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
Dmitri Medvedev, vice-chairman of the Russian Security Council, referred to the issue of ensuring strategic security in an intervi
February 01, 2026
Dmitri Medvedev, vice-chairman of the Russian Security Council, referred to the issue of ensuring strategic security in an intervi
Members of the Iranian Parliament issued a statement on January 25 to strongly denounce the European Parliament for adopting an an
February 01, 2026
Members of the Iranian Parliament issued a statement on January 25 to strongly denounce the European Parliament for adopting an an
North Hwanghae Province finished the capacity expansion project of the Kyongam Cement Factory. The establishment of a
February 01, 2026
North Hwanghae Province finished the capacity expansion project of the Kyongam Cement Factory. The establishment of a
Residents in the Central Zoo in Pyongyang are on the increase. This year alone five species of gift animals produced more than ten
February 01, 2026
Residents in the Central Zoo in Pyongyang are on the increase. This year alone five species of gift animals produced more than ten
Graduating class students of senior middle schools in Kanggye City met with a war veteran. Students presented bouquets to war
January 31, 2026
Graduating class students of senior middle schools in Kanggye City met with a war veteran. Students presented bouquets to war
Dmitri Peskov, the Russian president’s press secretary, described European politicians as pitiable persons at a press conference o
January 31, 2026
Dmitri Peskov, the Russian president’s press secretary, described European politicians as pitiable persons at a press conference o
A happy event of moving into new houses has taken place at rural villages in Sinchon and Pongchon counties of South Hwanghae
January 31, 2026
A happy event of moving into new houses has taken place at rural villages in Sinchon and Pongchon counties of South Hwanghae
On January 22, the US formally left the WHO. The US claimed that its decision to leave the WHO was a reflection of the
January 31, 2026
On January 22, the US formally left the WHO. The US claimed that its decision to leave the WHO was a reflection of the
Strategic plan based on long-cherished desire The respected General Secretary Kim Jong Un unveiled a grand blueprint for the
January 31, 2026
Strategic plan based on long-cherished desire The respected General Secretary Kim Jong Un unveiled a grand blueprint for the
The Sangwon Cement Complex carried out its national economic plan for January ahead of schedule. The complex conducted
January 31, 2026
The Sangwon Cement Complex carried out its national economic plan for January ahead of schedule. The complex conducted
Maria Zakharova, a spokeswoman for the Russian Foreign Ministry, criticized the French president for his provocative remarks at a
January 30, 2026
Maria Zakharova, a spokeswoman for the Russian Foreign Ministry, criticized the French president for his provocative remarks at a
A spokesman for the Chinese Ministry of Commerce condemned the inappropriate behaviour of the European Union at a news briefing on
January 30, 2026
A spokesman for the Chinese Ministry of Commerce condemned the inappropriate behaviour of the European Union at a news briefing on
The Jagang Provincial Forestry Management Bureau is making innovations in the winter timber production. Thanks to the devoted
January 30, 2026
The Jagang Provincial Forestry Management Bureau is making innovations in the winter timber production. Thanks to the devoted
North Hwanghae Province has remodelled the Unpha Cement Factory and the Unpha Corrugated Paper Mill. Their successful renovation
January 30, 2026
North Hwanghae Province has remodelled the Unpha Cement Factory and the Unpha Corrugated Paper Mill. Their successful renovation
A meeting to review the farming in 2025 took place at the Cabinet on January 27 and 28 through video conferencing. The meeting was
January 30, 2026
A meeting to review the farming in 2025 took place at the Cabinet on January 27 and 28 through video conferencing. The meeting was
Kim Jong Un, president of the State Affairs of the Democratic People’s Republic of Korea, was presented with the credentials of
January 30, 2026
Kim Jong Un, president of the State Affairs of the Democratic People’s Republic of Korea, was presented with the credentials of
Modern houses have appeared at the Churung Farm in Samchon County and the Sinhwanpho Farm in Jaeryong County of South Hwanghae
January 30, 2026
Modern houses have appeared at the Churung Farm in Samchon County and the Sinhwanpho Farm in Jaeryong County of South Hwanghae
A conference of the headquarters of the Central Committee of the Workers' Party of Korea was held on January 28 amid the
January 30, 2026
A conference of the headquarters of the Central Committee of the Workers' Party of Korea was held on January 28 amid the
The respected Comrade Kim Jong Un sent a birthday spread to Ju Chun Jo, a woman living in Neighbourhood Unit No. 12 of the
January 30, 2026
The respected Comrade Kim Jong Un sent a birthday spread to Ju Chun Jo, a woman living in Neighbourhood Unit No. 12 of the
A regional construction campaign for 2026 started in the DPRK, demonstrating the steadfast pioneering spirit and executive faculty
January 30, 2026
A regional construction campaign for 2026 started in the DPRK, demonstrating the steadfast pioneering spirit and executive faculty
More Articles
