화학공학소재연구정보센터
학회 한국재료학회
학술대회 2017년 가을 (11/15 ~ 11/17, 경주 현대호텔)
권호 23권 2호
발표분야 A. 전자/반도체 재료 분과
제목 High quality of oxide/metal/oxide transparent conducting eletrode fabricated with Cu-Mo metal composite layer for the application in efficient CIGS solar cell
초록 In order to improve the performance of Al-doped ZnO (AZO) based transparent conducting oxide (TCO) films, a metal Cu-Mo composite layer has been introduced between two AZO films to form oxide/metal/oxide structure. The AZO/Cu-Mo/AZO (ACMA) multilayer film was prepared at room temperature by direct current magnetron sputtering equipped with multi-targets. To evaluate the performance of ACMA film as transparent conductors, the optical and electrical properties have been studied. These studies have shown the introduction of Cu-Mo composite layer significantly improves the performance of transparent conducting ACMA film compared to the AZO film as well as AZO/Cu/AZO (ACA) and AZO/Mo/AZO (AMA) multilayer films. The opto-electrical properties of the ACMA film critically depend on the thickness of Cu-Mo composite layer. The highest figure of merit ~ 7.96 × 10-4 Ω-1 is obtained for the ACMA film with 10 nm thick Cu-Mo composite layer, indicating optimum conditions for the fabrication of transparent conducting electrodes. The CIGS solar cell fabricated with ACMA electrode exhibits substantially higher efficiency (11.59 %), compared to ACA or AMA electrodes. The gain in the cell efficiency is attributed to the improved opto-electrical characteristics of the ACMA electrode, resulting from the optimum optical transmittance and charge carrier collections.
저자 San Kang1, Dae-Young Um2, Raju Nandi3, Jae-Kwan Sim4, Jun-Yong Jo1, Hyeeun Kim2, Pil-Jun Kim3, Jung Hoon Yang4, Suel Lee1, Cheul-Ro Lee2
소속 1School of Advanced Materials Engineering, 2Engineering College, 3Research Center for Advanced Materials Development (RCAMD), 4Chonbuk National Univ.
키워드 Transparent conducting oxide; sputtering; Cu-Mo composite; transmittance; sheet resistance; figure of merit; CIGS solar cell
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