Study on the large area applicable polymer donors for non-halogenated solvent processable organic photovoltaics = 유기태양전지용 친환경 공정 및 대면적 적용 가능한 도너 고분자에 관한 연구
저자
발행사항
대전 : 과학기술연합대학원대학교 한국화학연구원(KRICT), 2024
학위논문사항
학위논문(박사)-- 과학기술연합대학원대학교 한국화학연구원(KRICT) : 화학소재및공정(AdvancedMaterials&ChemicalEngineering) Advanced Materials 2024. 2
발행연도
2024
작성언어
한국어
주제어
발행국(도시)
대전
형태사항
177 ; 26 cm
일반주기명
지도교수: Jong Cheol Lee
UCI식별코드
I804:30003-200000720640
소장기관
Study on the large area applicable polymer donors for non-halogenated solvent processable organic photovoltaics In order to create commercially feasible polymer solar cells (PSCs), a great deal of research has been done in the last several years, either by developing novel donor materials or by improving device fabrication techniques. Major improvements are required to capitalize on the low cost, flexibility, light weight, and large-scale roll to roll (R2R) fabrication of PSCs into commercialization. These improvements include the use of high-throughput device fabrication conditions, easily scalable high-efficiency low cost donor materials, high stability under real weather conditions, and fabrications using environmentally friendly solvents. From this perspective, we concentrate on the synthesis of effective polymer donors which may find use in large-scale bulk heterojunction solar cells using non- halogenated solvents. Random copolymerization can result in modest molecular structural modifications. These modifications can be done by adding the donor or acceptor unit as third component in to the polymer backbone. These modifications can have a major impact on the polymer band-gap, solubility, miscibility, processability, blend morphology, charge carrier mobility, device performance and large area applicability. Consequently, the creation of high-performing photovoltaic materials requires a thorough knowledge of how these alterations affect optoelectronic and photovoltaic capabilities. We synthesized the various polymer structures involving donor and acceptor (D-A) polymer design in this contribution. We then investigated the relationship between these modifications and the photovoltaic performances of the resulting copolymers. The first chapter serves as an introduction to organic solar cells. A brief history of the creation of organic solar cells, their working mechanism, performance parameters, device design, junction types, applications (semi-transparent OSCs, Indoor OSCs, and flexible OSCs), large area implications and their SWOT analysis are included. In-depth explanations of the developments in material designs and synthesis (polymer and small molecules) were provided. The role of random copolymers was highlighted for the large area applications of the organic solar cells, moreover, challenges and limitations from lab to fab are discussed. The second chapter discuss the synthesis of various terpolymers’ for their room temperature processability with fullerene acceptors and large area applicability by adding the third component structurally very similar to the main backbone of the polymer. This way modified polymer’s optoelectronic properties remain conserved along with non-halogenated solvent processability. Herein, we developed a series of terpolymers by adding structurally different third units like symmetrically asymmetrically substituted alkoxy-benzothiadiazole (BT), ester functionalized-BT, and quinoxaline analogues of benzothiadiazoles. Furthermore, alkyl chain modification and thiophene spacer presence/absence was inspected on quinoxaline for rational terpolymer design. Evermore, quaternary approach was also touched superficially for polymers development. Optical, electrochemical and photovoltaics properties were thoroughly examined. In the end, we find out the rational material exhibited PCE of 9.73% on small area (0.12cm2) and 6.32% on large area (54cm2) in non halogented solvent (o-xylene). The third chapter encloses the role of trifluoromethyl (CF3–) group for the modifications of the state of the art polymers for non-fullerene acceptors (PM6 & D18) towards large area adaptability. Many different kinds of CF3 contained benzene units with varied electron withdrawing ability were introduced into the main backbone of these discussed ultra-modern polymers via random copolymerization to ease their over aggregation. Synthesis of the polymers was controlled and optimized in the long run. The influence of these third components on the optoelectronic and photovoltaic characteristics of the resulting random copolymers was systematically investigated and compared. In the huge gallery of developed polymers, PCE of 18.2% was shown by one of the polymer on small area (0.12cm2) and 11.5% on large area (54 cm2) in environmentally friendly solvent (o-xylene). We further examined that polymer series and explore the function of the CF3 towards these plausible results by means of crystallinity, morphology, charge recombination, and charge carrier mobility measurements. Key words: Organic solar cells, Bulk heterojunction, random copolymerization, Terpolymers, non-halogenated solvent, and large area OSCs. * A thesis submitted to committee of the University of Science and Technology in a partial fulfillment of the requirement for the degree of Doctor of Philosophy conferred in February 2024.
