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4 clusters · 10 sources · 36 days · First seen · Last updated

Perovskite solar cell research and manufacturing

Overview

Research into perovskite solar technology continues to focus on improving efficiency, stability, and manufacturing processes. Initial developments included a room-temperature, partially green method for producing CsPbBr3-based perovskite particles using a water-octadecene biphasic solvent system, alongside the demonstration of a semi-transparent perovskite photovoltaic cell reaching 21.87% efficiency using a p-i-n architecture.

Subsequent advancements have addressed manufacturing complexities. Researchers in Germany developed a vacuum-based process chain to produce perovskite layers without solvents, utilizing sequential evaporation to deposit materials onto silicon substrates. Efforts to improve layer uniformity on textured silicon surfaces led to the implementation of a cesium chloride (CsCl) seeding layer to prevent the formation of unwanted lead iodide at the interface.

Building on these vacuum-based methods, researchers at the University of Freiburg and the Fraunhofer Institute for Solar Energy Systems have developed a fully solvent-free perovskite-silicon tandem solar cell. This process utilizes physical vapor deposition (PVD) and sequential evaporation to achieve a power conversion efficiency of 27.1%. This approach is designed for industrial scalability by eliminating liquid carriers, reducing contamination risks, and removing the need for drying steps. The technology has also demonstrated high stability, retaining 97.06% of its initial efficiency after 6,800 hours of dark storage under nitrogen.

Recent efforts have also focused on molecular passivation strategies to enhance cell longevity. In Japan, researchers at Sophia University and the National Institute for Materials Science used 2-aminobenzothiazole (2-ABZ) to stabilize tin-based perovskite cells by inhibiting tin oxidation. Additionally, a South Korean collaborative team developed a dual-molecule passivation technology using PDAI and 4TF molecules to address defects at grain boundaries and surface lead atoms, aiming to improve both efficiency and longevity in inverted perovskite cells.

Entities

University of Freiburg · Damian Glowienka · BESSY II · Fraunhofer Institute for Solar Energy Systems · University of Kentucky

Timeline

  1. 9 days ago

    [TECHNOLOGY] 5 sources
    Perovskite solar cell efficiency improved by new molecular passivation strategies

    Researchers in Japan and South Korea are advancing perovskite solar cell technology through new molecular passivation strategies designed to increase efficiency and prevent material degradation.

  2. 14 days ago

    [TECHNOLOGY] 4 sources
    German researchers develop solvent-free perovskite-silicon tandem solar cells

    German researchers have developed a scalable, solvent-free perovskite-silicon tandem solar cell with 27.1% efficiency, offering a more stable and efficient alternative to traditional silicon modules.

  3. 16 days ago

    [TECHNOLOGY] 2 sources
    Researchers advance perovskite-silicon tandem solar cell production

    German researchers have developed solvent-free manufacturing processes and improved layer uniformity for high-efficiency perovskite-silicon tandem solar cells.

  4. about 1 month ago

    [TECHNOLOGY] 2 sources
    Perovskite Solar Cell Advances: Green Synthesis and 21.9% Semi‑Transparent Tandem Cells

    University of Kentucky unveils green, room‑temperature synthesis of CsPbBr3 particles, while Gdańsk University of Technology achieves a 21.87% semi‑transparent perovskite solar cell for tandem use.

Sources

chemie.de · electronicsforu.com · elektronikpraxis.de · n-tv.de · newswise.com · openpr.de · pv-magazine-australia.com · pv-magazine.com · solarquarter.com · taiyangnews.info

This summary has been updated 2 times: see revision history