| 학회 |
한국공업화학회 |
| 학술대회 |
2014년 봄 (04/30 ~ 05/02, 제주국제컨벤션센터) |
| 권호 |
18권 1호 |
| 발표분야 |
포스터-에너지저장.변환 |
| 제목 |
Low cost electrospun highly crystalline kesterite Cu2ZnSnS4 nanofibers counter electrodes for efficient dye sensitized solar cells |
| 초록 |
In the present investigation, kesterite Cu2ZnSnS4 (CZTS) nanofibers were obtained by electrospinning process using Polyvinylpyrrolidone (PVP) and Cellulose acetate (CA) solvent separately. Our results showed that the PVP synthesized CZTS nanofibers are a single crystalline while CA assisted CZTS nanofibers are polycrystalline in nature. The optical properties demonstrated that the prepared nanofibers have strong absorption in 300–550 nm range with band gap energy of 1.5 eV. The X-Ray and micro-Raman analysis revealed that synthesised nanofibers showing pure phase kesterite CZTS. Further the synthesized CZTS nanofibers were used as counter electrodes for dye-sensitized solar cells (DSSCs). Our results indicate that, PVP-CZTS and CA-CZTS counter electrode based DSSC shows 3.10% and 3.90% respectively. We believe that our synthetic method will be helpful for low cost and efficient thin film photovoltaic technology. |
| 저자 |
Sawanta S. Mali1, 홍창국2, Chang su Shim2, 심창수2, 장운영2
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| 소속 |
1Chonnam National Univ., 2전남대 |
| 키워드 |
electrospinning; PVP-CZTS and CA-CZTS nanofibers; single crystalline and polycrystalline CZTS; Micro-Raman spectroscopy; Counter electrodes for DSSCs; EIS; 3.9 % conversion efficiency.
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| E-Mail |
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