Repository logo
  • English
  • 中文
Log In
Have you forgotten your password?
  1. Home
  2. College of Engineering / 工學院
  3. Materials Science and Engineering / 材料科學與工程學系
  4. Development of Polymer Solar Cell System Based on Polymer/Nanocrystal Hybrid and Incorporation of Nanocrystals into Polymer Solar Cell as Additives
 
  • Details

Development of Polymer Solar Cell System Based on Polymer/Nanocrystal Hybrid and Incorporation of Nanocrystals into Polymer Solar Cell as Additives

Date Issued
2010
Date
2010
Author(s)
Liao, Hsueh-Chung
URI
http://ntur.lib.ntu.edu.tw//handle/246246/251791
Abstract
Polymer photovoltaic devices have attracted considerable interest over the past decade owing to the advantages of low-cost, low weight, solution fabrication process, large area and flexibility. The hybrid materials made from conducting polymers and inorganic semiconducting nanocrystals have potential application in solar cell due to their physical stability. In the first part and second part of our study, we have tried to develop new systems of polymer solar cell based on either P3HT / Bi2S3 nanorods or P3HT / Cu2S nanoparticles hybrid. Nanocrystals of Bi2S3 and Cu2S are environmental friendly and low cost. Both nanocrystals have low band gap (lower than 1.8 eV) which show potentials in sun light harvesting. The synthesis and characterization of Bi2S3 nanorods and Cu2S nanoparticles were conducted. Additionally, the properties of hybrid films of P3HT / Bi2S3 nanorods or P3HT / Cu2S nanoparticles were performed. TypeⅡ band alignment between P3HT and low band gap nanocrystals gives chances for charge separation at the interfaces. The photovoltaic devices based on P3HT / Bi2S3 and P3HT / Cu2S hybrid exhibit power conversion efficiency of 0.06 % and 0.1% respectively under AM 1.5, 100 mW/cm2 illumination. In the third part of this research, we incorporated Cu2S nanoparticles as an additive to improve the power conversion efficiency of P3HT / PCBM system. A 16 % increase in power conversion efficiency (from 3.7 % to 4.3 %) has been achieved by incorporating 0.05 mg ml-1 Cu2S nanoparticles in the P3HT / PCBM active layer under proper thermal treatment. The additive induced morphology variations of active layer were analyzed by AFM and grazing incidence X-ray diffraction. The results reveal the Cu2S nanoparticles hinder the growth of PCBM clusters and compress the crystallization of P3HT during thermal treatment. The smaller crystal dimension of P3HT and reduced size of PCBM clusters result in finer structures, larger interfaces, and closer interconnecting between P3HT and PCBM which enhance the power conversion efficiency. Other nanoparticles such as CdSe with similar size to Cu2S also lead to the similar effect. We therefore conclude that the incorporation of adequate amount of nanoparticles in the active layer is an effective strategy to improve the performance of P3HT / PCBM solar cells.
Subjects
nanoparticle
conducting polymer
solar cell
additive
SDGs

[SDGs]SDG7

Type
thesis
File(s)
Loading...
Thumbnail Image
Name

ntu-99-R97527018-1.pdf

Size

23.53 KB

Format

Adobe PDF

Checksum

(MD5):a8000496cec2faae072b272e58a39eb4

臺大位居世界頂尖大學之列,為永久珍藏及向國際展現本校豐碩的研究成果及學術能量,圖書館整合機構典藏(NTUR)與學術庫(AH)不同功能平台,成為臺大學術典藏NTU scholars。期能整合研究能量、促進交流合作、保存學術產出、推廣研究成果。

To permanently archive and promote researcher profiles and scholarly works, Library integrates the services of “NTU Repository” with “Academic Hub” to form NTU Scholars.

總館學科館員 (Main Library)
醫學圖書館學科館員 (Medical Library)
社會科學院辜振甫紀念圖書館學科館員 (Social Sciences Library)

開放取用是從使用者角度提升資訊取用性的社會運動,應用在學術研究上是透過將研究著作公開供使用者自由取閱,以促進學術傳播及因應期刊訂購費用逐年攀升。同時可加速研究發展、提升研究影響力,NTU Scholars即為本校的開放取用典藏(OA Archive)平台。(點選深入了解OA)

  • 請確認所上傳的全文是原創的內容,若該文件包含部分內容的版權非匯入者所有,或由第三方贊助與合作完成,請確認該版權所有者及第三方同意提供此授權。
    Please represent that the submission is your original work, and that you have the right to grant the rights to upload.
  • 若欲上傳已出版的全文電子檔,可使用Open policy finder網站查詢,以確認出版單位之版權政策。
    Please use Open policy finder to find a summary of permissions that are normally given as part of each publisher's copyright transfer agreement.
  • 網站簡介 (Quickstart Guide)
  • 使用手冊 (Instruction Manual)
  • 線上預約服務 (Booking Service)
  • 方案一:臺灣大學計算機中心帳號登入
    (With C&INC Email Account)
  • 方案二:ORCID帳號登入 (With ORCID)
  • 方案一:定期更新ORCID者,以ID匯入 (Search for identifier (ORCID))
  • 方案二:自行建檔 (Default mode Submission)
  • 方案三:學科館員協助匯入 (Email worklist to subject librarians)

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science