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Perovskite Solar Cells Based on Carbon Nanotube Electrodes Infiltrated with Hole Transport Materials

정공수송물질이 침투된 탄소 나노 튜브 전극 기반 페로브스카이트 태양전지

Eun Chong Chae12†
,
Do-Ha Kim1†
,
Jae Young Park1
,
Hee Jeong Jeong1
,
Kyung Mun Yeom1
,
Yeonsu Jung3
,
Jinho Jang34
,
Sang Woon Na15
,
Sang Hyuk Im2
,
Bong Joo Kang1*
,
Soonil Hong1*
,
Nam Joong Jeon1*
채 은총12†
,
김 도하1†
,
박 재용1
,
정 희정1
,
염 경문1
,
정 연수3
,
장 진호34
,
나 상운15
,
임 상혁2
,
강 봉주1*
,
홍 순일1*
,
전 남중1*
1Division of Advanced Materials, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Korea
2Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Korea
3Composites & Convergence Materials Research Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Korea
4Department of Biomedical Engineering, Hanyang University, Seoul, 04763, Korea
5Department of Advanced Materials Engineering, Kyonggi University, Suwon, 16227, Korea
1화학소재연구본부, 한국화학연구원, 대전, 34114
2화공생명공학과, 고려대학교, 서울, 02841
3융･복합재료연구본부, 한국재료연구원, 창원, 51508
4바이오메디컬공학과, 한양대학교, 서울, 04763
5신소재공학과, 경기대학교, 수원, 16227
*Corresponding Author
†These authors contributed equally to this work.
31 March 2026. pp. 19-24
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Abstract

Traditionally, expensive metals like gold or silver have been used as the rear electrode for perovskite solar cells (PSCs), which have highly efficient performance. Within this framework, carbon nanotube (CNT) electrodes have been regarded as promising low cost electrodes due to their mechanical strength and excellent electrical conductivity. In spite of these advantages, concerns have arisen about the power conversion efficiency (PCE) and stability of PSCs based on CNTs due to the porosity of CNT electrodes and interfacial issue. In this work, we introduced PM6 hole transport material infiltration method to address issues related to the porosity of carbon nanotube (CNT) electrodes, aiming to improve the performances. As a result, the infiltration of PM6 into the CNT electrode improved the interfacial contact between the CNT electrode and the perovskite layer, thereby the best PCE of 15.49% was achieved in PSCs based on CNT rear electrodes.

Keywords
Perovskite Solar Cells
Carbon Nanotube
Infiltration
PM6
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Information
  • Publisher :Korea Photovoltaic Society
  • Publisher(Ko) :한국태양광발전학회
  • Journal Title :Current Photovoltaic Research
  • Volume : 14
  • No :1
  • Pages :19-24
  • Received Date : 2025-09-13
  • Revised Date : 2025-11-06
  • Accepted Date : 2025-11-06
  • DOI :https://doi.org/10.21218/CPR.2026.14.1.019
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