하이브리드 태양전지 제작에 있어서 유기물의 후열처리 온도에 따른 단락전류밀도의 변화
The Changes of Short Circuit Current Density according to the Post-annealing Temperature of Organic Materials in the Hybrid Photovoltaics
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본 연구에서는 Poly (3-hexylthiophene-2,5-diyl) (P3HT):[6,6]-Phenyl C61 butyric acid methyl ester (PCBM)과 GaN를 이용하여 유무기 하이브리드 광전변환소자를 제작함에 있어서, P3HT:PCBM 활성층의 열처리가 소자의 단락전류밀도에 미치는 영향을 알아보았으며 이때 유기물의 농도와 혼합비율을 달리 하였다. 유기물 각각의 층을 코팅하여 층을 만들 때마다 열처리 한 경우, 즉 pre-annealing샘플과 pre-annealing 과정을 거쳐 제작된 소자 전체를 한 번 더 열처리하여 즉post-annealing까지 행한 샘플을 비교하였다. 그 결과 post-annealing한 샘플이 더 높은 단락전류밀도의 값을 가졌고 이때P3HT와 PCBM은 1wt%와 1:1 혼합비율에서 좋은 열처리 효과를 나타내었다.
Abstract
The organic/inorganic hybrid photovoltaic devices have been studied using Poly(3-hexylthiophene-2,5-diyl) (P3HT) : [6,6]-Phenyl C61 butyric acid methyl ester (PCBM) and GaN. We traced the effect of short circuit current density with differentannealing method under the various concentration and ratio of P3HT:PCBM. During the pre-annealing course, the heat treatmentswere performed each time at low temperature after the organic layer coated and the samples were heated at high temperaturethrough one or two steps under the post-annealing process. It revealed that the samples with post-annealing processhad higher values of short circuit current density than the other samples upon pre-annealing. And the interesting high short circuitcurrent density features were observed at 1:1 mixing ratio and 1wt% of P3HT:PCBM.
참고문헌 (16)
- D. S. Bae, "Trends of the solar cell technology", Cerami-st, 13(1), pp.20~27 (2010)
- B. Ray, "Random vs regularized OPV :Limits of performance gain of organic bulk heterojunction solar cells by morphology engineering", Solar Energy Materials & Solar Cells, 99(special), pp.204~212 (2012)
- J. Y. Lee, "Toward the commercialization of organic photovoltaic cells", Physics & High Technology (2012)
- X. Wang, "High-resolution spectroscopic mapping of the chemical contrast from nanometer domains in P3HT:PCBM organic blend films for solar-cell applications", Advanced Functional Materials, 20(3), pp.492~499 (2010)
- S. Miller, "Investigation of nanoscale morphological changes in organic photovoltaics during solvent vapor annealing", Journal of Materials Chemistry, 18(3), pp.306~312 (2008)
- E. Klimov, "Scanning near-field and confocal raman microscopic investigation of P3HT-PCBM systems for solar cell applications", Macromolecules, 39(13), pp.4493~4496 (2006)
- A. A. Farah, "Conductivity enhancement ofpoly (3,4-ethylenedioxythiophene)-poly (styrenesufonate)films post-spincasting", Journal Applied Physics, 112(11), pp.113709~ (2012)
- J. P. Thomas, "High-efficiency hybrid solar cells by nanostructural modification in PEDOT:PSS with co-solvent addition", Journal of Materials Chemistry A, 2(7), pp.2393~2389 (2014)
- S. Sakamoto, "Raman spectral changes of PEDOT–PSS in polymer light-emitting diodes upon operation", Chemical Physics Letters, 412(4), pp.395~398 (2005)
- Z. C. Feng, "Raman scattering properties of GaN thin films grown on sapphire under visible and ultraviolet excitation", Journal of Raman Spectroscopy, 32(10), pp.840~846 (2001)
- C. R. Das, "The mechanism of the recrystallization process in epitaxial GaN under dynamic stress field :atomistic origin of planar defect formation", Journal of Raman Spectroscopy, 40(12), pp.1881~1884 (2009)
- P. Kumar, "Hybrid n-GaN and polymer interfaces :Model systems for tunable photodiodes", Organic Electronics, 14(11), pp.2818~2825 (2013)
- V. Shrotriya, "Absorption spectra modification in poly (3-hex yl thiophene) : methanofullerene blend thin films", Chemical Physics Letters, 411(2), pp.138~143 (2005)
- L. Dan, "Influence of donor and acceptor mass ratios on P3HT:PCBM film structure and device performance", Acta Physica Sinica, 28(6), pp.1373~1379 (2012)
- H. j. Kim, "The importance of post-annealing process in the device performance of poly (3-hexylthiophene) : Methanofullerene polymer solar cell", Energy Materials & Solar Cells, 91(7), pp.581~587 (2007)
- Y. C. Huang, "Study of the effect of annealing process on the performance of P3HT", PCBM photovoltaic devices using scanning-probe microscopy, 2009, pp.93(6), 888~892