Researchers of Kim Il Sung University are conducting intensive research into design of energy materials which are indispensable in the development and utilization of natural energy resources.
“Energy materials are largely divided into those for energy conversion and energy storage. Our goal is to design materials that are highly effective in converting natural energy into electric energy and in storing the converted energy,” said Yu Chol Jun (pictured), professor and PhD, who is department chief of the materials science faculty.
He has spent several years engaged in the research into materials for photovoltaic cells.
Today, it is a dominant trend in the development of photovoltaic conversion materials for solar panels to use perovskite which can be obtained at low cost by a chemical method, instead of using expensive silicon.
However, perovskite entails some stability problems.
Yu newly designed an interface structural model of the photovoltaic material consisting of mixed halogen perovskite, Lewis base and graphene.
“Mixed halogen perovskite and graphene are widely applied as energy conversion materials. I found out that when Lewis base is added between mixed halogen perovskite and graphene to form a new interface structural model, it can improve the stability of the photovoltaic cells,” said Yu.
He also discovered that the replacement of a certain amount of titanium, which is used as a cathode activation material for sodium ion battery, by vanadium can greatly expand the storage capacity in the design of energy storage materials.
According to him, the research finding provided the scientific base for increasing the capacity of sodium ion batteries to more than double that of expensive lithium batteries at the maximum.
Yu has contributed 43 papers to SCI-class magazines and his last paper was published last January.
More From Pyongyang Times
On January 18, Denmark, Finland, France, Germany, the Netherlands, Norway, Sweden and the UK issued a joint statement against the
January 26, 2026
On January 18, Denmark, Finland, France, Germany, the Netherlands, Norway, Sweden and the UK issued a joint statement against the
The prime minister of Greenland reaffirmed the stand to defend the right to self-determination on January 19. The oppressive moves
January 26, 2026
The prime minister of Greenland reaffirmed the stand to defend the right to self-determination on January 19. The oppressive moves
Modern rural dwellings are springing up one after another in Kangwon Province amid the news of ceremonies of moving into new
January 26, 2026
Modern rural dwellings are springing up one after another in Kangwon Province amid the news of ceremonies of moving into new
Sariwon Ri Kye Sun University of Education has been newly built in North Hwanghae Province. The university has school buildings,
January 26, 2026
Sariwon Ri Kye Sun University of Education has been newly built in North Hwanghae Province. The university has school buildings,
The Farm Machine Institute has been successfully built as the central base for leading the comprehensive mechanization of
January 26, 2026
The Farm Machine Institute has been successfully built as the central base for leading the comprehensive mechanization of
A fish pickling workshop has been built at the Hanchon Fishery Station. The construction of the base for producing various kinds
January 26, 2026
A fish pickling workshop has been built at the Hanchon Fishery Station. The construction of the base for producing various kinds
The Iraqi government on January 18 announced the US-led international allied forces completely withdrew from military bases in the
January 25, 2026
The Iraqi government on January 18 announced the US-led international allied forces completely withdrew from military bases in the
According to an American organization, more than 400 large-scale shooting cases occurred in the US last year, causing over 40 000
January 25, 2026
According to an American organization, more than 400 large-scale shooting cases occurred in the US last year, causing over 40 000
Fairyland villages were built in different farms in Junghwa and Singye counties of North Hwanghae Province, epitomizing the change
January 25, 2026
Fairyland villages were built in different farms in Junghwa and Singye counties of North Hwanghae Province, epitomizing the change
Kim Jong Un, general secretary of the Workers’ Party of Korea and president of the State Affairs of the Democratic People’s
January 25, 2026
Kim Jong Un, general secretary of the Workers’ Party of Korea and president of the State Affairs of the Democratic People’s
The Workers’ Party of Korea is organizing and conducting in a bold way the work to realign the farm fields of the country into
January 24, 2026
The Workers’ Party of Korea is organizing and conducting in a bold way the work to realign the farm fields of the country into
European countries are strongly resisting the US’ threat to impose from February 1 10 percent tariff on those countries which do n
January 24, 2026
European countries are strongly resisting the US’ threat to impose from February 1 10 percent tariff on those countries which do n
On January 23 1968, the sailors of the Korean People’s Army located an unidentified ship in the waters off Wonsan in the East
January 23, 2026
On January 23 1968, the sailors of the Korean People’s Army located an unidentified ship in the waters off Wonsan in the East
Russian presidential press secretary Dmitri Peskov mentioned about a series of international issues at the recent press
January 23, 2026
Russian presidential press secretary Dmitri Peskov mentioned about a series of international issues at the recent press
The US Senators and Representatives recently criticized the authorities' attempt to annex Greenland. Military invasion of
January 23, 2026
The US Senators and Representatives recently criticized the authorities' attempt to annex Greenland. Military invasion of
A new spectacular sight of regional development has unfolded in the Yombunjin area renowned as a scenic attraction on the east
January 23, 2026
A new spectacular sight of regional development has unfolded in the Yombunjin area renowned as a scenic attraction on the east
Several rural villages in South Phyongan Province have undergone radical changes. Modern houses were built in Soje-ri of Taedong
January 23, 2026
Several rural villages in South Phyongan Province have undergone radical changes. Modern houses were built in Soje-ri of Taedong
The respected Comrade Kim Jong Un sent a birthday spread to Ri Ok Suk, a war veteran living in Neighbourhood Unit No. 14 of
January 23, 2026
The respected Comrade Kim Jong Un sent a birthday spread to Ri Ok Suk, a war veteran living in Neighbourhood Unit No. 14 of
Working people in Kaesong have remodelled the finishing building materials factory. The completion of the factory, furnished with
January 23, 2026
Working people in Kaesong have remodelled the finishing building materials factory. The completion of the factory, furnished with
In 1925 President Kim Il Sung made the 1 000-ri (250 miles) Journey for National Liberation with a lofty aim to win back his
January 23, 2026
In 1925 President Kim Il Sung made the 1 000-ri (250 miles) Journey for National Liberation with a lofty aim to win back his
More Articles
