the past, is expected to advance remarkably toward practical application of perovskite solar cells.
The Latest on: Perovskite solar cells
[google_news title=”” keyword=”perovskite solar cells” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
via Google News
The Latest on: Perovskite solar cells
- All solar cell efficiencies at a glanceon December 8, 2023 at 9:20 am
The research group led by Professor Martin Green has published Version 63 of the solar cell efficiency tables. There are six new results reported in the new version.
- France gears up for perovskite hybrid solar panel manufactureon December 7, 2023 at 11:00 pm
An icon of a desk calendar. An icon of a circle with a diagonal line across. An icon of a block arrow pointing to the right. An icon of a paper envelope. An icon of the Facebook "f" mark. An icon of ...
- Fluxim unveils stress test solution for perovskite solar cellson December 6, 2023 at 1:48 am
As perovskite solar cell research gains momentum, Switzerland’s Fluxim has added a stress test module for perovskite PV technologies to its optoelectrical device characterization instrument to ...
- Open-air-processed perovskite tandem solar cells at 23% efficiencyon November 29, 2023 at 3:59 pm
But an upstart technology based on metal halide perovskites is catching up fast. Leaps in performance over the last decade have brought perovskite solar cells to over 25% efficiency in the lab, ...
- A new kind of solar cell is coming: is it the future of green energy?on November 28, 2023 at 4:00 pm
Firms commercializing perovskite–silicon ‘tandem’ photovoltaics say that the panels will be more efficient and could lead to cheaper electricity.
- Perovskite-silicon tandem solar cells provide extra protection against reverse-bias degradationon November 27, 2023 at 11:49 pm
An international research team demonstrated that monolithic perovskite-silicon tandem cells do not suffer the same degree of reverse bias degradation that is typically seen in perovskite single ...
- AI Could Hold Key to Better Solar Cell Manufacturingon November 23, 2023 at 1:41 am
Artificial Intelligence methods guide researchers in developing improved manufacturing processes for highly efficient solar cells – a blueprint for other research areas ...
- AI for perovskite solar cells: Key to better manufacturingon November 22, 2023 at 4:00 pm
Tandem solar cells based on perovskite semiconductors convert sunlight to electricity more efficiently than conventional silicon solar cells. In order to make this technology ready for the market, ...
- Using AI as a guide for the better manufacturing of perovskite solar cellson November 21, 2023 at 4:00 pm
Tandem solar cells based on perovskite semiconductors convert sunlight to electricity more efficiently than conventional silicon solar cells. In order to make this technology ready for the market, ...
- Inverted Perovskite Solar Cell Breaks 25% Efficiency Recordon November 21, 2023 at 1:42 am
Northwestern University researchers have raised the standards again for perovskite solar cells with a new development that helped the emerging technology hit new records for efficiency.
via Bing News
