http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Synthesis and characterization the novel p-type polymer for organic thin-film transistors
마재열,김윤희,이소정,김형남,이상봉 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1
We have designed and synthesized the novel p-type polymer containing thienothiophene, thiophene and fluorene with OTFT characteristics. The polymer was synthesized by the palladium catalyzed Suzuki coupling reaction with thienothiophene derivatives, thiophene derivatives and fluorine derivatives. The obtained PTT2BTF can dissolve in common organic solvents such as toluene, THF, chloroform, chlorobenzene and dichlorobenzene. PTT2BTF has a number average molecular weight (Mn) of 25,000 with a poly dispersity index (PDI) of 1.66. PTT2BTF showed good thermal stability with high Td of 407°C. The OTFT characteristics of the polymer (PTT2BTF) were fabricated. Organic semiconductor was found to exhibit typical p-channel FET characteristics with a hole mobility of 6.3×10<sup>-5</sup> cm<sup>2</sup>/Vs and a threshold voltage of -4 V.
Novel alkoxyanthracene donor and benzothiadiazole acceptor for organic photovoltaic cells
마재열,윤희준,안은수,김명종,김형남,박광훈,김윤희 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.1
Novel alkoxy anthracene (ODA)-based polymeric semiconductors were designed for polymer solar cell applications. Alkoxyanthracene, which contains many p electrons and electron donating group, was easily synthesized. The copolymers, poly(alkoxy anthracene-alt-thiophene benzothiadiazole thiophene) poly(ODA-TBT) and poly(alkoxy anthracenealt- benzothiadiazole) poly(ODA-BT), have been obtained by Suzuki coupling polymerization. Both polymers have ODA unit as a donor and benzothiadiazole as an acceptor. ODA-TBT has thiophene linkages between ODA and benzothiadiazole. The optical, thermal, and electrochemical properties have been investigated by UV-visible absorption, thermal gravimetric analysis, differential scanning calorimetry, and CV.
A new small molecule base on dithienobenzodithiophene for use in photovoltaic devices
천예림,마재열,윤희준,김란,백장열,김유진,안태규,박찬언,김윤희 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.1
We designed and synthesized a dithienobenzodithiophene (DTBDT)- based molecule with a planar molecular geometry, DTBDT-TTPD, for the fabrication of solution-processable organic solar cells (OSCs). DTBDT-TTPD exhibited both a low optical band gap of 1.88 eV and a low-lying highest occupied molecular orbital (HOMO) energy level of -5.61 eV, indicating that DTBDT-TTPD is a promising electron donor for use in OSCs. OSCs prepared with DTBDT-TTPD as the electron donor and [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) as the electron acceptor were fabricated. An optimized power conversion efficiency of 4.98% with a high short circuit current of 10.6 mA/cm<sup>2</sup> was achieved after finely tuning the morphology through an annealing step. These results indicate that DTBDT-TTPD is an effective compound for producing very promising characteristics in small molecule solar cell devices.
안은수,마재열,이예슬,이소정,황재영,김윤희 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1
We were designed and studied two asymmetric alkylphenyl-substituted anthracene for small molecule solar cells applications, NDHPEA and TNDHPEA. The first such molecule was 9,10-bis((4-hexylphenyl) ethynyl)-2-(naphthalen-2-yl)anthracene (NDHPEA), a small molecule containing an alkylphenyl-substituted-anthracene core unit with a naphthalene terminal unit. The second such molecule was 2-(9,10-bis ((4-hexylphenyl)ethynyl)anthracen-2-yl)-5-(naphthalen-2-yl)thiophen e (TNDHPEA), a small molecule composed of the core moiety used in NDHPEA, except for the introduction of a thiophene-bridged naphthalene arm unit. The two molecules differed only in the presence of a thiophene spacer. We focused on how the thiophene spacer influenced the nanoscale crystalline characteristics of the active layers and the resulting device performances. The asymmetric NDHPEA and TNDHPEA molecules were synthesized through the nucleophilic addition of a hexylphenylethnyl group, followed by a reduction reaction and a Suzuki coupling reaction. The thermal, photophysical, electrichemical properties have been investigated by thermal gravimetric analysis(TGA), differential scanning calorimetry (DSC), UV-visible absorption, and CV.
A new alternating copolymer quarterthiophene and alkoxy naphthalene for organic thin film transistor
김형남,김윤희,마재열,안은수,이예슬,황재영 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1
A alternating copolymers were synthesized by a Suzuki coupling reaction. The copolymers showed good solubility in common solvents such as chloroform and toluene, etc. It’s optical, thermal and electrochemical properties and organic thin film transistor characteristics were characterized. The structure confirmed using 1H NMR, FT-IR spectroscopy. The weight average Mw of PQTHN and PQTON were found to be 9200 with polydispersity of 1.2 and 30600 with that of 2.39, respectively. Solution processed OTFTs using PQTON exhibited 6.96 × 10<sup>-4</sup> cm<sup>2</sup> V<sup>-1</sup> s<sup>-1</sup> as mobility with an on/off ratio of 2.46 × 10<sup>4</sup>.
Synthesis of poly(silole-fluorene) copolymers
이소정,김윤희,마재열,하연희,유셴칭 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1
New poly(silole-fluorene) copolymers were designed and synthesized. Copolymers were obtained by Suzuki coupling reaction with different ratio of fluorene and silole. The obtained copolymers were characterized by the spectroscopic methods such as FT-IR and <sup>1</sup>H-NMR spectroscopies. The resulting copolymers were soluble in common organic solvents such as toluene, tetrahydrofurane, chloroform, chlorobenzene, etc. The obtained copolymers showed thermal stabilities, which were characterized by TGA and DSC. PLEDs with device configurations of ITO/PEDOT:PSS/Copolymer I~VI/LiF/Al. The best device performances, with maximum brightness of 231.5 cd/m<sup>2</sup> at a current density (J) of 408.3 mA/cm<sup>2</sup>, and a maximum luminance efficiency of 0.115 cd/A.