더보기분석정보
서지정보 내보내기(Export)
닫기소장기관 정보
닫기권호소장정보
닫기오류접수
닫기오류 접수 확인
닫기음성서비스 신청
닫기음성서비스 신청 확인
닫기이용약관
닫기학술연구정보서비스 이용약관 (2017년 1월 1일 ~ 현재 적용)
학술연구정보서비스(이하 RISS)는 정보주체의 자유와 권리 보호를 위해 「개인정보 보호법」 및 관계 법령이 정한 바를 준수하여, 적법하게 개인정보를 처리하고 안전하게 관리하고 있습니다. 이에 「개인정보 보호법」 제30조에 따라 정보주체에게 개인정보 처리에 관한 절차 및 기준을 안내하고, 이와 관련한 고충을 신속하고 원활하게 처리할 수 있도록 하기 위하여 다음과 같이 개인정보 처리방침을 수립·공개합니다.
주요 개인정보 처리 표시(라벨링)
목 차
3년
또는 회원탈퇴시까지5년
(「전자상거래 등에서의 소비자보호에 관한3년
(「전자상거래 등에서의 소비자보호에 관한2년
이상(개인정보보호위원회 : 개인정보의 안전성 확보조치 기준)개인정보파일의 명칭 | 운영근거 / 처리목적 | 개인정보파일에 기록되는 개인정보의 항목 | 보유기간 | |
---|---|---|---|---|
학술연구정보서비스 이용자 가입정보 파일 | 한국교육학술정보원법 | 필수 | ID, 비밀번호, 성명, 생년월일, 신분(직업구분), 이메일, 소속분야, 웹진메일 수신동의 여부 | 3년 또는 탈퇴시 |
선택 | 소속기관명, 소속도서관명, 학과/부서명, 학번/직원번호, 휴대전화, 주소 |
구분 | 담당자 | 연락처 |
---|---|---|
KERIS 개인정보 보호책임자 | 정보보호본부 김태우 | - 이메일 : lsy@keris.or.kr - 전화번호 : 053-714-0439 - 팩스번호 : 053-714-0195 |
KERIS 개인정보 보호담당자 | 개인정보보호부 이상엽 | |
RISS 개인정보 보호책임자 | 대학학술본부 장금연 | - 이메일 : giltizen@keris.or.kr - 전화번호 : 053-714-0149 - 팩스번호 : 053-714-0194 |
RISS 개인정보 보호담당자 | 학술진흥부 길원진 |
자동로그아웃 안내
닫기인증오류 안내
닫기귀하께서는 휴면계정 전환 후 1년동안 회원정보 수집 및 이용에 대한
재동의를 하지 않으신 관계로 개인정보가 삭제되었습니다.
(참조 : RISS 이용약관 및 개인정보처리방침)
신규회원으로 가입하여 이용 부탁 드리며, 추가 문의는 고객센터로 연락 바랍니다.
- 기존 아이디 재사용 불가
휴면계정 안내
RISS는 [표준개인정보 보호지침]에 따라 2년을 주기로 개인정보 수집·이용에 관하여 (재)동의를 받고 있으며, (재)동의를 하지 않을 경우, 휴면계정으로 전환됩니다.
(※ 휴면계정은 원문이용 및 복사/대출 서비스를 이용할 수 없습니다.)
휴면계정으로 전환된 후 1년간 회원정보 수집·이용에 대한 재동의를 하지 않을 경우, RISS에서 자동탈퇴 및 개인정보가 삭제처리 됩니다.
고객센터 1599-3122
ARS번호+1번(회원가입 및 정보수정)