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 situation of children is getting worse in many countries and regions of the world with each passing day. Disputes and armed
November 25, 2025
The situation of children is getting worse in many countries and regions of the world with each passing day. Disputes and armed
New modern houses have been built in Ryongchon-dong, Saemunhwa-dong, Ponsan-dong, Jonjin-dong No. 2 and Taehung-dong No. 1 of
November 25, 2025
New modern houses have been built in Ryongchon-dong, Saemunhwa-dong, Ponsan-dong, Jonjin-dong No. 2 and Taehung-dong No. 1 of
Russian President Vladimir Putin stressed that no statute of limitations applies to the crimes committed by Nazis in his
November 25, 2025
Russian President Vladimir Putin stressed that no statute of limitations applies to the crimes committed by Nazis in his
The 18th national symposium of health workers on experience of devoted service took place at the Myohyangsan Medical Appliances
November 25, 2025
The 18th national symposium of health workers on experience of devoted service took place at the Myohyangsan Medical Appliances
Kim Chaek University of Technology carried out the major research projects planned for this year ahead of schedule. Research teams
November 25, 2025
Kim Chaek University of Technology carried out the major research projects planned for this year ahead of schedule. Research teams
Russian President Vladimir Putin took part online in a ceremony of laying down the keel of the nuclear-powered ice-breaker
November 24, 2025
Russian President Vladimir Putin took part online in a ceremony of laying down the keel of the nuclear-powered ice-breaker
The proud entities of rural development have been created one after another in Rason Municipality, which is located in the
November 24, 2025
The proud entities of rural development have been created one after another in Rason Municipality, which is located in the
A fairyland village has appeared at the Hyongsan Vegetable Farm in Hyongjesan District of Pyongyang Municipality. The picturesque
November 24, 2025
A fairyland village has appeared at the Hyongsan Vegetable Farm in Hyongjesan District of Pyongyang Municipality. The picturesque
The Namap Farm in Yomju County in North Phyongan Province, one of the country’s ten best agricultural counties in 2024, has
November 24, 2025
The Namap Farm in Yomju County in North Phyongan Province, one of the country’s ten best agricultural counties in 2024, has
Thousands of junior officials and members of the women’s union in Ryanggang Province have volunteered for major fronts for
November 24, 2025
Thousands of junior officials and members of the women’s union in Ryanggang Province have volunteered for major fronts for
Rapid population growth and economic development are accompanied by the consumption of huge amounts of resources. The resources
November 23, 2025
Rapid population growth and economic development are accompanied by the consumption of huge amounts of resources. The resources
Kim Yong Rok was born and bred in Chollima District, Nampho Municipality. Unfortunately, he was injured in his two arms in an
November 23, 2025
Kim Yong Rok was born and bred in Chollima District, Nampho Municipality. Unfortunately, he was injured in his two arms in an
As the US plans new military exercises in the Caribbean, the Venezuelan President called for consistently heightening vigilance
November 23, 2025
As the US plans new military exercises in the Caribbean, the Venezuelan President called for consistently heightening vigilance
Young people in Kaesong and Rason municipalities volunteered to work on major fronts for implementing the decisions of the Workers
November 22, 2025
Young people in Kaesong and Rason municipalities volunteered to work on major fronts for implementing the decisions of the Workers
A hot wind of volunteering is blowing across the country. Young people in all parts of the country including the capital city of
November 22, 2025
A hot wind of volunteering is blowing across the country. Young people in all parts of the country including the capital city of
According to data available, the number of applicants for immigration into Europe has steadily increased in recent years. The
November 22, 2025
According to data available, the number of applicants for immigration into Europe has steadily increased in recent years. The
The deputy prime minister of Italy asserted on November 14 that the additional support for Ukraine would not help end the war with
November 22, 2025
The deputy prime minister of Italy asserted on November 14 that the additional support for Ukraine would not help end the war with
A performance “Our Marshal and the People of Kangwon Province” was given at the Kangwon Provincial Art Theatre on November 20
November 22, 2025
A performance “Our Marshal and the People of Kangwon Province” was given at the Kangwon Provincial Art Theatre on November 20
An event took place at the Taedongmun Kindergarten in Central District of Pyongyang on November 20 to mark Child Health Day.
November 22, 2025
An event took place at the Taedongmun Kindergarten in Central District of Pyongyang on November 20 to mark Child Health Day.
Working people in the northernmost part of the country are leading a blessed life while enjoying rural civilization. New modern
November 22, 2025
Working people in the northernmost part of the country are leading a blessed life while enjoying rural civilization. New modern
More Articles
