repository
박막모폴로지와 전하 재결합이 다이케토피롤로피롤 기반 고분자 근적외선 포토디텍터의 성능에 미치는 영향에 대한 연구
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | 김종현 | - |
| dc.contributor.author | 이대운 | - |
| dc.date.accessioned | 2019-04-01T16:41:52Z | - |
| dc.date.available | 2019-04-01T16:41:52Z | - |
| dc.date.issued | 2019-02 | - |
| dc.identifier.other | 28351 | - |
| dc.identifier.uri | https://dspace.ajou.ac.kr/handle/2018.oak/15150 | - |
| dc.description | 학위논문(석사)--아주대학교 일반대학원 :분자과학기술학과,2019. 2 | - |
| dc.description.tableofcontents | Introduction Experimental section Results and discussion Conclusion Figures References | - |
| dc.language.iso | kor | - |
| dc.publisher | The Graduate School, Ajou University | - |
| dc.rights | 아주대학교 논문은 저작권에 의해 보호받습니다. | - |
| dc.title | 박막모폴로지와 전하 재결합이 다이케토피롤로피롤 기반 고분자 근적외선 포토디텍터의 성능에 미치는 영향에 대한 연구 | - |
| dc.title.alternative | Dae Woon Lee | - |
| dc.type | Thesis | - |
| dc.contributor.affiliation | 아주대학교 일반대학원 | - |
| dc.contributor.alternativeName | Dae Woon Lee | - |
| dc.contributor.department | 일반대학원 분자과학기술학과 | - |
| dc.date.awarded | 2019. 2 | - |
| dc.description.degree | Master | - |
| dc.identifier.localId | 905416 | - |
| dc.identifier.uci | I804:41038-000000028351 | - |
| dc.identifier.url | http://dcoll.ajou.ac.kr:9080/dcollection/common/orgView/000000028351 | - |
| dc.description.alternativeAbstract | Near-infrared (NIR) photodetectors sensitive to 860 nm were fabricated through a solution process with two different conjugated polymers (CPs) sharing a similar conjugated backbone consisting of the diketopyrrolopyrrole (DPP) moiety. The two CPs had comparable conjugated nature, but their detection capability was significantly distinguished by the applied linker units, thiophene for PDPP-T and fluorinated thiophene for PDPP-FBT. First, it has been revealed that employing additive during active film preparation is beneficial to achieve optimum film morphology for both CPs, which can suppress dark current and provide enhanced detectivity. In addition, when a highly electronegative fluorine atom that induces a surface dipole was introduced into the conjugated skeleton, it has been clearly demonstrated by transient photovoltage measurement that the charge recombination time is lengthened, which implies the increase of possibility of charge extraction in actual device through reducing the charge recombination. Thus, PDPP-FBT exhibited higher external quantum efficiency and responsivity overall wavelength. Our results indicate that the management of both film morphology and surface dipole of CP are evenly important to achieve high detectivity and responsivity in organic NIR photodetectors. | - |
- Appears in Collections:
- Graduate School of Ajou University > Department of Molecular Science and Technology > 3. Theses(Master)
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
-
- License
- STATISTICS
- Total Visit :3,540,459
- Total Download :1,795
- Today View :2,824
