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
Russian Deputy Foreign Minister Sergey Ryavkov censured the US’ confrontational policy at an international forum held at Moscow
April 23, 2024
Russian Deputy Foreign Minister Sergey Ryavkov censured the US’ confrontational policy at an international forum held at Moscow
There took place a drill on April 22 to operate super-large multiple rocket units that are to play an important role in
April 23, 2024
There took place a drill on April 22 to operate super-large multiple rocket units that are to play an important role in
The League of Arab States on April 15 issued a statement, in which it said that the offensive of armed Jewish settlers is expanded
April 23, 2024
The League of Arab States on April 15 issued a statement, in which it said that the offensive of armed Jewish settlers is expanded
The Chinese permanent representative to the United Nations, at a UN Security Council meeting on April 18, denounced the US for hav
April 23, 2024
The Chinese permanent representative to the United Nations, at a UN Security Council meeting on April 18, denounced the US for hav
A ceremony for moving into new houses took place at the Unjong Livestock Farm of the North Hwanghae Provincial Rural Economy
April 23, 2024
A ceremony for moving into new houses took place at the Unjong Livestock Farm of the North Hwanghae Provincial Rural Economy
Taekwon-Do trainees increase in number amid the lively social atmosphere of prioritizing and encouraging Taekwon-Do, the orthodox
April 23, 2024
Taekwon-Do trainees increase in number amid the lively social atmosphere of prioritizing and encouraging Taekwon-Do, the orthodox
The Sangwonam ginkgo is a staminate tree in the front yard of Sangwon Hermitage belonging to the Pohyon Temple in Mt Myohyang.It s
April 23, 2024
The Sangwonam ginkgo is a staminate tree in the front yard of Sangwon Hermitage belonging to the Pohyon Temple in Mt Myohyang.It s
The World Health Organization underlined the danger of H5N1 high pathogenic avian influenza virus which has recently spread among
April 23, 2024
The World Health Organization underlined the danger of H5N1 high pathogenic avian influenza virus which has recently spread among
The 33rd April Spring Friendship Art Festival is going on in the DPRK amid the great interest of the Korean people and the world
April 23, 2024
The 33rd April Spring Friendship Art Festival is going on in the DPRK amid the great interest of the Korean people and the world
A spokesman for the Iranian Foreign Ministry on April 18 rejected the double-dealing of the Group of Seven. Referring to the fact
April 22, 2024
A spokesman for the Iranian Foreign Ministry on April 18 rejected the double-dealing of the Group of Seven. Referring to the fact
A spokesman for the Chinese Foreign Ministry rejected Japan’s criticism against the country in a press conference on April 16.
April 22, 2024
A spokesman for the Chinese Foreign Ministry rejected Japan’s criticism against the country in a press conference on April 16.
The Russian permanent first deputy representative to the UN denounced the US’ shameless behaviour at the UNSC meeting on April
April 22, 2024
The Russian permanent first deputy representative to the UN denounced the US’ shameless behaviour at the UNSC meeting on April
Delegations and delegates of Juche idea study organizations left Pyongyang by air after attending the international seminar on the
April 22, 2024
Delegations and delegates of Juche idea study organizations left Pyongyang by air after attending the international seminar on the
From mountain village girl to world’s Taekwon-Do queen Jang Kyong Ok, winner of Kim Il Sung Youth Honour Prize, Labour Hero and
April 22, 2024
From mountain village girl to world’s Taekwon-Do queen Jang Kyong Ok, winner of Kim Il Sung Youth Honour Prize, Labour Hero and
A delegation of the Agricultural Commission led by Ri Chol Man, vice-premier and concurrently chairman of the Agricultural
April 22, 2024
A delegation of the Agricultural Commission led by Ri Chol Man, vice-premier and concurrently chairman of the Agricultural
The 37th National Festival of Science and Technology will be held at the Sci-Tech Complex in Pyongyang from April 26. The
April 22, 2024
The 37th National Festival of Science and Technology will be held at the Sci-Tech Complex in Pyongyang from April 26. The
A fairyland-like village has been built at the Pobu Farm in Kaechon City of South Phyongan Province. A meeting for moving into new
April 22, 2024
A fairyland-like village has been built at the Pobu Farm in Kaechon City of South Phyongan Province. A meeting for moving into new
The grand Taekwon-Do Holy House whose roof is covered with red tiles nestles in a thickly wooded forest in Sports Village on
April 22, 2024
The grand Taekwon-Do Holy House whose roof is covered with red tiles nestles in a thickly wooded forest in Sports Village on
Yevgeny Shestakov, vice foreign minister of Belarus, and his party left Pyongyang for home on April 19.
April 21, 2024
Yevgeny Shestakov, vice foreign minister of Belarus, and his party left Pyongyang for home on April 19.
State commendations were awarded to the players and coaches, who proved successful at the 22nd Taekwon-Do World Championships, and
April 21, 2024
State commendations were awarded to the players and coaches, who proved successful at the 22nd Taekwon-Do World Championships, and
More Articles
