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Researchers design 31%-efficient perovskite solar cell based on calcium nitrogen iodide

An international team has demonstrated a perovskite solar cell relying on inorganic calcium nitrogen iodide (Ca3NI3) perovskite and has found this absorber material offers advantages such as tunable bandgap and resistance to heat. The device achieved a fill factor of 81.68%.

Bangladesh approves 300 MW of solar

The Bangladeshi authorities have approved three 100 MW solar projects, with tariff rates of around $0.10/kWh.

Tandem solar cell based on cadmium telluride, iron disilicide promises 43.9% efficiency

Researchers in Bangladesh have designed a dual-junction tandem solar cell with a bottom device based on iron disilicide (FeSi2), an emerging absorber material know for its high thermal stability and good optoelectronic properties. Their simulation showed the advantage of combining the larger bandgap of the top cadmium telluride cell and the smaller bandgap of the bottom FeSi2 cell.


Bangladeshi utility completes 75 MW solar project

The Electricity Generation Company of Bangladesh (EGCB), backed by the World Bank and the Bangladeshi government, has finished building a 75 MW solar project in southeastern Bangladesh.

New CIGS solar cell design with antimony trisulfide promises 31.15% efficiency

The novel solar cell uses antimony trisulfide (Sb2S3) as the back surface field (BSF) layer. According to its creators, this layer can be included in conventional CIGS solar cells to improve their efficiency and reduce the absorber material’s cost.


Bangladesh’s solar project approvals hit 2.1 GW in 2023

In December alone, the Bangladeshi authorities approved 630 MW of PV projects.


Novel tin selenide solar cell design promises 36.45% efficiency

Tin selenide solar cells have so far reached limited efficiencies in real applications. Bangladeshi scientists claim to have found a way to drastically improve their performance by adding a copper/indium/selenium (CIS) thin-film layer and a back surface field (BSF) layer.


Bangladesh approves 1.5 GW of solar

Bangladesh has approved more than 1.5 GW of solar projects over the past seven months, with recent developments including tariffs for 200 MW in November and 310 MW in October.


Novel architecture for heterojunction copper bismuth oxide solar cells

Researchers in Bangladesh have simulated a solar cell based on a copper bismuth oxide material, used as an absorber, with a hole transport layer made of copper(I) oxide (Cu2O). In the experiment, the device achieved a power conversion efficiency of 29.2%, an open-circuit voltage of 1.02 V, a short-circuit current density of 32.49 mA/cm2, and a fill factor of 87.91%.


New lead-free perovskite solar cell design promises 26.96% efficiency

Bangladeshi scientists have developed a high-efficiency perovskite solar cell with 26.96% efficiency, an open-circuit voltage of 1.0478 V, and a fill factor of 81.35%.

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