Identifying the potentials for charge transport layers free n-p homojunction-based perovskite solar cells

Khan，Danish1; Sajid，Sajid2; Khan，Suliman3; Park，Jongee4; Ullah，Ihsan5

2022-05-15

10.1016/j.solener.2022.04.034

SOLAR ENERGY   影响因子和分区

0038-092X

1471-1257

Perovskite solar cells (PSCs) with no charge transport layers (CTLs) could be one of the major device architectures for the production of simple and low-cost devices. However, CTLs-free PSCs based on n-p homojunction have yet to show high power conversion efficiency (PCE), which is most likely due to inadequate light-and charge-management in the p-type perovskite. The device operation is examined using Solar Cell Capacitance Simulator (SCAPS)-software, and a novel n-p homojunction design is proposed to attempt efficient CTLs-free PSCs. Several aspects of p-type layer that can affect device performance, such as acceptor density, photon-harvesting capability, defects density, and resistances to the transport of charge-carriers are scrutinized and adjusted. Furthermore, the effects of different work-functions of metal electrodes are examined. A suitable acceptor concentration is required for oriented charge transport. It is determined that a p-type perovskite with a thickness of 0.3 μm is advantageous for high performance. A metal electrode with a high work-function is essential for efficient device. Consequently, a PCE of 15.60% is obtained with an optimal defect density of E15 cm, indicating that n-p homojunction-based CTLs-free PSCs are promising since they simplify the device design and fabrication process while retaining an acceptable PCE.

Acceptor density CTLs-free PSC Defect density P-type absorber Thickness Work function

SCI ; EI

英语

第一

Energy & Fuels

Energy & Fuels

WOS:000796581600003

PERGAMON-ELSEVIER SCIENCE LTD

20221712012208

Computer software ; Defect density ; Electrodes ; Perovskite ; Perovskite solar cells

Minerals:482.2 ; Solar Cells:702.3 ; Computer Software, Data Handling and Applications:723 ; Atomic and Molecular Physics:931.3 ; Quantum Theory; Quantum Mechanics:931.4 ; Crystalline Solids:933.1 ; Electronic Structure of Solids:933.3

ENGINEERING

2-s2.0-85128557842

Scopus

1.Department of Chemistry,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
2.Ph.D. Graduated from School of Renewable Energy,North China Electric Power University,Beijing,102206,China
3.School of Mathematics and Statistics,Central South University,Changsha,Hunan,410083,China
4.Department of Metallurgical and Materials Engineering,Atilim University,Ankara,06836,Turkey
5.Institute of Functional Nano and Soft Materials (FUNSOM),Soochow University,Suzhou,199 Ren-Ai Road, Suzhou Industrial Park, Jiangsu,215123,China

Khan，Danish,Sajid，Sajid,Khan，Suliman,et al. Identifying the potentials for charge transport layers free n-p homojunction-based perovskite solar cells[J]. SOLAR ENERGY,2022,238:69-77.

Khan，Danish,Sajid，Sajid,Khan，Suliman,Park，Jongee,&Ullah，Ihsan.(2022).Identifying the potentials for charge transport layers free n-p homojunction-based perovskite solar cells.SOLAR ENERGY,238,69-77.

Khan，Danish,et al."Identifying the potentials for charge transport layers free n-p homojunction-based perovskite solar cells".SOLAR ENERGY 238(2022):69-77.