Modeling of a Sn-Based HTM-Free Perovskite Solar Cell Using a One-Dimensional Solar Cell Capacitance Simulator Tool  

作　　者：Eli Danladi Muhammad Kashif Andrew Ichoja Bikimi Bitrus Ayiya 

机构地区：[1]Department of Physics,Federal University of Health Sciences,PMB 145,Otukpo,Benue State,Nigeria [2]School of Electrical Automation and Information Engineering,Tianjin University,Tianjin 300072,China [3]Faculty of Engineering and Applied Technology,Universal College of Learning,Private Bag 11022,Palmerston North,New Zealand

出　　处：《Transactions of Tianjin University》2023年第1期62-72,共11页天津大学学报（英文版）

摘　　要：Tin(Sn)-based perovskite solar cells(PSCs)have received increasing attention in the domain of photovoltaics due to their environmentally friendly nature.In this paper,numerical modeling and simulation of hole transport material(HTM)-free PSC based on methyl ammonium tin triiodide(CH_(3) NH_(3) SnI_(3))was performed using a one-dimensional solar cell capacitance simulator(SCAPS-1D)software.The eff ect of perovskite thickness,interface defect density,temperature,and electron transport material(ETM)on the photovoltaic performance of the device was explored.Prior to optimization,the device demonstrated a power conversion effi ciency(PCE)of 8.35%,fi ll factor(FF)of 51.93%,short-circuit current density(J_(sc))of 26.36 mA/cm 2,and open circuit voltage(V_(oc))of 0.610 V.Changing the above parameters individually while keeping others constant,the obtained optimal absorber thickness was 1.0μm,the interface defect density was 1010 cm-2,the temperature was 290 K,and the TiO 2 thickness was 0.01μm.On simulating with the optimized data,the fi nal device gave a PCE of 11.03%,FF of 50.78%,J_(sc) of 29.93 mA/cm 2,and V_(oc) of 0.726 V.Comparing the optimized and unoptimized metric parameters,an improvement of~32.10%in PCE,~13.41%in J_(sc),and~19.02%in V_(oc) were obtained.Therefore,the results of this study are encouraging and can pave the path for developing highly effi cient PSCs that are cost-eff ective,eco-friendly,and comparable to state-of-the-art.

关 键 词：Perovskite solar cells Sn-based perovskite absorber TiO_(2) Defect density Temperature HTM-free 

分 类 号：TB34[一般工业技术—材料科学与工程] TM914.4[电气工程—电力电子与电力传动]