콘텐츠 본문
논문 해외 국제전문학술지(SCI급) A DISCUSSION ON THE ORIGIN AND SOLUTIONS OF HYSTERESIS IN PEROVSKITE HYBRID SOLAR CELLS
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2016-10
- 저자명 홍기하공동(참여)
- 학술지명 JOURNAL OF PHYSICS D: APPLIED PHYSICS
- 발행처명 IOP Publishing Group
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 9
논문 초록 (Abstract)
Although the record efficiencies of perovskite hybrid solar cells are gradually reaching the efficiency of crystalline Si solar cells, perovskite hybrid solar cells often exhibit significant current density–voltage (J–V) hysteresis with respect to the forward and reverse scan direction and scan rate. The origin of the J–V hysteresis of perovskite hybrid solar cells has not, to date, been clearly elucidated. Dielectric polarization by the ferroelectric properties of perovskite (i), the ionic motion/migration of perovskite materials (ii), and charge trapping and detrapping at trap sites by the unbalanced electron and hole flux (iii) are considered the possible origins of J–V hysteresis. Here, we reviewed the origin of the J–V hysteresis of perovskite solar cells from the above three points of view and we then suggest how one may reduce the J–V hysteresis with respect to the scan direction and scan rate
