지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수1
1. Introduction 62. Theory 92.1. Organic photovoltaics. 92.2. Operation principle of OPVs. 122.2.1. Light absorption. 122.2.2. Exciton diffusion. 122.2.3. Exciton dissociation. 132.2.4. Charge transport and charge collection. 132.3. Current-voltage properties and parameters of OPVs. 152.4. Organic semiconducting materials. 192.5. Strategy for high performance organic semiconducting materials. 212.6. Tuning the properties of p-type conjugated polymers. 242.7. Synthesis of DA-type conjugated materials. 263. Experimental 283.1. Materials and characterization. 283.2. Synthetic route of donor materials. 293.2.1. Synthesis of 2-(hex-5-en-1-yl)thiophene (1). 293.2.2. Synthesis of 3-chloro-2-(hex-5-en-1-yl)thiophene (2). 293.2.3. Synthesis of 4,8-bis(5-(hex-5-en-1-yl)thiophen-2-yl)benzo[1,2-b:4,5-b'']dithiophene (3). 303.2.4. Synthesis of 4,8-bis(4-chloro-5-(hex-5-en-1-yl)thiophen-2-yl)benzo[1,2-b:4,5-b'']dithiophene (4). 303.2.5. Synthesis of 4,8-bis(5-(6-(1,1,1,3,5,5,5-heptamethyltrisiloxan-3-yl)hexyl)thiophen-2-yl)benzo[1,2-b:4,5-b'']dithiophene (5). 313.2.6. Synthesis of 4,8-bis(4-chloro-5-(6-(1,1,1,3,5,5,5-heptamethyltrisiloxan-3-yl)hexyl)thiophen-2-yl)benzo[1,2-b:4,5-b'']dithiophene (6). 313.2.7. Synthesis of 3,3''-((5,5''-(2,6-bis(trimethylstannyl)benzo[1,2-b:4,5-b'']dithiophene-4,8-diyl)bis(thiophene-5,2-diyl))bis(hexane-6,1-diyl))bis(1,1,1,3,5,5,5-heptamethyltrisiloxane) (D1). 313.2.8. Synthesis of 3,3''-((5,5''-(2,6-bis(trimethylstannyl)benzo[1,2-b:4,5-b'']dithiophene-4,8-diyl)bis(3-chlorothiophene-5,2-diyl))bis(hexane-6,1-diyl))bis(1,1,1,3,5,5,5-heptamethyltrisiloxane) (D2). 323.3. Synthetic route of acceptor materials. 343.3.1. Synthesis of 2,5-dibromothiophene-3,4-dicarboxylic acid (1). 343.3.2. Synthesis of 2,5-dibromothiophene-3,4-dicarbonyl dichloride (2). 343.3.3. Synthesis of 1,3-dibromo-5,7-bis(2-ethylhexyl)benzo[1,2-c:4,5-c'']dithiophene-4,8-dione (3). 343.3.4. Synthesis of 1,3-bis(2-ethylhexyl)-5,7-di(thiophen-2-yl)benzo[1,2-c:4,5-c'']dithiophene-4,8-dione (4). 353.3.5. Synthesis of 1,3-bis(2-ethylhexyl)-5,7-bis(4-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-c:4,5-c'']dithiophene-4,8-dione (5). 353.3.6. Synthesis of 1,3-bis(5-bromothiophen-2-yl)-5,7-bis(2-ethylhexyl)benzo[1,2-c:4,5-c'']dithiophene-4,8-dione (A1). 363.3.7. Synthesis of 1,3-bis(5-bromo-4-(2-ethylhexyl)thiophen-2-yl)-5,7-bis(2-ethylhexyl)benzo[1,2-c:4,5-c'']dithiophene-4,8-dione (A2). 363.4. General polymerization procedure for P1-P4. 383.4.1. Synthesis of Poly[1-(5-(4,8-bis(5-(6-(1,1,1,3,5,5,5-heptamethyltrisiloxan-3-yl)hexyl)thiophen-2-yl)benzo[1,2-b:4,5-b'']dithiophen-2-yl)thiophen-2-yl)-5,7-bis(2-ethylhexyl)-3-(thiophen-2-yl)benzo[1,2-c:4,5-c'']dithiophene-4,8-dione] (P1). 383.4.2. Synthesis of Poly[1-(5-(4,8-bis(5-(6-(1,1,1,3,5,5,5-heptamethyltrisiloxan-3-yl)hexyl)thiophen-2-yl)benzo[1,2-b:4,5-b'']dithiophen-2-yl)-4-(2-ethylhexyl)thiophen-2-yl)-5,7-bis(2-ethylhexyl)-3-(4-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-c:4,5-c'']dithiophene-4,8-dione] (P2). 383.4.3. Synthesis of Poly[1-(5-(4,8-bis(4-chloro-5-(6-(1,1,1,3,5,5,5-heptamethyltrisiloxan-3-yl)hexyl)thiophen-2-yl)benzo[1,2-b:4,5-b'']dithiophen-2-yl)thiophen-2-yl)-5,7-bis(2-ethylhexyl)-3-(thiophen-2-yl)benzo[1,2-c:4,5-c'']dithiophene-4,8-dione] (P3). 393.4.4. Synthesis of Poly[1-(5-(4,8-bis(4-chloro-5-(6-(1,1,1,3,5,5,5-heptamethyltrisiloxan-3-yl)hexyl)thiophen-2-yl)benzo[1,2-b:4,5-b'']dithiophen-2-yl)-4-(2-ethylhexyl)thiophen-2-yl)-5,7-bis(2-ethylhexyl)-3-(4-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-c:4,5-c'']dithiophene-4,8-dione] (P4). 393.5. Fabrication of polymer solar cells. 423.6. Measurements and characterization of the OSCs. 434. Result and Discussion 454.1. Synthesis and characterization. 454.2. Thermal properties. 534.3. Optical properties. 554.4. Electrochemical properties. 604.5. Photovoltaic properties. 634.6. Morphological studies. 674.7. Hole mobility. 695. Conclusion 726. Reference 73
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