Thermal curing of interface defects at a-si:H/c-Si in heterojunction with intrinsic thin layer (HIT) solar cell processing

IF 2.4 4区物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Current Applied Physics Pub Date : 2025-01-17 DOI:10.1016/j.cap.2025.01.012

Mengmeng Chu , Junhan Bae , Maha Nur Aida , Hasnain Yousuf , Jaljalalul Abedin Jony , Rafi Ur Rahman , Muhammad Quddamah Khokhar , Sangheon Park , Junsin Yi

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Abstract

This study explores the use of thermal treatment to recover defects at the a-Si:H/c-Si interface caused by transparent conductive oxide (TCO) deposition, improving passivation by diminishing interface defect density (D_it). A 200 °C thermal treatment enhanced HIT solar cell performance, increasing the effective bulk lifetime to 1.1 ms at a minority carrier density of 1.0 × 10¹⁵ cm⁻³. Key performance metrics improved, including J_sc (from 38.70 to 38.88 mA/cm²), V_oc (from 727 to 730 mV), FF (from 75.50 % to 77.82 %), and efficiency (from 21.27 % to 22.09 %). AFORS-HET simulations showed that D_it must be less than 1 × 10¹¹ cm⁻² eV⁻¹ for optimal efficiency. The best solar cell performance, achieved in simulations, included J_sc of 37.71 mA/cm², V_oc of 716.8 mV, FF of 83.50 %, and efficiency of 22.57 % at D_it of 1 × 10⁹ cm⁻² eV⁻¹. This combined approach offers insights into defect management for solar cell technology.

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来源期刊

Current Applied Physics 物理-材料科学：综合

CiteScore

4.80

自引率

0.00%

发文量

213

审稿时长

33 days

期刊介绍： Current Applied Physics (Curr. Appl. Phys.) is a monthly published international journal covering all the fields of applied science investigating the physics of the advanced materials for future applications. Other areas covered: Experimental and theoretical aspects of advanced materials and devices dealing with synthesis or structural chemistry, physical and electronic properties, photonics, engineering applications, and uniquely pertinent measurement or analytical techniques. Current Applied Physics, published since 2001, covers physics, chemistry and materials science, including bio-materials, with their engineering aspects. It is a truly interdisciplinary journal opening a forum for scientists of all related fields, a unique point of the journal discriminating it from other worldwide and/or Pacific Rim applied physics journals. Regular research papers, letters and review articles with contents meeting the scope of the journal will be considered for publication after peer review. The Journal is owned by the Korean Physical Society.