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
There came an epoch-making success of concluding the construction of 50 000 flats in Pyongyang, which had powerfully been carried
February 17, 2026
There came an epoch-making success of concluding the construction of 50 000 flats in Pyongyang, which had powerfully been carried
Russian Foreign Minister Sergey Lavrov mentioned the orientation of the country’s diplomatic work in a video speech on February
February 17, 2026
Russian Foreign Minister Sergey Lavrov mentioned the orientation of the country’s diplomatic work in a video speech on February
The Hungarian minister of Foreign Affairs and Trade criticized the forced army recruitment which is being enforced in Ukraine with
February 17, 2026
The Hungarian minister of Foreign Affairs and Trade criticized the forced army recruitment which is being enforced in Ukraine with
The respected Comrade Kim Jong Un received a congratulatory letter from the General Association of Koreans in China on February
February 17, 2026
The respected Comrade Kim Jong Un received a congratulatory letter from the General Association of Koreans in China on February
The respected Comrade Kim Jong Un received a congratulatory letter from the Central Standing Committee of the General Association
February 17, 2026
The respected Comrade Kim Jong Un received a congratulatory letter from the Central Standing Committee of the General Association
Lunar New Year’s Day is one of the greatest national folk holidays of the Korean people. From ancient times, each family cleaned
February 17, 2026
Lunar New Year’s Day is one of the greatest national folk holidays of the Korean people. From ancient times, each family cleaned
Saeppyol Street has made an imposing appearance in an excellent location in the Hwasong area of Pyongyang, the capital of the
February 16, 2026
Saeppyol Street has made an imposing appearance in an excellent location in the Hwasong area of Pyongyang, the capital of the
Present here today are the bereaved family members of the fallen soldiers and other combatants as well as the combatants of the
February 16, 2026
Present here today are the bereaved family members of the fallen soldiers and other combatants as well as the combatants of the
A congratulatory group of Koreans in Japan led by Ko Tok U, chairman of the Tokyo Metropolitan Headquarters of the General
February 16, 2026
A congratulatory group of Koreans in Japan led by Ko Tok U, chairman of the Tokyo Metropolitan Headquarters of the General
A spokesman for the Chinese Foreign Ministry rejected the reckless remarks of the Japanese prime minister at a press conference on
February 16, 2026
A spokesman for the Chinese Foreign Ministry rejected the reckless remarks of the Japanese prime minister at a press conference on
When February comes every year, Min Hong Dan, an officer of the Korean People’s Army, remembers the extraordinary story of her nam
February 16, 2026
When February comes every year, Min Hong Dan, an officer of the Korean People’s Army, remembers the extraordinary story of her nam
Flower baskets were sent to the statues of President Kim Il Sung and Chairman Kim Jong Il on Mansu Hill in Pyongyang by the
February 16, 2026
Flower baskets were sent to the statues of President Kim Il Sung and Chairman Kim Jong Il on Mansu Hill in Pyongyang by the
Seminars on exploits of Chairman Kim Jong Il were held in Cambodia, Pakistan, Romania, the Czech Republic and Algeria from January
February 15, 2026
Seminars on exploits of Chairman Kim Jong Il were held in Cambodia, Pakistan, Romania, the Czech Republic and Algeria from January
An international organization, personages of foreign countries, families of persons related to the anti-Japanese revolutionary
February 15, 2026
An international organization, personages of foreign countries, families of persons related to the anti-Japanese revolutionary
Russian Foreign Minister Sergey Lavrov condemned the United States and the West for pursuing a hostile policy in an interview on
February 15, 2026
Russian Foreign Minister Sergey Lavrov condemned the United States and the West for pursuing a hostile policy in an interview on
Art group members of the Mangyongdae Schoolchildren's Palace gave a performance "Song of happiness resounding in the sky of
February 15, 2026
Art group members of the Mangyongdae Schoolchildren's Palace gave a performance "Song of happiness resounding in the sky of
The commander-in-chief of the Iranian army referred to the enemy’s acts of provocation in a meeting of commanding officers of
February 15, 2026
The commander-in-chief of the Iranian army referred to the enemy’s acts of provocation in a meeting of commanding officers of
Youth and students met with socialist patriotic young pioneers at the hall of the youth league on February 13. Speeches were made
February 15, 2026
Youth and students met with socialist patriotic young pioneers at the hall of the youth league on February 13. Speeches were made
Chinese Ambassador to the DPRK Wang Yajun on February 12 hosted a reception at his embassy on the occasion of the lunar New Year's
February 14, 2026
Chinese Ambassador to the DPRK Wang Yajun on February 12 hosted a reception at his embassy on the occasion of the lunar New Year's
The 25th National Youth and Children's Festival of Loyalty opened in the DPRK on the occasion of the auspicious February holiday,
February 14, 2026
The 25th National Youth and Children's Festival of Loyalty opened in the DPRK on the occasion of the auspicious February holiday,
More Articles
