NIR absorbing D-π-A-π-D structured diketopyrrolopyrrole-dithiafulvalene based small molecule for solution processed organic solar cells.
A new low band gap small molecule with a D-π-A-π-D molecular structure composed of a dithiafulvalene (DTF) donor and a diketopyrrolopyrrole (DPP) acceptor was synthesized and tested for organic solar cells. Using the small molecule as an electron donor, and PC71BM as an acceptor a high power conversion efficiency (PCE) of 4.3% was achieved.
Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad-500007, India. spsingh@iict.res.in and Academy of Scientific and Innovative Research, CSIR-IICT, India.
K
K
Narayanaswamy
Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad-500007, India. spsingh@iict.res.in.
A
A
Venkateswararao
Organic and Hybrid Solar Cells, Physics of Energy Harvesting Division, CSIR-National Physical Laboratory, New Delhi-110012, India.
Vinay
V
Gupta
Organic and Hybrid Solar Cells, Physics of Energy Harvesting Division, CSIR-National Physical Laboratory, New Delhi-110012, India.
Suresh
S
Chand
Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad-500007, India. spsingh@iict.res.in and Academy of Scientific and Innovative Research, CSIR-IICT, India.
Surya Prakash
SP
Singh