Details

Autor(en) / Beteiligte

• Gupta, Vishal
• Srivastava, Anju
• Jain, Reena
• Sharma, Vijay Kumar
• Kumar, Lalit

Titel

Optimization and development of ITO-free plasmonic gold nanoparticles assisted inverted organic solar cells

Ist Teil von

• Optical materials, 2022-09, Vol.131, p.112747, Article 112747

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We report an indium tin oxide (ITO) free inverted organic solar cell with an alternate aluminium doped zinc oxide (AZO) front cathode layer based on the consideration of blocking harmful ultraviolet (UV) rays, which is one of the prominent reasons for degradation of organic solar cells. To further enhance the power conversion efficiency of AZO/ZnO/PTB7:PC71BM/MoO3/Ag organic solar cell, plasmonic gold nanoflowers were embedded inside the active layer. The critical parameter of thickness of electron transport layer (ETL), hole transport layer (HTL) and active layer war first optimized through simulations using general purpose photovoltaic device model (GPVDM) software. The experimental fabrication of the desired geometry was then carried out based on optimized thickness. The power conversion efficiency (PCE) under UV exposure was found remarkably constant for AZO front electrode solar cell was as compared to conventional ITO based organic solar cells. This is attributed to the UV blocking property of AZO. The PCE was boosted from 6.19% to 7.01% on further use of plasmonic Au nanoparticles in the active layer of AZO/ZnO/PTB7:PC71BM/MoO3/Ag. This work provides a practical insight of developing an ITO free, plasmonic nanoparticles assisted inverted organic solar cell with enhanced efficiency and stability. •We optimized and fabricated an ITO free inverted OSC with an alternative AZO layer as front cathode.•AZO blocks UV rays which is one of the leading causes of OSC degradation.•The OSC is developed based on the optimal thickness of ETL, HTL and active layer, done using GPVDM software.•The AZO based OSC exhibited better lifetime than the ITO based control device.•The introduction of plasmonic Au nanoparticles in the active layer enhanced the PCE of the device from 6.19% to 7.01%.