Researchers achieve 28.49% efficiency with all-perovskite solar cell

10 Sep 2024 CW Team

The tandem solar cells utilise two perovskite materials to capture a broader spectrum of sunlight, enhancing efficiency. Beyond high performance, the cells also demonstrated durability, maintaining optimal functionality after 550 hours of continuous operation.

Perovskite is gaining attention as a potential replacement for silicon in solar cells, being more cost-effective and flexible for various configurations, including bendable applications. While commercial use remains limited, the researchers were able to minimise defects in the material, contributing to the efficiency milestone.

The team successfully developed a Sn–Pb mixed perovskite film, which significantly boosted the cell’s performance. The report noted that Sn–Pb mixed perovskite solar cells with bandgaps of 1.32 and 1.25?eV achieved power conversion efficiencies of 22.65% and 23.32%, respectively, with the two-junction tandem cell reaching the certified efficiency of 28.49%.

A key challenge in improving the efficiency of these cells has been overcoming surface defects that lead to non-radiative recombination loss in Sn–Pb mixed narrow bandgap perovskite films. To address this, the researchers employed a surface reconstruction strategy using a polishing agent, 1,4-butane diamine, and a passivator, ethylenediammonium diiodide, to eliminate Sn-related defects and passivate vacancy defects.

Earlier this year, researchers from the National University of Singapore achieved a 27.1% efficiency with a novel triple-junction solar cell, while efforts by MIT and other institutions are exploring ways to improve perovskite solar panels through nanoscale engineering.

(Mercom)

A team of researchers from Huazhong University of Science and Technology in China has developed an all-perovskite tandem solar cell with a record-breaking power conversion efficiency of 28.49%. This achievement, detailed in the paper Surface chemical polishing and passivation minimise non-radiative recombination for all-perovskite tandem solar cells, was published in ‘Nature Communications’. The tandem solar cells utilise two perovskite materials to capture a broader spectrum of sunlight, enhancing efficiency. Beyond high performance, the cells also demonstrated durability, maintaining optimal functionality after 550 hours of continuous operation. Perovskite is gaining attention as a potential replacement for silicon in solar cells, being more cost-effective and flexible for various configurations, including bendable applications. While commercial use remains limited, the researchers were able to minimise defects in the material, contributing to the efficiency milestone. The team successfully developed a Sn–Pb mixed perovskite film, which significantly boosted the cell’s performance. The report noted that Sn–Pb mixed perovskite solar cells with bandgaps of 1.32 and 1.25?eV achieved power conversion efficiencies of 22.65% and 23.32%, respectively, with the two-junction tandem cell reaching the certified efficiency of 28.49%. A key challenge in improving the efficiency of these cells has been overcoming surface defects that lead to non-radiative recombination loss in Sn–Pb mixed narrow bandgap perovskite films. To address this, the researchers employed a surface reconstruction strategy using a polishing agent, 1,4-butane diamine, and a passivator, ethylenediammonium diiodide, to eliminate Sn-related defects and passivate vacancy defects. Earlier this year, researchers from the National University of Singapore achieved a 27.1% efficiency with a novel triple-junction solar cell, while efforts by MIT and other institutions are exploring ways to improve perovskite solar panels through nanoscale engineering. (Mercom)

Infrastructure Urban

23 Dec 2024

CONCOR Launches Double-stack Service Between NCR and Varnama

State-run Container Corporation of India (CONCOR) has launched double-stack container train services between the National Capital Region (NCR) and Varnama near Baroda. This initiative aims to facilitate customers at Nhava Sheva near Mumbai, home to Jawaharlal Nehru Port (J N Port). On December 21, the first double-stack container train from Khatuwas and Dadri in NCR reached CONCOR’s Gati Shakti Multimodal Cargo Terminal (GCT) at Varnama, situated along the Western Dedicated Freight Corridor (WDFC). The train carried export cargo destined for J N Port, according to a statement from the state..

Infrastructure Transport

23 Dec 2024

Less than 10% of Rs 40 Billion State-aid for Shipbuilding Utilised

A government-sanctioned financial assistance program worth Rs 40 billion, intended to support local shipbuilders over a decade starting in April 2016, has seen minimal utilisation, with only Rs 3.85 billion—less than 10 per cent of the total fund—disbursed thus far. With 15 months remaining before the scheme concludes, its uptake has been limited. The financial aid applies to shipbuilding contracts signed between April 1, 2016, and March 31, 2026. According to a written response provided by Union Minister of Ports, Shipping, and Waterways Sarbananda Sonowal to the Rajya Sabha on December ..

Infrastructure Transport

23 Dec 2024

Civil Aviation Minister Opens New ATC Tower at Indore Airport

The Minister for Civil Aviation, Ram Mohan Naidu Kinjarapu, inaugurated the new Air Traffic Control (ATC) Tower-cum-technical block at Devi Ahilyabai Holkar International Airport in Indore, Madhya Pradesh. During the inauguration, the minister toured the facility, where ATC experts explained various technical aspects of tracking and coordinating flights from the newly constructed tower. In addition to the ATC tower, the airport has also introduced a zero-waste plant. The union minister confirmed that this initiative aligns with the government’s commitment to sustainability. Minister Ki..

Researchers achieve 28.49% efficiency with all-perovskite solar cell

CONCOR Launches Double-stack Service Between NCR and Varnama

Less than 10% of Rs 40 Billion State-aid for Shipbuilding Utilised

Civil Aviation Minister Opens New ATC Tower at Indore Airport

Opinion Poll

Question : Which technological advancement do you believe will most transform the real estate industry in the coming years?

Live Results :

Virtual Reality and 3D Property Tours

Smart Home and Building Automation

Blockchain for Property Transactions

Big Data and Predictive Analytics for Market Insights

Augmented Reality for Property Staging and Design

Drone Technology for Aerial Photography and Site Analysis

Latest updates

CONCOR Launches Double-stack Service Between NCR and Varnama

Less than 10% of Rs 40 Billion State-aid for Shipbuilding Utilised

Civil Aviation Minister Opens New ATC Tower at Indore Airport

Residents Unaware of the Nargis Dutt Nagar Redevelopment in Mumbai

Allahabad HC Cancels ECIR and Two FIRs Against M3M India

CAG Audit Reveals Lapses in YEIDA's Policies

GST Authorities Issue Notices to Developers Over Rs 35 Billion Claims

GST Hike to Raise Home Prices by 10 per cent Says Credai Pune

Follow us on

First Name *

Last Name *

Industry *

Email Address *

Mobile Number *

Password *

Confirm Password *

Subscribe to our Newsletter

Email Address *

Password *

Please enter the details

Email Address

Researchers achieve 28.49% efficiency with all-perovskite solar cell

CONCOR Launches Double-stack Service Between NCR and Varnama

Less than 10% of Rs 40 Billion State-aid for Shipbuilding Utilised

Civil Aviation Minister Opens New ATC Tower at Indore Airport

Opinion Poll

Question : Which technological advancement do you believe will most transform the real estate industry in the coming years?

Live Results :

Virtual Reality and 3D Property Tours

Smart Home and Building Automation

Blockchain for Property Transactions

Big Data and Predictive Analytics for Market Insights

Augmented Reality for Property Staging and Design

Drone Technology for Aerial Photography and Site Analysis

Latest updates

Follow us on

Modal Heading

First Name *

Last Name *

Industry *

Email Address *

Mobile Number *

Password *

Confirm Password *

Subscribe to our Newsletter

Email Address *

Password *

Please enter the details

Email Address