DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Chung, In-Jae | - |
dc.contributor.advisor | 정인재 | - |
dc.contributor.author | Kim, Jung-Yong | - |
dc.contributor.author | 김정용 | - |
dc.date.accessioned | 2011-12-13T01:36:21Z | - |
dc.date.available | 2011-12-13T01:36:21Z | - |
dc.date.issued | 2004 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=237624&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/28929 | - |
dc.description | 학위논문(박사) - 한국과학기술원 : 생명화학공학과, 2004.2, [ xx, 221 p. ] | - |
dc.description.abstract | This thesis have focused on the organic thin film and inorganic nanocrystals for photovoltaic device application. In Chapter 2: An organic photovoltaic cell was fabricated, with the configuration ITO/zinc phthalocyanine (ZnPc)/N,N``-diheptyl-3,4,9,10-perylenebiscarboximide (PTCDI-C7) (PTCDI) /Ga:In. PTCDI is a liquid crystal and acts as an electron acceptor organic material while ZnPc corresponds to a donor. The cell performance under illumination was examined with different organic layer thickness. A cell incorporating 25 nm thick organic layers showed a short circuit photocurrent ($I_SC$) of 1.6mA/㎠, an open circuit photovoltage ($V_OC$) of 0.6 V, and a fill factor (FF) of 0.4 with white Xe light illumination (wavelength≥400 nm) with an intensity of 100mW/㎠. In Chapter 3: Molecular orbital energy levels of perylene-bis(phenylbutylimide) (PPBI) were estimated by electrochemical and optical methods. Then the photo-device with an ITO/PPBI/Al structure, was fabricated to measure charge mobility by time-of-fight techniques. Electron was observed to be faster than holes, which display that PPBI is an n-type organic semiconductor. When the evaporated film on PPBI on ITO was annealed and fabricated as a device, the electron mobility was decreased. In Chapter 4: An organic photocell with an ITO/N,N``-diheptyl-3,4,9,10-perylenebiscarboximide (PTCDI-C7)/Al structure was fabricated to measure charge mobility by time-of-fight techniques. Electrons were observed to be faster than holes due to its n-type characters. Furthermore, a photocell incorporating an annealed PTCDI-C7 film showed an improved mobility due to better organized structure originating from its liquid crystalline (LC) characters. In Chapter 5: N,N``-dioctadecyl-3,4,9,10-perylenebiscarboximide thin film on ITO glass, produced a photocurrent, when immersed in an electrolyte solution containing a redox couple and illuminated. The photocurrent was investigated against bias potential, and concentration and type ... | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | SOLAR | - |
dc.subject | ORGANIC | - |
dc.subject | CELL | - |
dc.subject | 전지 | - |
dc.subject | 태양 | - |
dc.subject | 유기 | - |
dc.title | Photoelectrochemical and optoelectronic processes in organic thin films and inorganic nanocrystals | - |
dc.title.alternative | 유기 박막 및 무기 나노결정의 광전기화학적 광전자적 거동 : 고효율 광전압 나노소자 | - |
dc.type | Thesis(Ph.D) | - |
dc.identifier.CNRN | 237624/325007 | - |
dc.description.department | 한국과학기술원 : 생명화학공학과, | - |
dc.identifier.uid | 020005067 | - |
dc.contributor.localauthor | Chung, In-Jae | - |
dc.contributor.localauthor | 정인재 | - |
dc.title.subtitle | high efficient photovoltaic nano-devices | - |
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