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The University of Michigan develops a new OLED electrode that The University of Michigan develops a new OLED electrode that

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The University of Michigan develops a new OLED electrode that can increase light output by 20%

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Researchers at the University of Michigan have developed a new electrode that can increase the light output of OLEDs by 20%. It is assumed that the development will help increase the battery life of smartphones and laptops or make TVs and monitors of the new generation more energy efficient.

Significantly, the fabrication of the new electrode fits well with the existing OLED display and lighting production process.

The problem with OLED is that a lot of the light can’t get out. Rays that do not reach the working surface at an angle close to a straight line are reflected back from the electrode and scattered inside due to multiple reflections. There is a waveguide effect. According to the source, without special measures, 80% of the light would remain inside the OLED.

The main contribution to the formation of modes is made by a transparent electrode located between the light-emitting material and glass. It is typically made from Indium Tin Oxide (ITO). The researchers replaced it with a layer of silver just five nanometers thick, deposited on a seed copper layer. At the same time, it was possible to preserve the electrode function, completely eliminating the waveguide problem. This simple yet effective technique has significantly increased the external quantum efficiency of OLEDs.

According to the scientists, their proposed approach could be extended to other solid-state light-emitting diodes, since they are all sensitive to the waveguide problem.

The situation can be further improved by a special treatment of the glass, which reduces the reflection of light from it. In the experimental setup, the glass was replaced with a liquid. By “matching the parameters”, it was possible to prevent reflection at the interface between two media: glass with a high refractive index and air with a low index. As a result, the LED brightness has increased by about 20%.

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It will replace the Passat. Volkswagen ID introduced. AERO

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It will replace the Passat Volkswagen ID introduced AERO

Volkswagen introduced the ID sedan. AERO, which is built on the pure electric MEB platform. In addition, the dimensions and technical parameters were disclosed.

The car received a body with a drag coefficient of only 0.23Cd. Volkswagen ID. AERO is positioned as a mid-size sedan, its length, width and height are 4975, 189 and 1528 mm, respectively. Thanks to the advantages of a purely electric platform, its wheelbase reaches almost 3 m (2966 mm). According to Volkswagen’s official statement, it has an interior space comparable to the Phaeton.

It will replace the Passat.  Volkswagen ID introduced.  AERO

Volkswagen ID. AERO uses a new interior design. The car uses a lot of straight lines. The LCD instrument panel is hidden in the center console, it also received a large floating center screen, while the car has almost no physical buttons.

Hidden under the floor of the sedan is a lithium-ion battery with a capacity of 77 kWh, which provides a range of up to 620 km on the WLTP cycle. 150 kW fast charging will also be supported.

It will replace the Passat.  Volkswagen ID introduced.  AERO

It is reported that the Volkswagen ID. AERO will be the model that will replace the Passat in the future.

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“It is often said that there is not enough chips, but most of all, engineers are missing.” Japan’s largest chip makers face shortage of specialists

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It is often said that there is not enough chips

Japan’s largest semiconductor makers, from Toshiba to Sony, have warned that a shortage of engineers is threatening the government’s efforts to revive the domestic chip industry.

The expected labor crisis comes as Japan works to increase investment in the semiconductor sector as part of efforts to bolster its economic security amid the chip shortage caused by the Covid-19 pandemic.

In an address to the Ministry of Economy, Trade and Industry last month, the electronics industry group said that over the next few years, Japan has the best chance of regaining its position in the semiconductor market.

“It is often said that there is not enough chips, but most of all, engineers are missing.”  Japan's largest chip makers face shortage of specialists

The Japan Electronics and Information Technology Manufacturers Association said the sector’s success depends on attracting enough people to innovate and run chip factories. It is estimated that eight major manufacturers will need to hire about 35,000 engineers over the next 10 years to keep up with the pace of investment.

“It is often said that there is not enough chips, but most of all, there is not enough engineers,” said Hideki Wakabayashi, a professor at the University of Tokyo and head of the policy proposal task force at the JEITA Semiconductor Committee.

To support innovation and search for potential employees, Toshiba, Sony and other companies are collaborating with the best scientific departments across the country and investing additional resources in chip research and recruitment.

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The new Redmi declassified before the announcement

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The new Redmi declassified before the announcement

Xiaomi is preparing to release a new budget smartphone in the near future, which will be called the Redmi 10 Prime Plus 5G. The novelty was spotted in the database of the popular test application GeekBench, which confirmed the key characteristics.

The smartphone is expected to be an upgraded version of the Redmi Note 11E 5G series model launched earlier this year. The device scored 198 points in the single-core test and 1179 points in the multi-core test.

The new Redmi declassified before the announcement

This device is powered by a MediaTek Dimensity 700 SoC with Mali G57 GPU along with 4GB of RAM. Presumably, the amount of flash memory will be 64 or 128 GB. The certification also confirmed that the Redmi 10 Prime Plus 5G will run MIUI 13 based on Android 12.

The smartphone is expected to feature a 6.58-inch FHD+ display with a 90Hz refresh rate. The main camera will include a 50-megapixel main and 2-megapixel portrait image sensors. The battery capacity will be 5000 mAh, the smartphone will support 18W fast charging.

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