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Iran

Cooling solar panels with cold steam from ultrasonic thermoelectric generators

Iranian researchers have looked at how ultrasonic thermoelectric generators could be used to lower the operating temperature of solar modules. Their new system can generate cold steam via ultrasonic piezoelectrics in a simple batch system.

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Super-fast, long-life aqueous rechargeable zinc battery

An international group of researchers has demonstrated an aqueous zinc battery with excellent performance in terms of capacity, rate capability, specific energy, and output voltage. The supercapacitor-battery hybrid device has also shown unprecedented cycling stability 99.2% capacity retention after 17,000 cycles at 100% depth of discharge.

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Solar-driven multigeneration system for hydrogen, electricity, heat

An Iranian research group has developed a system that combines photovoltaic-thermal modules with organic Rankine cycle, a proton exchange membrane electrolyzer, and liquefied natural gas. The ideal system has an exergy efficiency of 16.24%, a cost rate of $4.48 per hour, and 33.32 kW of net electrical power.

Ultra-thin silicon nanoparticle solar cell with 11% efficiency

Iranian scientists have demonstrated a multi-layer silicon nanoparticle (SNP) solar cell based on nanoparticles that are densely stacked inside a dielectric medium. They considered different SNP structures and configurations to tailor these particles as a p–n junction cell.

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Iran pre-qualifies 85 bidders for 4 GW solar tender

The Iranian authorities will choose development proposals from domestic and foreign investors for solar projects ranging from 10 MW to 250 MW in size. The selected developers will be awarded 20-year power purchase agreements at a fixed tariff.

Iran launches tender for 4 GW of solar

The Iranian authorities have kicked off a tender to select development proposals for solar projects up to 10 MW in size, from both domestic and foreign investors.

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Four-terminal tandem perovskite solar cell design with 30.14% efficiency

The lead-free solar cell was modeled via a three-dimensional finite element method by an Iranian research group. The cell was designed without the buffer layer and with the addition of anti-reflection layer (ARL) strategies, as well as the use of periodic nano-texture patterns.

Carbon-based, HTL-free perovskite solar cells with 26% efficiency

An international research team has designed a carbon-based perovskite solar cell without a hole transport layer. Two plasmonic nanoparticles – [email protected] and [email protected]@SiO2 – were added to the cell photoactive layer, in addition to a copper(I) thiocyanate (CuSCN) interlayer at the perovskite-carbon interface.

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Two-layer phase change materials for solar module cooling

Researchers in Iran have tested four different two-layer PCMs across several cooling system configurations and have found that the payback time of the proposed cooling tech is still far from reaching commercial viability. The system, however, was able to improve PV power generation by more than 3% and produce hot water with a temperature of up to 48 Celsius degrees from the solar module’s excess heat.

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Low-cost deposition tech for perovskite solar cells

Italian and Iranian researchers have developed the new “deposition via an antisolvent-soaked applicator” technique, which they describe as an easily scalable process to produce uniform, pinhole-free perovskite films. They tested the process on a 6.7%-efficient solar cell based on a polyethylene terephthalate substrate, raising its power conversion efficiency by 82%.

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