1. CSIR-Network of Institutes for Solar Energy
2. Organic and Hybrid Solar Cells Physics of Energy Harvesting Division; CSIR-National Physical Laboratory; New Delhi 110012 India
3. Center for Polymers and Organic Solids; University of California at Santa Barbara; Santa Barbara CA 93106-5090 USA
4. Academy of Scientific and Innovative Research (AcSIR); CSIR-National Physical Laboratory; Dr. K. S. Krishnan Marg New Delhi 110060 India
5. Ultrafast Optoelectronics and Terahertz Photonics Lab; Physics of Energy Harvesting Division; CSIR-National Physical Laboratory; New Delhi 110012 India