Search for dissertations about: "Dopant-free"

Found 2 swedish dissertations containing the word Dopant-free.

2. 1. Organic Hole-Transport Materials for Perovskite Solar Cells

   Author : Linqin Wang; Licheng Sun; Nam-Gyu Park; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Hole-transport material; Photovoltaic device; Perovskite solar cell; Dopant-free; Carbazole; Spiro[fluorene-9; 9 -xanthene]; Small organic molecule; Crosslinked polymer; Solution-processed.; Kemi; Chemistry;

   Abstract : Research on perovskite solar cells (PSCs) has undergone dramatic development since the first cells were reported in 2009, and the past decade has witnessed a significant breakthrough on their power conversion efficiencies (PCEs) from 3.8% to 25%. READ MORE

4. 2. High Bandgap FAPbBr3 Perovskite Solar Cells : Preparation, Characterization, and Application

   Author : Yawen Liu; Erik Johansson; Tönu Pullerits; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; High-bandgap FAPbBr3; additives; defect passivation; dopant-free HTMs; 2D perovskites; carbon electrode; oxygen evolution; Chemistry with specialization in Physical Chemistry; Kemi med inriktning mot fysikalisk kemi;

   Abstract : High bandgap lead-halide perovskite solar cells (PSCs) have gained interest as top cells for tandem solar cells and photoelectrochemical applications due to their suitable energy bands. However, the PSCs have limited stability and performance, and their fabrication in a glovebox and utilization of expensive metal contacts increase the cost and limit their application. READ MORE