To view this presentation:

  • If you have an MRS account, click the Login button above.
  • New to MRS?  Create a free account here



  0       0

2015 MRS Spring Meeting


C6.01 - High Efficiency Perovskite Solar Cells via Material and Device Engineering


Apr 9, 2015 8:30am ‐ Apr 9, 2015 9:00am

Description

Since the first report on a long-term durable solid-state perovskite solar cell with a PCE of 9.7% in 2012, perovskite solar cell has been intensively researched. As a result PCE approaches almost 20% in about 2 years. In this talk, opto-electronic properties of perovskite materials and high efficiency device engineering will be discussed. Photoferroic property of methylammonium lead iodide is observed, which is significantly dependent on perovskite crystal size. Size-dependent photoferroic effect is found to influence on I-V hysteresis. Interfaces play important roles in photovoltaic performance, where the blocking layer/perovskite interface affects photocurrent but voltage is influenced by the perovskite/HTM interface. Imperfect blocking layer is however found to deteriorate voltage significantly according to ZnO nanorod study. Photo-generated electrons are transported both in perovskite and TiO2 as observed in TiO2 nanohelix based perovskite solar cell, where injection into TiO2 depends on surface area of TiO2 helicies. By interfacial and morphological optimization, power conversion efficiency (PCE) over 17% is routinely attained. Furthermore, feasibility study shows that hybridization of perovskite solar cell with a conventional semiconductor solar cell can lead to PCE approaching 30%.

Speaker(s):

You must be logged in and own this session in order to post comments.

Print Certificate
Review Answers
Print Transcript
Completed on: token-completed_on
Review Answers
Please select the appropriate credit type:
/
test_id: 
credits: 
completed on: 
rendered in: 
* - Indicates answer is required.
token-content
token-speaker-name image
token-speaker-name
token-index
token-content
token-index
token-content
token-index
token-content
token-index
token-content
token-index
token-content
token-index
token-content
/
/
token-index
token-content