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
Maria Zakharova, spokeswoman for the Russian Foreign Ministry, warned against Japan’s dangerous moves towards militarization at a
December 06, 2025
Maria Zakharova, spokeswoman for the Russian Foreign Ministry, warned against Japan’s dangerous moves towards militarization at a
Modern rural dwellings which have been built at the Jamjin Farm in Kangso District and the Ryongho Farm in Ryonggang County,
December 06, 2025
Modern rural dwellings which have been built at the Jamjin Farm in Kangso District and the Ryongho Farm in Ryonggang County,
An art troupe of Korean schoolchildren in Japan headed by Ri Chol Su, principal of Toshun Korean Primary School, arrived in
December 06, 2025
An art troupe of Korean schoolchildren in Japan headed by Ri Chol Su, principal of Toshun Korean Primary School, arrived in
The State Academy of Sciences developed the technologies for producing reduced iron and synthetic fuel oil based on coal
December 06, 2025
The State Academy of Sciences developed the technologies for producing reduced iron and synthetic fuel oil based on coal
The Tanchon Smeltery is the one and only business that has been selected as one of the top ten enterprises for three consecutive
December 06, 2025
The Tanchon Smeltery is the one and only business that has been selected as one of the top ten enterprises for three consecutive
The Public Prosecutor General of Venezuela on November 26 exposed and condemned the illegality of the attacks the US is mounting o
December 05, 2025
The Public Prosecutor General of Venezuela on November 26 exposed and condemned the illegality of the attacks the US is mounting o
The Vietnamese embassy in Pyongyang hosted a photo exhibition and reception at the Taedonggang Diplomatic Club on December 3 on
December 05, 2025
The Vietnamese embassy in Pyongyang hosted a photo exhibition and reception at the Taedonggang Diplomatic Club on December 3 on
A meeting took place at the Central Youth Hall in Pyongyang on December 3 to mark the International Day of Persons with
December 05, 2025
A meeting took place at the Central Youth Hall in Pyongyang on December 3 to mark the International Day of Persons with
The expedition of youth and students from across the DPRK to revolutionary battle sites in the area of Mt Paektu visited Chairman
December 05, 2025
The expedition of youth and students from across the DPRK to revolutionary battle sites in the area of Mt Paektu visited Chairman
The exhibition of products of Koryo medicine pharmaceutical factories-2025 closed with due ceremony at the Okryu Exhibition House
December 05, 2025
The exhibition of products of Koryo medicine pharmaceutical factories-2025 closed with due ceremony at the Okryu Exhibition House
New villages have been built at the Chongok Farm and the Jasan Farm in Phyongsong City of South Phyongan Province and the
December 05, 2025
New villages have been built at the Chongok Farm and the Jasan Farm in Phyongsong City of South Phyongan Province and the
South Phyongan Province has newly built the Institute of Agricultural Science. The comprehensive research base with research
December 05, 2025
South Phyongan Province has newly built the Institute of Agricultural Science. The comprehensive research base with research
Modern dwelling houses have been built at the Tongchon Farm in Cholsan County of North Phyongan Province and the Jonchang Farm in
December 05, 2025
Modern dwelling houses have been built at the Tongchon Farm in Cholsan County of North Phyongan Province and the Jonchang Farm in
North Hamgyong Province splendidly remodelled the Kyongsong Tile Factory. The remodelling of the factory furnished with efficient
December 05, 2025
North Hamgyong Province splendidly remodelled the Kyongsong Tile Factory. The remodelling of the factory furnished with efficient
A spokesman for the Chinese Foreign Ministry answered a question put by a journalist as to the US’ sanctions against Venezuela
December 04, 2025
A spokesman for the Chinese Foreign Ministry answered a question put by a journalist as to the US’ sanctions against Venezuela
Young people in South Phyongan Province volunteered one after another to work at coal mines in the province with the will to
December 04, 2025
Young people in South Phyongan Province volunteered one after another to work at coal mines in the province with the will to
The Third Plenary Meeting of the Eighth Central Committee of the Workers’ Party of Korea held in June 2021 adopted the childcare
December 04, 2025
The Third Plenary Meeting of the Eighth Central Committee of the Workers’ Party of Korea held in June 2021 adopted the childcare
DPRK scientists and technicians developed a disaster warning information system to ensure scientific, accurate and rapid disaster
December 04, 2025
DPRK scientists and technicians developed a disaster warning information system to ensure scientific, accurate and rapid disaster
Pak Thae Song, member of the Presidium of the Political Bureau of the Central Committee of the Workers' Party of Korea and premier
December 03, 2025
Pak Thae Song, member of the Presidium of the Political Bureau of the Central Committee of the Workers' Party of Korea and premier
The Central Committee of the Workers' Party of Korea sent a congratulatory message to the General Council of the United Russia
December 03, 2025
The Central Committee of the Workers' Party of Korea sent a congratulatory message to the General Council of the United Russia
More Articles
