화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.46, No.3, 409-417, May, 2022
DOI10.7317/pk.2022.46.3.409  Export Citation
전도성 고분자를 첨가제로 사용한 광전기화학 물 분해용 n-type 광양극
N-type Photoanodes for Photoelectrochemical Water Splitting Using a Newly Synthesized Conjugated Polymer as an Additive
성민기, 김태홍, 안효진1, †, 이정훈†
  • 동서대학교 화학공학부
  • 1LSTME Busan
Mingi Sung, Taehong Kim, Hyo-Jin Ahn1, †, and Junghoon Lee†
  • Division of Chemical Engineering, Dongseo University, Busan 47011, Korea
  • 1LSTME Busan, Busan 46742, Korea
E-mail:,
초록
광전기화학 물 분해 시스템에서 사용하는 무기물질을 전도성 고분자로 직접 대체하여 유기광양극을 제조한 연구는 많이 진행되지 않았다. 따라서 본 연구는 광전류밀도를 증가시키기 위하여 n-type 유기반도체인 N2200과 신 규 합성한 전도성 고분자인 PCFCS를 첨가제로 사용한 광양극을 제작하였다. 선형주사전위법으로 광전류밀도를 측 정한 결과 PCFCS 첨가제를 포함하지 않은 광양극의 광전류밀도는 1.12 μA/cm2였다. 5.0 μg의 PCFCS를 N2200에 첨가제로 사용하였을 때 광전류밀도는 1.82 μA/cm2로 62.5% 증가한 값을 확인하였다.
Replacing inorganic semiconductors with organic semiconductors for photoelectrochemical water-splitting (PEC-WS) has been challenging. In this study, a photoanode was fabricated by both n-type organic semiconductor, poly{[N,N'-bis(2-octyldodecyl)naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl]-alt-5,5'-(2,2'-bithiophene)} (N2200) and a newly synthesized conjugated polymer, poly(4-(4,4-dihexadecyl-4H-cyclopenta[1,2-b:5,4-b']dithiophen-2-yl)-7-(4,4-dihexadecyl-6-(thiophen-2-yl)-4H-cyclopenta[1,2-b:5,4-b']dithiophen-2-yl)-5-fluorobenzo[c][1,2,5]thiadiazole) (PCFCS) as an additive and it has enhanced photocurrent density. Linear sweep voltammetry revealed that the addition of PCFCS (5.0 μg) increased the photocurrent density up to 62.5% (1.12 to 1.82 μA/cm2).
Keywords:photoelectrochemical water splitting;conjugated polymer;additive;organic semiconductor;organic photoanode
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