S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Material Science and Engineering (재료공학부) Theses (Master's Degree_재료공학부)
PSSA–g–PANI/Graphene Oxide Composite as a New Class of Hole Transport Layer for Enhanced Performance of Polymer Solar Cells
PSSA-g-PANI/Graphene Oxide 복합체의 유기태양전지 정공 수송 층으로의 적용과
- 공과대학 재료공학부
- Issue Date
- 서울대학교 대학원
- 학위논문 (석사)-- 서울대학교 대학원 : 재료공학부, 2014. 2. 조원호.
- A new class of hole transport layer (HTL), which is composed of poly(styrene sulfonic acid) grafted with polyaniline (PSSA–g–PANI) and graphene oxide (GO), was prepared by adding GO into PSSA–g–PANI aqueous solution. The PSSA–g–PANI/GO composites exhibit high optical transparency and high electrical conductivity. When the composite with 2.5 wt% GO loading was used as HTL material for the device based on poly(3-hexylthiophene) and PC61BM, the device exhibits an enhanced power conversion efficiency (PCE) of 4.23%, which is 23% higher than the PCE of device with the conventional HTL material, PEDOT:PSS. This enhancement of PCE arises mainly from an increase of the short-circuit current density due to higher optical transparency and higher electrical conductivity of PSSA–g–PANI/GO composite.