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Technology and R&D

Standardized testing for indoor PV

Researchers at Simon Fraser University in Canada have proposed protocols for standardized testing to avoid skewed results. The validated recommendations cover procedures for key measurements and the use of the indoor PV reference cell method.

Researchers discover photovoltaic properties in zinc-based film

Research from the University of Wisconsin-Milwaukee has found zinc-phosphate-hydrate (ZPH) films are capable of producing electricity from light. The coating’s photovoltage was amplified when anthocyanin, a natural dye found in blackberries, was added.

Astrobotic, Honda developing vertical solar, storage solution for lunar missions

Pittsburgh-based aerospace company Astrobotic and Honda’s North American subsidiary are working on integrating Astrobotic’s vertical solar array technology with Honda’s regenerative fuel cell system to develop a power and storage solution capable of supporting prolonged exploration of the moon.

Scientists break Shockley-Queisser efficiency limit for silicon solar cell in experiment

A Chinese-US research group claims to have achieved a power conversion efficiency of over 50% in an n-type single-junction solar cell by inhibiting light conversion to heat at extremely low temperatures. The result was achieved at temperatures of 30-50 Kelvin, which are a few tens of degrees above absolute zero.

Why do some cities have higher low-income solar adoption rates than others?

After studying low- and moderate-income solar adoption for years, Lawrence Berkely Laboratory drilled down on three cities and captured why solar equity requires looking beyond numbers alone.

Scaling perovskite tandems’ U.S. prospects

Three US manufacturers actively working to commercialize their respective perovskite-silicon tandem technologies make the case for tandem modules. CubicPV, Caelux and Swift Solar argue a commercial future for perovskites is inevitable, and they tell pv magazine the current policy environment could work in the technology’s favor.

RE+: Ten cutting-edge technologies from North America’s largest solar trade show

New solar panels, battery energy storage systems, factory announcements and more are set to be unveiled at RE+ Las Vegas, Nevada, Sep 8-11.

All back-contact perovskite solar cell designs at a glance

Scientists from Japan, Saudi Arabia and the United States have investigated existing back-contact perovskite solar cell architectures and have proposed a strategy to help reach commercial production.

New deep learning tech for PV inverter fault diagnosis

A team of scientists at Georgia Southern University has combined both spatial and temporal attention mechanisms to develop a new approach for PV inverter fault detection. Training the new method on a dataset created in MATLAB/Simulink, the group has compared it to a series of other data-driven and statistical-based methods and has found accuracy reached 97.35%.

Inside perovskite solar cell durability and performance testing

Accurately measuring the performance of perovskite solar cells and modules requires significant modifications to long-established testing standards used in silicon PV. Researchers are settling on methods that rely on up to several minutes of constant light exposure and other time-consuming procedures. These may be fine for the laboratory setting, but those looking to produce this technology at scale need standardized methods that can characterize cells and modules at a much faster rate.

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