Solution processed hole transport layer towards efficient and cost effective organic solar cells. (1st May 2018)

• Record Type: Journal Article
• Authors: Bhargav, Ranoo; Patra, Asit; Dhawan, S.K.; Gairola, S.P.
• Is Part Of: Solar energy. Volume 165(2018)
• Page Start: 131
• Page End: 135
• Publication Date: 2018-05-01
• Subjects: Hole transport layer -- Copper Sulfide -- Solution processed -- Low cost -- Organic solar cells; Solar energy -- Periodicals; Solar engines -- Periodicals; 621.47
• DOI: 10.1016/j.solener.2018.03.006
• Languages: English
• ISSNs: 0038-092X

Abstract

Graphical abstract: Highlights: Solution processed, low cost, robust and easily available hole transport layer material. The potential importance of such HTL for efficient and cost effective OSCs. This HTL gives better performance as compare to other well known HTLs. The main advantages of such HTL are highly transparent, stable, easy deposition, inexpensive and solution processed. These properties are crucial for cost effective and roll-to-roll OSCs fabrication. Abstract: In this work, we report Copper Sulfide (CuS) as a solution processed, inexpensive and effective hole transport layer (HTL) for efficient and low cost organic solar cells. These devices were fabricated using two most studied low band gap donor materials PTB7 and PCDTBT blended with PC71 BM as an acceptor material. We have used a simplest device architect such as ITO/CuS/active layer/Al at ambient conditions. The power conversion efficiencies (PCEs) of these devices have been achieved to up to 4.32% and1.76 % for PTB7 and PCDTBT based devices respectively. Finally, we have provided a further example of solution processable CuS as an effective HTL for solution processable organic photovoltaic applications.