A new manufacturing process for 19.5% efficient perovskite solar cells
Researchers in China have proposed manufacturing perovskite cells using a pre-nucleation technique. Compared to traditional solvent dripping methods, the approach enables the creation of smaller crystallites in the perovskite films as uncontrolled crystallite growth affects the efficiency and durability of cells.
German scientists develop solar facade with 50% higher yield
The three-meter prototype consists of nine panels based on an aluminum compound. The PV elements of the facade can be tilted to capture more sunlight.
Achieving 21.2% efficiency in a perovskite cell thanks to food additives
South Korean scientists have developed two perovskite solar cells based on a polymer made with peppermint oil and walnut aroma food additives, respectively. The new dopant‐free hole transport polymer is said to enable longer durability of the devices and to prevent lead-leakage.
A plug-and-play solar-powered battery back-up solution for the home
The OneBox, from Indian manufacturer Vision Mechatronics, consists of a lithium battery, hybrid inverter and solar charge controller to give a ‘hassle-free’ solution for electricity back-up during power outages. Solar rooftop owners are offered a grid feed feature to maximize net metering income from any excess power generated.
A new PV emulator to evaluate the I-V profile of solar panels
The device is based on a state-feedback adaptive control system in a real-time controller. According to its developers, it can achieve good dynamic response and boasts better bandwidth than current commercial alternatives.
Korean researchers announce flexible CIGS solar cell with 20.4% efficiency
The thin-film cell was manufactured through a low-temperature process and doping with alkali elements.
Quantum dot hybrid HTJ cell with 12.82% efficiency
South Korean researchers have developed a hybrid tandem solar cell based on quantum dots and organic bulk heterojunction (BHJ) photoactive materials. They claim that the cell could reach an efficiency rate of around 15% if they continue to reduce energy losses in the quantum dot cell and enhance near-infrared absorption.
Integrating stress and temperature sensors in crystalline silicon cells
Fraunhofer ISE researchers have integrated stress and temperature sensors within a PV module. They claim that the devices cover a very minimal part of the cells, and that their interaction with the module and the cell itself is quite limited. The sensors can be manufactured as part of a regular cell manufacturing process.
International consortium claims 25% efficiency for perovskite CIGS solar cell
Researchers led by Belgian institute imec claim to have achieved the result with a 1cm² perovskite tandem solar cell. The result tops the 24.6% efficiency the consortium announced in September 2018. The cell’s developers are now aiming for 30%.
Why go solar? We can think of at least 333 reasons
Australian researchers have compiled data from 173 studies which examined homeowner behavior when buying rooftop PV and identified 333 predictors related to the attitude, knowledge, tendency, awareness, willingness and intent of householders.
