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
The Wonsan General Fishing Implements Factory was inaugurated in Kangwon Province. The respected Comrade Kim Jong Un gave
January 14, 2026
The Wonsan General Fishing Implements Factory was inaugurated in Kangwon Province. The respected Comrade Kim Jong Un gave
The Cameroonian President warned that the crises and conflicts that are worsening all across the world constitute great threats to
January 14, 2026
The Cameroonian President warned that the crises and conflicts that are worsening all across the world constitute great threats to
The Vietnamese prime minister mentioned the country’s economic development at a government meeting on January 8. He said that
January 14, 2026
The Vietnamese prime minister mentioned the country’s economic development at a government meeting on January 8. He said that
Modern houses have been built at the Hwangju Township Farm of the North Hwanghae Provincial Rural Economy Committee and the
January 14, 2026
Modern houses have been built at the Hwangju Township Farm of the North Hwanghae Provincial Rural Economy Committee and the
There took place a seminar for deeply grasping the immortal leadership exploits of President Kim Il Sung, Chairman Kim Jong Il and
January 14, 2026
There took place a seminar for deeply grasping the immortal leadership exploits of President Kim Il Sung, Chairman Kim Jong Il and
A photo exhibition "Bringing up a large contingent of successors to the revolution and patriotic youth with great politics of
January 14, 2026
A photo exhibition "Bringing up a large contingent of successors to the revolution and patriotic youth with great politics of
Russian Foreign Ministry spokeswoman Maria Zakharova on January 8 warned the West against deploying armed forces in Ukraine.
January 13, 2026
Russian Foreign Ministry spokeswoman Maria Zakharova on January 8 warned the West against deploying armed forces in Ukraine.
The Sixth Memory Contest of University Students took place last year bringing together excellent students selected from different
January 13, 2026
The Sixth Memory Contest of University Students took place last year bringing together excellent students selected from different
At a time when new villages are springing up across the DPRK, new houses have been built at the Yaksan Farm in Songhwa County and
January 13, 2026
At a time when new villages are springing up across the DPRK, new houses have been built at the Yaksan Farm in Songhwa County and
2025 was a year when the DPRK powerfully promoted its economic development on the strength of science and technology. Scientific
January 13, 2026
2025 was a year when the DPRK powerfully promoted its economic development on the strength of science and technology. Scientific
The phrase “Groundbreaking means inauguration” was coined in the DPRK as lots of edifices for the well-being of the people are
January 13, 2026
The phrase “Groundbreaking means inauguration” was coined in the DPRK as lots of edifices for the well-being of the people are
Many units in the key industries of the DPRK have carried out their production plans for the first ten days of January. The Kim
January 13, 2026
Many units in the key industries of the DPRK have carried out their production plans for the first ten days of January. The Kim
The Korean people uphold and follow the respected Comrade Kim Jong Un as their dear father. He is the father of the great family
January 12, 2026
The Korean people uphold and follow the respected Comrade Kim Jong Un as their dear father. He is the father of the great family
From the outset of the new year, the present ultra-right ruling forces of Japan are adding a serious danger to the security
January 12, 2026
From the outset of the new year, the present ultra-right ruling forces of Japan are adding a serious danger to the security
The Danish prime minister rejected the US’ attempt to annex Greenland in a radio interview on January 5.As regards the US chief ex
January 12, 2026
The Danish prime minister rejected the US’ attempt to annex Greenland in a radio interview on January 5.As regards the US chief ex
A spokesman for the EU Commission on January 5 took a stand against the US ruler’s remarks revealing the intention to gain
January 12, 2026
A spokesman for the EU Commission on January 5 took a stand against the US ruler’s remarks revealing the intention to gain
means devising one’s way to live by one’s own determination and efforts without relying on others. The DPRK’s history of
January 12, 2026
means devising one’s way to live by one’s own determination and efforts without relying on others. The DPRK’s history of
A meeting with sportspersons who won the international games in 2025 was held on January 9. Present there were Kim Il Guk,
January 12, 2026
A meeting with sportspersons who won the international games in 2025 was held on January 9. Present there were Kim Il Guk,
Officials of ministries and national agencies in the DPRK did the first Friday labour of the new year at farms in Pyongyang on
January 12, 2026
Officials of ministries and national agencies in the DPRK did the first Friday labour of the new year at farms in Pyongyang on
New houses have been built in Sambong-ri of Phyongwon County and Yonphung-ri of Anju City, South Phyongan Province. Attending the
January 12, 2026
New houses have been built in Sambong-ri of Phyongwon County and Yonphung-ri of Anju City, South Phyongan Province. Attending the
More Articles
